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Accessories

$269.95
Park's Bench-Mount Repair Stand easily bolts to any workbench and includes Park's shop-quality solid cast-aluminum Adjustable-Linkage Clamp that boasts durable, protective and replaceable vinyl jaw covers. The clamp holds seatposts and frames from an inch to 1 5/8 inches in diameter and there are slots for cables, too. Plus, this stand rotates 360 degrees for optimum bike positioning.
$269.95
Topeak's TwoUp TuneUp Bike Stand easily holds 2 bikes up and out of the way. But, the best part is that it's solid enough to serve as a light-duty work stand as well! Made with tough aluminum tubing, the center pillar extends to almost 7 feet while the tripod base acts as a super-stable platform. The 2 included bike mounts swivel up to 30 degrees to accommodate sloping tubes and the lower mount includes a handlebar stabilizer to hold your bike while you're wrenching. Plus, this awesome stand has the capacity to carry up to 4 bikes and 158.7 pounds.
$268.95
Park Tool's Fork Threading Set is designed for cutting new threads and for chasing existing threads on fork columns that are not chromed. The FTS-1's expandable cutting dies are made from the highest quality high-speed steel for precision cutting and long life. The unique thread guide system used with the FTS-1 is specially designed to allow the metal chips and shavings that result during use to fall completely through the guide, preventing damage to the fork threads and the tool. The FTS-1 includes: • Die handles • 1" x 24 tpi cutting die (Part #606) • 1" cutting guide (Part #610) Accessory dies and guides are also available separately: • 1-1/8" x 26 die (Part #607) • 1-1/8" guide (Part #611) • 1-1/4" x 26 die (Part #608) • 1-1/4" guide (Part #612) Die handles fit all three sizes of dies and guides.
$267.95
Park Tool's 130 Repair Stand Base is designed for the PRS-3, PRS-3OSLB, PRS-3 OS-1, PRS-3 OS-2 and the PRS-23 LB Repair Stands (each sold separately). • 22-1/2" x 22-1/2" x 7/16" (57cm x 57cm by 1.1cm) steel plate • Approximately 68 lbs (31k) • Black painted
$263.00
Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED
$263.00
Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED
$262.98
- 11 speed compatible - Allows removal, installation and peening of rivets
$260.00
At nearly 20% lighter than our (already) lightweight stand collection, the Ultralight takes no performance shortcuts to achieve its feathery 10.6lb (4.8kg) total weight. Despite a slender scale reading it still possess the same durability and stability of our other stands. With the 360° rotating Slide-Lock clamp and a 54? (137cm) wide base with rubber-coated end caps, confidence in the security of your bike is never in question. And when the service day is done, it folds in to a space-saving unit for storage or travel. Look to our Tool Tray and Pro Truing Station upgrades to create the optimal home bike maintenance setup.
$250.00
If you sometimes have trouble deciding which extra T-shirts to take along, or whether you should take two pairs of shoes or three, you may want to switch to Ortlieb because the world's largest waterproof bike bags have plenty of space for everything you need. The Back-Roller Pro Plus is the XL version of the popular Back-Roller Plus touring bag. With a volume of 70 liters per pair, it offers almost twice as much stowage space. It's also the first Ortlieb Back-Roller with an additional front pocket. Although not waterproof, the pocket is unusually practical, offering 4 liters of space for water bottles, sunscreen, wet things, and other items. The durable Cordura fabric gives the bag a noble, woven-fabric look, and is also completely PVC-free. The proven roll closure keep the contents of the inner compartment clean and dry at all times. Thanks to the ingenious QL2.1 system with its self-closing hooks, you can conveniently mount your bags on almost any bike rack. - XL rear panniers (pair) with roll closure for extended touring with lots of equipment - Outer front pocket (2 x 4 L) folds flat, with reflective thread, ideal for damp clothing - Material: PU-laminated Cordura - Integrated inner pocket and shoulder strap - Easy to clean inside - Two strong 3M Scotchlite reflectors - QL2.1 mounting system for racks with tube diameter max. 16 mm - 20 mm hook available as accessory (e.g. for e-bikes) - Reduction inserts for tube diameters 8, 10 or 12 mm with anti-scratch-function protecting the rack from abrasions - Upper QL-hooks and lower hook adjustable without requiring any tools - Lower hook with anti-scratch function protecting the rack from abrasions - Symmetrical shape allows use on right or left side - Can be combined on the rack with Ortlieb Rack-Pack size 24L or 31L
$250.00
