Parts & Accessories

- CNC machined AL6061 alloy Garmin/GoPro stem mount - Mounts to a stem's faceplate by means of two included M5 x 18mm stem bolts - Compatible with Garmin Edge 200, 500, 510, 520, 800, 810, 910, 920, and 1000 - Accepts GoPro mounting style compatible accessories

- Dual-band Bluetooth and ANT+, magnetless sensor with integrated accelerometer - Quick pairing with CatEye Cycling app (Bluetooth) - Waterproof IPX7 (based on JIS C0920) - Works with Padrone Digital, Padrone Smart+, Padrone Smart*, and Strada Smart* *For Padrone Smart and Strada Smart, works in Mirror Mode only

- Use to keep Blips in place on handlebars - Fits 31.8mm round portion of drop bar - Clamp mounts directly to bar outside of tape zone - Ideal for use with thumbs or index fingers while hands are on the tops - Right and left specific, just like Blips - Weight: 12 grams (for pair) - Material: Polypropylene - Compatibility: 11-speed - Recommended Group: SRAM RED eTap

Mount your Garmin Edge computer with the Quarter Turn Bike Mount. It includes the bike mount, rubber disc, and elastic bands to secure the Quarter Turn to your stem or handlebars.

- Control Center computer mount for any 31.8mm handlebar - Dual clamps provide superior holding power, excellent for GPS units

The K-EDGE Gravity Top Cap is a great computer mount for those mountain riders that already a lot going on with the cockpit of their bikes, or just want a simple and sleek looking computer mount. The Top Cap replaces your already existing top cap with the K-EDGE Gravity top cap. Ideal position for Downhill and Enduro racing/riding, but is also a popular solution for any bike when using a smaller style computer (20, 25, 200, 500, 510, 520, 820). - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Garmin Specific Co- Polymer Interface - Compatibility: All Garmin Edge® Computers including the 1030*, 1000*, 820, 810*, 800*, 510, 520, 500, 200, 25, 20. Also supports the Touring, Touring Plus, Forerunner 310XT, and 910XT. (Larger EDGE computers such as 800, 810, 1000, 1030 may interfere with very steep, upright, stem angles.) - Made in Boise, Idaho, USA. - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

The K-EDGE Garmin Stem Mount is a great upgrade solution for cyclists who prefer their computer above the stem. Mounting off of the steerer tube, the mount replaces a standard 5mm spacer, and is locked securely in place by the top cap compression system. The fixed version is recommended for zero degree or negative degree stem angles. Can also be used with positive degree stems if additional spacers added (5mm to 10mm) above the stem. Designed with mountain biking in mind, the K-EDGE Stem mount is also ideal for much more including: cyclocross; triathlon; bike touring; or if you simply prefer this position for your computer. - Compatibly – 1-1/8" Steerer tube Diameter, Thickness (@ Steerer) – 5mm, Length (Center-to-Center) – 50mm, - Recommended for 0 Degree to Negative Degree Stem Angles - Supported Computers – Garmin Edge 20, 25, 200, 500, 510, 520, 800, 810, and Forerunner 310XT - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

Convert your K-Edge Garmin Computer Mount to be a Computer + Action Camera combination mount. Works with any camera that utilizes the GoPro sytle interface, including GoPro Hero, Garmin VIRB, and Shimano CM-1000. - Camera Adapter mount with GoPro style interface - Fits K-EDGE Garmin Mounts (K13-500, K13-505, K13-560) - Locks GoPro, Shimano, VIRB style cameras underneath Garmin Computer. - Centers camera in out of site position - Improves video clarity by removing plastic mount shake - Colors: Anodized Black - Weight: 14grams *Note: Garmin VIRB requires the GoPro adapter that is included in the box with the VIRB.

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 6mph

Bosch SmartphoneHub USB Cap, For protecting the bearing L1 und L3 on the drive unit. 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

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

- Shift buttons mounted to the end of a bar plug - Included wire connects to Blip Box - Fits bars with 19 - 20.5mm inside diameter

The strongest K-EDGE Mount yet, designed for today’s heaviest computers, cameras and lights. Upgrade to the Garmin Max Combo mount for a solid and clean platform for your cycling electronics. Chosen by the best, year after year, when quality, performance and craftsmanship matter. - Max combo mount is compatible with GARMIN Cycling Computers smaller than EDGE 1000, 1030 style (example EDGE 820) - Combo Mount (Computer on top – light or camera underneath) with GoPro style light/camera interface - GARMIN approved replaceable computer insert protects computer tabs - CNC Machined Aluminum, Anodized Black with laser etched logos - Made in-house, Boise, Idaho USA with a Lifetime Warranty - Weight: 60g

Monitor your pedaling cadence as you ride with this easy-to-install wireless sensor. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes. Simply attach the sensor and ride. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes.

