Parts & Accessories

Our stem mount for Wahoo ELEMNT GPS bike computers is made of lightweight, durable plastic and is a great solution for cyclists who prefer to keep their computer on top of the stem. - Fits any stem - Weight: 0.2oz - Works with ELEMNT, ELEMNT ROAM, ELEMNT BOLT, and ELEMNT Mini Note: BOLT loses aerodynamic advantage with this mount)

Our patent-pending integrated mount for the ELEMNT BOLT GPS bike computer is made of durable, lightweight plastic. It also comes with an optional locking screw that is UCI compliant for connecting your ELEMNT BOLT to your bike for weigh-ins. - Fits 31.8mm round bars - Weight: 0.9oz - Works exclusively with the newest ELEMNT BOLT

Our patent-pending integrated mount for the ELEMNT ROAM GPS bike computer is made of durable, lightweight plastic. It also comes with an optional locking screw that is UCI-compliant for connecting your ELEMENT ROAM to your bike for weigh-ins. - Fits 31.8mm round bars - Weight: 1.55 oz (44g) - Works exclusively with ELEMNT ROAM

Our integrated mount for the ELEMNT BOLT GPS bike computer is made of durable, lightweight plastic. It also comes with an optional locking screw that is UCI compliant for connecting your ELEMENT BOLT to your bike for weigh-ins. - Fits Canyon Endurance 2017 and newer models and other integrated handlebars with two underside mounted bolts between 0.70 inches (17.75mm) and 2.00 inches (50.88mm) - Weight: 0.6oz - Works exclusively with original ELEMNT BOLT

Wahoo USB ANT+ dongle Kit connects KICKR, KICKR SNAP and other ANT+ enabled devices to a Mac or PC. The 3-foot extension cord extends the USB ANT+ transmitter away from the computer and towards the connected device to avoid signal interference.

The Wahoo TRACKR SPEED sensor is the sleek, magnet-less solution for capturing cycling speed data. It easily mounts to your bike's front wheel hub, and the Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and bike computers. Tracking speed data has never been this easy.

The Wahoo RPM cadence sensor is your sleek little solution for measuring cycling cadence data. It is wireless, magnet-less, lightweight, and easily mounts to your bike's crank arm or to your shoe. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers. Collecting cadence data has never been this easy. - Both ANT+ and Bluetooth Smart capabilities allow for a wireless connection to both smartphones and bike computers. - No tangled wires on your bike to connect the sensor to your device. - It only weighs 7 grams! - Provides accurate cadence data during your ride - (1) mount with double sided 3M tape, or (2) use the silicone sleeve and mount with zip ties. - The RPM can be worn on your shoe for spin classes or use with multiple bikes - Two LED lights show the sensor's device connection (blue) and cadence detection (red) - No charging required! Operates on a coin cell battery for up to 1 years. - RPM cadence sensor will fit with most bikes and frame sizes

All you need for cycling data, all together at once! The Wahoo RPM Speed and Cadence sensors are both a sleek, wireless, and magnet-less solution. Each mounts easily to your bike and the Bluetooth Smart and ANT+ duel band technology allows you to connect and display data on both smartphone and bike computers. - Dimensions (LxWxH): 1.25" x.75" x 1" - Weight: 7 grams (without mount) - Battery: CR2032 - Battery Life: Up to 12 months - Water Rating: IPX7 (waterproof up to 5 ft) - Wireless Signal Strength: Up to 10 feet - Note: Speed Sensor is NOT compatible with spin bikes

Allows use of one Blendr mount on a Trek Madone SLR Blendr add-on to the Madone SLR bar/stem Mount light, computer, GPS and/or cameras to your top-of-the-line aero road bike - Blendr works with this simple formula: Stem + Base + Mount. Add accessory. - Bases for use with the Trek Madone SLR Aero Integrated handlebar - Add any accessory mount (sold separately) for an elegant, integrated look

Know what's coming. Ride with extra confidence with Trek CarBack Radar Rear Light. CarBack's radar helps detect rear-approaching vehicles from up to 240m and provides audio and visual alerts through paired GPS head units for increased on-bike awareness. Built with integrated best-in-class Daytime Running Lights that are visible from up to 2km away, CarBack is a must-have for every cyclist riding on shared roads. - CarBack can detect and alert riders of rear-approaching vehicles from up to 240m away - Compatible with most cycling GPS computers - Pair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphone - Designed with focus, flash, and range to be Daytime-visible from up to 2km away - Four light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5 LM - Visible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status - IPX7 waterproof rating to confidently ride through wet conditions - Includes Quick Connect Plus rear mount and USB-C charging cable