The waterproof Sport-Packer Plus made of tough Cordura fabric is perfectly suitable as lowrider pannier in the front, "small" rear pannier or for children's bikes. The QL2.1 fixing offers quick and comfortable singlehanded mounting to the rack. - Universal panniers for low-rider racks in the front or rear racks - Abrasion resistant Cordura fabric - QL2.1 mounting system for racks with max. 16 mm tube diameter - 20 mm hook available as separate accessory (e.g. for E-bikes) - Reduction inserts for tube diameters 8, 10 or 12 mm with anti-scratch function preventing abrasion on the rack - Hooks adjustable without requiring tools - Lower hook rail made of two-component hard-soft synthetic with anti-scratch function protecting the rack - Including integrated inner pocket and shoulder strap - Ideal alternative to Sport-Rollers (can be loaded higher due to its lids) - Symmetrical shape allows use on right or left side - Ideal as "small" rear panniers for children's or youth bikes - Simultaneous use of Ortlieb Travel-Biker possible - Possibility to attach the Ortlieb carrying system - Highly reflective Scotchlite reflector - Easy to clean inside
$250.00
You're lookin' at the Surly Big Dummy Bag Version 2.0. Just like the original, it's designed to work with Dummy-style rail systems found on cargo bikes like our Big Easy, Big Dummy, and Big Fat Dummy. We've made it easier to install, simpler to use, and refined its size and shape to better suit the stuff we haul most often. The sequel is slightly smaller, but you can still cram two full grocery bags in there on shopping day. Three if you like your potato chips pulverized. The Big Dummy Bag features an expandable cargo flap and side panels that can lie flat or cinch up to accommodate loads of varying dimensions. It also has two sizeable inner pockets with a dedicated divider so you can keep your legal documents tidy. It's furnished with adjustable daisy chains, straps, and buckles to help you secure bulky shit that may not fit otherwise, as well as three stainless steel drainage ports so you can hose it out after hauling your compost to the dump. Lastly, the bag's main body is tough 1680D nylon and its liner is 400D nylon. The material is also bluesign® Approved. So are the buckles and other hardware. This means the materials are sustainably produced to have the lowest possible impact on humanoids and our environment. - 22.5L capacity per bag
$229.99 - $249.99
Bike security gets smart. The use of innovative technology, combined with maximum mechanical security, makes the 770A SmartX the most secure bike lock in its class. Enjoy the benefits of the innovative SmartX cylinder and make your iOS or Android smartphone your individualized key. Combined with the proven 100dB alarm, this lock offers maximum security for high-quality E-bikes and load-carrying bicycles. - 13mm hardened square shaft parabolic shackle - SmartX locking system with Bluetooth—high-quality, keyless locking offers user-friendly operation - Alarm function with at least 100 dB for 15 seconds followed by automatic reactivation - 3D Position Detection—detects vibrations and the smallest movement in all three dimensions and triggers the alarm - Smart alarm—the lock only emits a small warning beep in the event of minor and brief vibrations, e.g. if a football bounces nearby - USB-C port - App connection - Location storage of the bike's last parking location - ABUS power cell technology offers the highest level of protection against impacts and attempts to break open the lock - The shackle, the housing and the locking mechanism's load-bearing parts are manufactured from specially hardened steel
$249.99
Bike security gets smart. The use of innovative technology, combined with maximum mechanical security, makes the 770A SmartX the most secure bike lock in its class. Enjoy the benefits of the innovative SmartX cylinder and make your iOS or Android smartphone your individualized key. Combined with the proven 100dB alarm, this lock offers maximum security for high-quality E-bikes and load-carrying bicycles. - 13mm hardened square shaft parabolic shackle - SmartX locking system with Bluetooth – high-quality, keyless locking offers user-friendly operation - Alarm function with at least 100 dB for 15 seconds followed by automatic reactivation - 3D Position Detection – detects vibrations and the smallest movement in all three dimensions and triggers the alarm - Smart alarm – the lock only emits a small warning beep in the event of minor and brief vibrations, e.g. if a football bounces nearby - USB-C port - App connection - Location storage of the bike's last parking location - ABUS power cell technology offers the highest level of protection against impacts and attempts to break open the lock - The shackle, the housing and the locking mechanism's load-bearing parts are manufactured from specially hardened steel - Security Level: 15 - Locking type: key - Carrier: USH with bracket - Length: 9-inch