CatEye's Out Front Bracket frees up your handlebars and positions your favorite CatEye computer just in front of your stem for optimal viewing and accessibility.

- Discreet way to install an Apple AirTag inside your tubeless tire - Identify the location of a stolen bike, enabling the owner to alert local authorities for retrieval - AirTag is housed in a 3-part silicone and rubber tubeless valve mount - Sacrificial stem, ensures tracker and rim protection under impact - Silicone top cover protects tracker and internal plug reduces sealant ingress - Supplied with 3 pairs of our rubber valve bases to suit different rim profiles for the optimum seal - Note the Tubeless Secure Tag Holder can only be used in rear wheels – not for use on the front wheel Compatible tire types: - MTB tyres (XC, Enduro Trail, Downhill) - Gravel Tires (the narrowest recommended tyre size is 38mm wide)

Cutting edge aerodynamic and lightweight mount 3D Printed in Titanium compatible with all Garmin and Wahoo computers (except bolt v1). T-Tray mounting system makes for a removable mount for lights, cameras, and more! - Standard: 9 – 30mm - Wide: 23 – 40mm

Easily integrated Designed specifically for specific Bontrager Circuit MIPS road bike helmets, the Blendr mount easily integrates Bontrager Ion lights and GoPro cameras. - Quickly mount rear light to the back of your Bontrager Circuit MIPS road bike helmet - Tested with an accelerometer for intended breakaway point if involved in a crash

Cadence Magnet for all CatEye computers that record cadence.

The TPH-1 Tablet Grip from Minoura is the ultimate tablet holder for indoor training. Fitting a diameter between 28mm and 35mm, this stand will fit most bicycles. - Perfect accessory to use with LiveTraining Apps, The Sufferfest videos, or other media - SM clamp easily mounts or dismounts from the handlebar or tube - Spring-loaded clamp system is simple to use and securely holds your device in place - Holds from a 7.9 to 9.7 inch screen with 360 degree rotation system - Can mount to your repair stand so you can easily reference the Internet when working on your bike

- CNC machined AL6061 alloy GoPro mount for handlebars or seatposts - Accepts GoPro mounting style compatible accessories - GoPro mount rotates 90° for ideal positioning of accessories - Fits 22.2mm, 25.4mm, and 31.8mm handlebars with included adapter - Fits 27.2mm, 30.9mm, and 31.6mm seatposts with included adapter

This NiteRider Adapter is sold separately from K-EDGE “Combo Mount." - Precision Machined 6061-T6 Aluminum - Anodized Gunmetal - Converts a NiteRider Rail Interface to adapt K-Edge GoPro Mounting Interface - Enables compatibility with K-Edge GoBig Mounts and Combo Mounts - 2x M4 Mounting bolts with Nylok included - Compatible with Lumina Series, Mako Series - Weight: 11.5 grams

Zipp delivers an uncomplicated computer mount for aerobar extensions that’s easy to install, lightweight, and vibration and slip free. The 22.3mm industry standard mount installs simply and securely on aero extensions. The Zipp QuickView TT Computer Mount is aerodynamically shaped for left-side installation, but also can be installed on the right bar extension. It comes with a single Torx T25 bolt, flexible mounting clamp, and a quarter-twist mount.

Replace your worn or damaged wiring on Origin8 wired computers (97517 / 97570) - Includes bracket with (155cm) wired sensor, screw magnet and 4 cable ties - Includes: Wiring Kit - Compatibility: Data Station 8 / 10 ** HEAD mount is HANDLEBAR mount only (not stem)

Complete 2 tasks with 1 cable using Garmin's charging/data cable. Connect the cable to your computer's USB port to recharge your compatible device and to transfer data to and from your computer. This cable also pairs with an optional AC adapter (sold separately). Compatible devices: - Approach S60, D2 Charlie, fenix 5/5S/5X, Forerunner 935, quatix 5, quatix 5 Sapphire, vivoactive 3, vivosport

OEM CR2032 3V Lithium Battery used in most CatEye cycle computers.

Constructed from a high quality proprietary polymer blend that is super durable. - Securely locks and perfectly positions your computer - Fits 31.8, 25.4 & 22.2mm handlebars - Simple one-bolt design makes installation a breeze - Compatible with Garmin Edge 20, 25, 130, 510, 520, 530, 810, 820, 830 & various other cycling computers - Not compatible with Edge 1000 series

Constructed from a high quality proprietary polymer blend that is super durable. - Securely locks and perfectly positions your computer - Fits 31.8, 25.4 & 22.2mm handlebars - Simple one-bolt design makes installation a breeze - Compatible with Wahoo Elemnt, Elemnt Mini, Elemnt Bolt and Elemnt Roam - Also compatible with Pioneer computers

The X-Mount series securely holds any phone with any case and offers a minimalist profile. - Proprietary stretch materials grip your phone on all 4 corners

The SuperBand is a tough, lightweight, and simple solution to attach virtually anything to your bike. - Fits all size smartphones with or without a case (iPhone 10/X, 11, X plus, 7, plus, 8 plus, Samsung Galaxy, Samsung Note, Google Pixel 2, Google Pixel 2 XL, OnePlus, etc.) - Easily holds down small items such as a light jacket, sunglasses, energy bars, pump, tubes, C02 cartridges, water bottle, flashlight, Bluetooth speaker, etc. - Easily attaches to the top tube, stem, or seat post using durable rubber O-rings (2 sizes included) - Can be attached to the water bottle bolts or a separate water bottle bracket - Use on a bicycle, golf cart, stroller, ATV/UTV

Stay ahead of the pack with this extended out-front bike mount that lets you take full advantage of your Edge without compromising your ride. This mount with extended arm allows you to stay in a comfortable heads-up position for easier monitoring and improved safety.

The QuickView was designed to put the Garmin Edge Computer out in front of the stem. Fits Garmin 605 and 705. - Glass-filled nylon, stainless steel Torx T25 bolt - Weight: 20g

The K-EDGE Gravity Cap is a great computer mount option for those riders that already a lot going on with the cockpit of their bikes, or just want a simple and sleek computer mount. The Gravity Cap replaces your existing top cap and is ideal for Downhill, Enduro, Gravel, Touring, etc. - CNC Machined 6061-T6 Aluminum - Injection Molded Copolymer Interface - Compatibility: Wahoo ELEMNT - Lifetime Warranty - Weight: 18g - Anodized Colors: Black

Misuro B+ is the perfect sensor to enhance your training sessions with Elite home trainers and rollers. This ANT+ and Bluetooth Smart Speed/Power/Cadence sensor monitors indoor training sessions via smartphone, tablet, cycle computer, or compatible GPS devices when installed on an Elite trainer. - Reads data based on the type of trainer used. - Uses ANT+ and Bluetooth Smart protocols that are compatible with many devices. - When paired with the My E-Training Software, it turns your Elite trainer into an advanced digital instrument that displays and manages fundamental training data.

Versatile and clever The Nyon is the perfect companion for embarking on your fully connected eBike experience. Nyon connects to your smartphone with the eBike Connect app and exchanges data about routes and activities. The color display serves as an intelligent guide when you are exploring new places and as your personal trainer by providing you with fitness data. The touch screen makes the all-in-one computer both intuitive and easy to use and is operated using the separate control unit during your ride. Whether you're using your eBike for long rides or short everyday trips, the robust, easy-to-read display ensures that you are ready for all requirements and weather conditions. The Nyon computer – for a smarter, more intuitive and connected generation. This is what Connected Biking feels like. Simple operation A convenient option: Nyon is intuitive to use thanks to the touch screen function and can be operated using the separate control unit during your ride. Award-winning design Impressive both inside and out: The 3.2-inch high-resolution color display combines smart functions with an elegant design that has won a Red Dot Design Award. Easy to read A clear view in any light: The display brightness and backlight automatically adapt to the ambient light. A special coating reduces glare and finger marks. You can choose between a dark and a bright display with maximum contrast. Individual screens Focus on the essential: You can customize the user interface of the display to suit your specific requirements. This gives you a clear view of the information that you need at all times. Always ready for action Whatever the weather: The touch screen of the robust display remains fully functional even when exposed to rain or dust and can be operated while wearing bike gloves. Savings Screen If you want to find out how much you could save by choosing to use your eBike instead of a car, check out the info on the new Savings Screen. This is activated in the screen management settings. You can also see a comparison of the current and previous weeks, or choose a different currency in the settings. Smart connectivity functions Perfectly connected: Nyon is part of an intelligently connected system and opens the door to the connected eBike World of Bosch thanks to the eBike Connect smartphone app and an online portal. Data synchronization Constant communication: As soon as Nyon connects to your smartphone or Wi-Fi, the computer connects to your eBike Connect account and automatically synchronizes the riding data. Choose your ideal position Optimum position: To ensure the best possible readability, the display mount has two installation positions. The center mounting position above the handlebar is designed to meet the needs of eMTB riders, while tour riders can place the mount further forward. One device, several users One for all: You can share your Nyon with friends or family – everyone can then synchronize their riding data with their own account. Software updates Always up-to-date: Software updates or new maps can be conveniently downloaded and installed over the air.