$219.99 - $249.99
The Klic Floor Pump effortlessly adapts to your needs with a magnetic quick-connect interface. The hidden hose with integrated gauge stores neatly away in the pump body when not in use, and can be used separately as a standalone tire pressure gauge. The optional burst tank installs or removes in seconds, and can be used either separately or integrated for installing and inflating tubeless tires with ease. - Burst tank can be pressurized to install and inflate tubeless tires - Tank is removable for easy transport - Hidden hose stores neatly in the body of the pump
$249.99
Make every ride count with Edge 130 Plus. Never stop cycling with this compact GPS bike computer. Whether you ride to explore new trails or to save the planet in your daily commute, go with Edge 130 Plus. - No more excuses. Wirelessly sync workouts right to your Edge device. - Are we there yet? The ClimbPro feature helps you gauge your effort on a hilly route. - Know where to go. Thanks to easy-to-follow navigation with turn prompts. - Extra awareness and incident detection. Peace of mind for you and your fans back home. - Stay in touch while you’re on your bike with a variety of connected features. - Get more from every charge — up to 12 hours of battery life in GPS mode. In the box: - Edge 130 Plus - HRM-Dual - Standard Mount - USB cable - Tether - Documentation
$249.95
Perfect for taking to races and rides, the Portable Workbench is a bench that folds for easy transport and storage. It features a large work surface with specially sized slots, holes, and recesses and for holding tools, shop towels, lubes, beverages, etc. The folding steel legs provide a solid base for a toolbox and supplies, too.
$249.95
Rear mounted child bike seat providing comfort and style for everyday rides. - Soft and shock-absorbing foam seat that lets your child travel in comfort - Adjustable footrests and footstraps ensure a perfect fit as your child grows - Available in frame, rack, and front versions - The seat can be mounted and dismounted from the bike in seconds with the universal quick-release bracket, making it easy to switch between different bikes - Smooth, comfortable ride for your child due to the DualBeam suspension system that absorbs road shock - Built-in reflector and safety light attachment point for increased visibility - Childproof safety buckle secures your child quickly and easily - Adjustable padded 5-point safety harness for a safe, custom fit and maximum child comfort - Water-repellent materials make the seat easy to clean and to keep dry - High quality metal lock that secures the child bike seat to your bike included
$249.95
Lightweight and stylish for premium comfort. The child bike seat for maximum child comfort, with custom fit and convenient magnetic buckle Thule Yepp Nexxt Maxi is a lightweight and safe rear frame-mounted child bike seat with a contemporary design, providing premium comfort for your child. It makes mounting easier than ever, thanks to the innovative mounting possibilities that make it possible for the seat to be mounted on most bikes without a bike rack. The magnetic safety buckle quickly and easily secures your child to the seat. Features: - Lightweight yet sturdy seat combining a hard outer shell with soft padding for premium child comfort - Available in frame rack and front versions|Universal rack mount system for quick and easy mounting of the child bike seat on your bike - Adjustable footrests and foot straps ensure a perfect fit as your child grows - Soft and shock-absorbing seat that lets your child travel in comfort - Adjustable padded 5-point safety harness for a safe custom fit and maximum child comfort - Added visibility thanks to built-in reflector - Water-repellent materials make the seat easy to clean and keep dry
$249.95
Smart and functional child bike seat with a personality, designed for everyday rides. Dedicated click-in mounting system for MIK HD bike racks. - Dedicated click-in mounting system for MIK HD bike racks - Soft and shock-absorbing foam seat that lets your child travel in comfort - Adjustable footrests and foot straps ensure a perfect fit as your child grows - Built-in reflector and safety light attachment point for increased visibility - Childproof safety buckle secures your child quickly and easily - Adjustable padded 5-point safety harness for a safe, custom fit and maximum child comfort - Water-repellent materials make the seat easy to clean and keep dry - Designed and tested for children from 9 months* to 6 years old, up to 48.5 lbs/22 kg.* Consult a pediatrician for children under 1 year old.
$249.95
HAJKER is a great waterproof adventure daypack, with a roll top opening and plenty of smart storage solutions. The pack is made for highspeed activities and is equipped with our bounce free No Dancing Monkey 2.1 harness system and waist support belt that makes the pack stay put on your back without cramping your style. - Zero bounce with No Dancing Monkey 2.0 + Snug Me – Harness developed and tested with top athletes to give you the perfect fit with no compromises, with absolutely no bounce. - NDM Buckle-Technical buckle for a more secure closure and a better fit. - 2-in-1-The waist belt can be used on its own, perfect as a lightweight hip-pack for short rides - Waterproof – Roll top opening to keep your gear safe from all kinds of weather. - 30L of total storage – fit everything you need for a full day of adventure WATERPROOF HIKING DAYPACK FOR THE BIG ADVENTURES The Hajker is the optimal hiking day pack with a big 30L main compartment with a roll top and an inner dry sack, waterproofing your gear for all kinds of weather. Store the stuff you need quick access to in the two zippered side pockets and compress it all together from the outside to get slimmer profile and a stable backpack that doesn’t bounce when you are out exploring, climbing, or running in the roughest terrain. The waist belt secures the lower part of the backpack and can also be detached and used on its own, like a hip-pack. You also got a helmet carry system that detachable and stored in a pocket when not in use. The pack also comes with an insulated water bladder pouch if you ever want to add a hydration bladder with the pack (bladder not included).
$193.86 - $246.43
Incredibly compact set arrangement with many tools in a minimum of space. A completely new ratchet set feeling thanks to the unique textile boxes that are very robust and durable. They can be positioned upright for tidy storage on the workshop shelf. Additional surface protection due to textile outer material. Low weight and volume for simpler mobility. - Freely pivoting ratchet head with 5 predefined locking positions - Fine toothing with 72 teeth - Small return angle of only 5 degrees - Free-turning sleeve for high working speeds - Take-it-easy tool finder: color coding by size
$245.00
Behold the Trail Evo. Outbound Lighting's flagship light, the sum total of their decades of experience designing automotive optics, all neatly wrapped up in the best bike light They've ever engineered. Think of this as harnessing the sun to your mountain (or gravel) bike. An amazingly wide beam pattern with a balanced carpet of light from the front of your tire to where you are looking. Giving you the sensation of riding in daylight. Zero wires, long battery life, USB-C rapid charging, simple interface, a robust and easy to install quick release mount. What more could you want? Backed by years of automotive lighting experience, built in Chicago, IL, and a generous 3-year warranty (with an extended "don't-be-a-jerk" policy) that covers everything, including gnarly crashes, as long as you have a great story behind it! Adaptive Mode
What is adaptive mode? Nothing too fancy, it is just the default mode when the light is turned on. It stays on high for about 5 minutes, and over the course of 30 minutes it will very slowly reduce brightness to medium mode while your eyes ADAPT to the darkness. Letting you get more runtime, without noticing a thing by tricking your brain. All other modes are solid output so you know what you are getting at any time. Adaptive 2.6 h (155 min) High 1.7 hr (104 min) Medium 4.2 hr (250 min) Low 8.5 hr (500 min) Daytime Strobe 10 hr (600 min) Nighttime Flash 4.5 hr (270 min)
$240.50