This mount integrates with your Quick-Release Aerobars by attaching directly to one of the aerobar handlebar clamps and provides and out-front section of bar for attaching computers or other accessories. Benefits: - Positions your computer for easy viewing in road or aero riding positions - Stays attached to your bicycle when aerobars are removed Details: - Provides two mounting heights and 3 positions to fine tune your computer's position - Integrates with the optional Water Bottle Mount, putting all your essentials at your fingertips - Includes all necessary mounting hardware

Garmin's ANT+ USB stick plugs into your computer's USB port to wirelessly transmit your activities to Garmin Connect and Garmin's Training Center. It automatically receives your activity data when your compatible ANT+ Garmin device is within range.

The K-EDGE co-polymer insert for Garmin 1/4 Turn style computers is a replaceable item. While it is extremely strong, we designed this insert to fail on a significant impact before the tabs on the back of the Garmin break. - Qty 1 – K-EDGE Co-polymer Insert for Garmin 1/4 Computer (Part No. K13-503) - Qty 2 – M3 x 0.5mm x 6mm with Pre-Applied Nylon 180,18-8 S.S. Screws

ShockWiz is a suspension tuning system for air-sprung mountain bikes that combines high-tech hardware with an intuitive smartphone app. It's lightweight, durable and powered by a long-lasting coin cell battery, ShockWiz automatically records and evaluates suspension performance every time you ride. The ShockWiz app displays straightforward adjustments that unite bike, terrain and riding style. ShockWiz works for all mountain bike riders, regardless of their experience or bike's intended use. It works on hardtail and dual suspension bikes, and for all levels of skill, speed, and terrain. With ShockWiz, you know exactly how your suspension is performing – and how to make it better. Features & Benefits: - Automated tuning recommendations - Shock tuning score - a snapshot of how well your suspension is set up for you - Works on hardtail and dual suspension bikes. Works for Cross-Country, Trail, All Mountain and Downhill. - Inexpensive, replaceable CR2032 battery lasts for months - Waterproof and dustproof - IP67 rating - Two alternative hoses (included) offer a range of fitting options - Smartphone app is compatible with Apple and Android phones Essential Details: - ShockWiz is designed for all mountain bike riders, regardless of your experience or bike's intended use. - You can tune for every riding style: Efficient (pedaling), Balanced, Playful or Aggressive. - Advice for air pressure, spring rate, compression and rebound is displayed in the intuitive smartphone app. - In the box: ShockWiz hardware, two hoses, rubber mounting boot and zip ties.

- Di2 internal battery, fits all e-Tube Di2 groups - Capacity: 500 mAH (± 2000km) - Use with EW-WU101 or SC-MT800 interfaces/junction to gain BlueTooth Smart wireless connectivity for on-the-fly adjustments with smartphones and tablets - Requires SM-BCR2 charger

It’s got your back while you ride ahead. Varia™ eRTL615 rearview radar for eBikes is our first battery-free radar. It plugs directly into your compatible eBike. It detects cars approaching from behind and provides audible and visible alerts when paired with your compatible Garmin smartwatch, bike computer or even your smartphone with the Varia™ app. This radar also has a bright tail light to make you more visible to motorists, adding peace of mind to every ride. And since you don’t have to charge it between rides, that’s one less thing to worry about.

Easily mount a cell phone and case directly to your bars for safe convenient access with the Insta-Mount and keep all of your favorite cycling and fitness apps safely accessible. • Mount your hard-shell smart phone case to your bike • Allows for easy access of phone on stem or handlebar • Includes Insta-Mount, universal mount, and application grid • Blendr-compatible

SRAM eTap batteries are literally a snap to remove and charge. Just flip the tool-free battery latch up and slide the battery up and out of the derailleur. Then snap the battery into the USB powered charger and connect the charger to any USB power source or A/C USB adaptor. A full charge takes just 45 minutes to complete. - Finish: Black - Compatibility: SRAM RED eTap

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

- Compatible with Super Record, Record, and Athena EPS systems - Required for use with the charger and works with V2 systems - USA/North America plug - adapters required for other countries

- CNC machined AL6061 alloy Garmin stem mount - Mounts to a stem`s faceplate by means of two included M5 x 18mm stem bolts - Compatible with Garmin Edge 200, 500, 510, 520, 800, 810, 910, 920, and 1000

Your tires are the only thing connecting you to the road or trail, and having optimal tire pressure can have more impact on ride comfort than both frame and wheel choice combined. But finding the right tire pressure requires trial and error. TyreWiz for Moto is the first-of-its-kind tire pressure sensor for Zipp 3Zero Moto wheels and takes the guesswork out of finding that optimal tire pressure. Lightweight and durable, TyreWiz adds only 10 grams to your tires. With an IPX7 waterproof and dustproof rating, you can confidently ride on any type of trail and know that your tire pressure sensor will keep going strong. TyreWiz reports data with +/-2% accuracy at a resolution of .1 PSI; vastly more accurate than any tire pump on the market. TyreWiz monitors the air pressure in real-time and relays the data to a cycling computer or a smartphone. That information is relayed to the SRAM AXS app and delivers personalized recommendations and pressure alerts. TyreWiz gives riders access to highly accurate, real-time tire pressure data to make decisions that can affect rolling resistance, traction, tire wear, and rider comfort. Features - Data reported with +/- 2% accuracy at .1 PSI resolution. - Only compatible with Zipp 3ZERO Moto wheels. - Inexpensive, user-replaceable CR1632 battery lasts for 300 hours. - IPX7 dustproof/waterproof rating.

Accessory Mount from Cane Creek.

Handlebar computer mount for Garmin/Wahoo for Vuka Shift AXS

Mount your Varia Rearview Radar or Varia Smart Bike Light (each sold separately) to an aero or round seat post with this quarter-turn mount. Includes mount, 2 fitting shims and 4 O-rings.

• Fits head & derailleur tubes to mount accessories on a USS (under-seat steering) recumbent

Stay ahead of the pack with Garmin's Out-front Bike Mount that lets you to take full advantage of your Edge's capabilities without compromising your ride. The mount positions your device for easier monitoring and safety. Also compatible with the Forerunner 910XT and 310XT when used with a quick-release kit (sold separately).

Wheel magnet for all CatEye cycle computers

With the new FAZUA 12V Car Charger, the FAZUA Battery 250 and 250 X can now also be conveniently charged in the car while on the move. For the power supply, the 12V Car Charger can be connected either to a suitable on-board power socket (in accordance with DIN ISO 4165) or to a cigarette lighter. - Charging time 3-4 hours - For Battery 250 and 250X

Heavy-duty harness for Miniac 7-function computer.

CatEye's Bluetooth Speed/Cadence Sensor transmits your speed and cadence through your Bluetooth-compatible Smartphone to your handlebar-mounted CatEye Strada Smart cyclo-computer (sold separately). Download the CatEye Cycling app for iPhone/Android and you’ll get all your ride data and save your phone battery. Attack each ride and celebrate your successes on the bike!

Need to hold down your GoKASE or DriKASE iPhone case? If you have multiple bikes, an ATV, or stroller, the Xtended X Bracket will allow multiple mountings with GoKASE or DriKASE iPhone cases. • Fits handlebar diameters 22mm to 34mm

- Discreet way to install an Apple AirTag inside your tubeless tire - Identify the location of a stolen bike, enabling the owner to alert local authorities for retrieval - AirTag is housed in a 3-part silicone and rubber tubeless valve mount - Sacrificial stem, ensures tracker and rim protection under impact - Silicone top cover protects tracker and internal plug reduces sealant ingress - Supplied with 3 pairs of our rubber valve bases to suit different rim profiles for the optimum seal Note the Tubeless Secure Tag Holder can only be used in rear wheels – not for use on the front wheel Compatible tire types: - MTB tyres (XC, Enduro Trail, Downhill) - Gravel Tires (the narrowest recommended tyre size is 38mm wide)