Bosch Aftermarket Kit Smartphone Hub, with 1500mm DU-cable, Universal Mount and Compact Remote and Mounting Parts. The SmartphoneHub transforms your bike into a fully networked eBike. The smartphone and COBI.Bike app turn the SmartphoneHub into an intelligent control center that can be used for navigation, recording activities, and connection to other. The eBike can also be ridden without a smartphone due to the integrated display in the SmartphoneHub, showing the most important riding data. - The SmartphoneHub and the COBI.Bike app connect the eBike to the digital world and allow for navigation, music streaming, fitness tracking, and integration of other services and apps such as Strava - A 1.52-inch display allowing for use without a smartphone - The COBI.Bike app gives eBikers a permanent overview of the most important training data. such as performance, cadence and calorie consumption - The COBI.Bike app allows access to music and audiobook streaming services, such as Spotify or Audible, which can be operated by remote control - The SmartphoneHub charges phones using the eBike battery - Walk assistance function helps you push your eBike at speeds of up to 6 mph
$240.00
High visibility is so important to us at Ortlieb because it is a matter of safety. Both the waterproof, polyurethane-coated Cordura fabric in neon yellow and the black fabric parts of this bag are densely interwoven with high-luminosity reflective yarn. This composition turns the entire bag into an eminently visible reflector when it is picked up in the headlights of passing cars. The waterproof Sport-Packer is perfectly suitable as lowrider pannier in the front, "small" rear pannier or for children's bikes. The QL2.1 fixing offers quick and comfortable singlehanded mounting to the rack. - Classical pannier (pair) with roll closure in bright reflective color - QL2.1 mounting system for racks with max. 16 mm tube diameter - Reduction inserts for tube diameters 8, 10 or 12 mm with anti-scratch function preventing abrasion on the rack - 20 mm hook available as separate accessory (e.g. for E-bikes) - PVC-free reflective fabric - Increased visibility when hit by headlights due to highly visible reflective fabric in neon yellow and black - Can be used individually or as pairs for the rear or front rack (low-rider) - Including integrated inner pocket and shoulder strap - Ideal for use on children's/youth bicycles - Highly reflective 3M Scotchlite reflector - Can be easily cleaned inside
$210.00 - $240.00
Backpack or pannier? With the versatile and innovative Vario PS, you no longer have to ask yourself this question. Featuring our Quick-Lock attachment systems on one side and a padded carrying system with chest strap and ergonomic shoulder straps on the other, The Vario PS transforms from backpack to pannier faster than ever before. A so-called Flap with an integrated pocket covers the side that is not in use. And for any items that you need quick access to, there is a zippered outer pocket. Everything else can be accessed via the practical and proven roll closure, including your laptop for which a padded compartment is provided. This waterproof hybrid bag is PVC-free and sustainably manufactured in Germany. Further features: - Reflectors - Reflective yarn in the shoulder straps - Mesh outer pocket on the side
$240.00
The Salsa EXP Series Anything Cradle is a bracket-mount handlebar roll system that holds gear in front of your handlebars without kinking your cables. This modular system is designed around our EXP Series Top-Load Dry Bag, which maintains a fixed width for loading with ease, or you can use your own dry bag. The Anything Cradle allows you to distribute your gear evenly—an essential part of any well-balanced bikepacking setup. - Kit includes Anything Cradle, Top-Load Dry Bag, EXP Series Front Pouch, and two 30" Salsa EXP Series Rubber Straps - EXP Series Anything Cradle Top-Load Dry Bag is fixed-width for easy loading - Salsa EXP Series Rubber Straps are made of non-slip TPU to hold gear securely - Works with or without EXP Series Anything Cradle Front Pouch - Anything Cradle Dry Bags feature a welded seam construction with waterproof materials and hook-and-loop straps for easier installation - Anything Cradle Front Pouch uses water-resistant fabric with welded seams for weather protection - Anything Cradle Arms are compatible with 35.0mm handlebars or 31.8mm handlebars (with included shim) - Nylon 6/6 composite cradle, 6061 forged aluminum arms - Maximum load weight: 8 lbs. (3.6kg)
$239.00 $349.99 32% Off
Whether you want to attend a group ride in Zwift, climb the Dolomites in Rouvy, or simply need a sweat session, the M2 smart trainer can get you there. All you need is your bike, the M2, your favorite virtual training software, and device of choice. This do-it-all, smart bike trainer is capable of replicating any workout thrown its way, up to 1500 watts and a 15% climbing grade. Simply connect to your virtual training application of choice via integrated dual-band ANT+ FE-C and Bluetooth, and let the M2’s electromagnetic response system do the rest. And, thanks to integrated speed, cadence, and power data, you can track and record performance data without extra external sensors. Plus, our innovative clutch knob ensures perfect tire-to roller connection for every single ride. - Noise level is a quiet 69 decibels at 20 mph. - PowerTuned using PowerTap technology for accurate power readings up to +/- 5%. - This trainer is designed to fit common road and mountain bike frames with included steel quick release skewer and has three settings for rear dropout spacing: 120mm, 130mm, and 135mm. - Optional thru-axle adapter available for 142x12mm and 148x12mm. - Integrated dual ANT+ FE-C and Bluetooth standards. - Fast response electromagnetic resistance ensures most responsive resistance and maximum power available. - Robust design is capable of handling up to 1500 watts at 20 mph and can simulate up to a 15% climbing grade. - Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2. - Internally integrated speed, cadence, and power data eliminates the need for extra external sensors. - LED indicator lights communicate connectivity and more. - Internal cooling system moves air through the trainer to keep it cool while active thermal sensors ensure accurate performance data even during the hardest of workouts. - Comes on the Saris foldable Classic frame with spring loaded, bolt-action lever. - Features clutch knob for perfect roller to tire tension each ride. - 2" resistance unit roller allows for 650b, 700c, 26", 27", and 29" - up to a 2.0-inch tire. - Does not fit 650c wheel sizes, nor all 29er tires. - Precision-machined alloy roller reduces tire wear and slippage. - Eccentric leveling feet allow for easy adjustment on uneven surfaces. - Trainer tire recommended - Compatible with a wide variety of devices and virtual training applications, including Rouvy, Zwift, TrainerRoad, and many more. Contact us with questions about compatibility with other software. - Over the air (OTA) firmware updates via Bluetooth devices ensures the M2 is up to date. - Some assembly required - All of our trainers are tested to the combined weight (rider and bike) of 300 lbs. - ANT+ and BlueGiga USB dongles sold separately - Not compatible with CycleOps- or Saris-branded 20/24" wheel adapter
$235.60
This single e-bike light is an extremely light and compact unit, making it perfect for both fast road cycling and commuting. It automatically adapts to 6V or 12V voltage so it is compatible with most motors including Bosch, Brose, Shimano, and Yamaha systems. - Up to 1400 lumens depending on battery and motor combination
$233.12
Park's adjustable linkage shop clamp is found in more shops than any other professional level clamp. The 100-5C features solid cast aluminum construction and durable replaceable clamp covers. Clamp has reliefs on both jaws for cable routing, and feature replaceable jaw covers. - Fits PCS-4, PRS-5, PRS-6, and PRS-7 stands made after 6/96 - Fits bike frame tubes from 1" to 1 5/8" (25mm to 41mm) - The clamp jaws are nominally 4 inches (10cm) wide - Uses 468B jaw covers
$233.08
The 2197 is an add-on accessory for the Park Tool DT-5 and DT-5.2 Disc Brake Mount Facing Set to enable easier and more efficient facing of disc brake mounts on carbon fiber frames. Features a brazed-on diamond grit surface that is over 100 times more durable and effective on carbon fiber than the cutter included with the DT-5.2. The 2197 sits between the cutter of the DT-5.2 and the brake mount, and smoothly and evenly grinds the mounting surface until it is flat and properly perpendicular to the rotor. NOTE: The 2197 is intended for facing carbon fiber only. Aluminum, steel, and titanium disc brake mounts should be faced using the #2171 facing cutter included with the DT-5.2. For carbon frames that feature aluminum inserts (with a carbon/aluminum hybrid mounting surface), use the #2197. When machining carbon fiber, regularly apply water (or a similar solution) to the cutting surface.