Gain more room or find the perfect position for lights, computers, music players, GPS, or whatever, with the Topeak BarXtender. Attaches securely to the handlebars or stem and adjusts for optimum position. - Clamp: Fits 22-38 mm tubes (shims included) - Crossbar: Device mount bar 25.4 mm - Material: Engineering Grade Plastic and Steel - Mount: Handlebar, Handlebar Stem - Size (L x W x H): 18 x 3 x 3 cm, 7.1” x 1.2” x 1.2” (folded) - Size (L x W x H): 13 x 10 x 3 cm, 5.1” x 3.9” x 1.2” (open) - Weight: 116 g / 4.08 oz

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

Power Spoke magnet for all Sigma computers. Fits round and bladed spokes.

Shimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/

Shimano Di2 Frame Junction Box - Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/

The Shimano EW-EC300 Charging Cable is compatible with new Shimano 12-speed road Di2 systems. This cable will also recharge the Dura-Ace R9200 and Ultegra R8100 power meter cranksets. 1700mm cable length

Shimano BT-R1A External Di2 Battery - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

Shimano Di2 Junction Box - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/ - SM-EW90-A 3-Port Cockpit Junction Box connects 1 pair of Di2 shifters to the frame junction box via 3 SD50 E-tube wires - OEM front wiring kit for Dura-Ace Di2 9070 - LED battery charge level indicator - Rear Derailleur adjustment mode - Internal Battery charging port - Includes Junction Box Band (CY9082) and Junction Box Hook (Mounting Plate, CY9081)

- 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

The new DN300 Built-In type battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs (and shifters if a fully wired option is selected). - Compatible with thinner next-generation electric wire SD300 and systems after R9250/R8150 series - Li-Ion type - Capacity: 500 mAH |3.7Wh (± 2000km autonomy) - Rated voltage: 7.4V - Charges through RD-R9250 |RD-R8150 rear derailleur using EW-EC300 Di2 Charging Cable (sold separately) - Fixing small parts included - Weight: 52g

- 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

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

SRAM eTap Battery is the power source for the eTap system. The same power unit is interchangeable between front and rear derailleurs. - Up to 1000 kilometers of riding per charge - Weight: 24g - Finish: Black - Compatibility: SRAM RED eTap

Be it the fireworks of a finale, an ideal rhythm, climbing on the top, or a deep, dark place extracting the last kilojoule of effort on your bike split, you want to adjust your gear with the twitch of a finger. eTap Blip satellite shifters allow you to shift when you want, where you want. - Limitless remote shifting positions for drop and aero bars - Wired shift buttons can be positioned however the rider prefers - Connect to Blip Box or drop bar eTap levers - Compatible with SRAM RED eTap shift/brake controls

- Mount kit for Joule 2.0 - Can be configured for mounting on handlebars or stems

- Lightweight nylon fiber Garmin handlebar mount with 90-degree rotating mounting plate - Compatible with Garmin Edge 200, 500, 510, 520, 800, 810, and 1000 - Out-front mounting position centers the computer in front of the stem - Fits both 25.4mm and 31.8mm handlebars with included adapter

- Lightweight nylon fiber Garmin handlebar mount with CNC machined AL6061 alloy GoPro mount - Compatible with Garmin Edge 200, 500, 510, 520, 800, 810, and 1000 - Accepts GoPro mounting style compatible accessories - Out-front mounting position centers the computer and accessories in front of the stem - Fits both 25.4mm and 31.8mm handlebars with included adapter

- 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

• Handlebar mount for Garmin Edge 200, 500, and 800 • Fits handlebars 22.2 to 31.8mm (Shims included) • Forged and CNC`d alloy construction

- 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

- 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

- Superlight computer/light mount fits cleanly underneath the stem - Replace a headset spacer(s) below or above the stem on any 1-1/8" steerer - 12mm stack height with 50mm wide mounting area, 120mm long angle adjustable arm

Keep your handlebar organized and your devices secure with the SGS-400-OS (27.2/31.8/35.0mm) from Minoura. - Holds up to 2 accessories (light, computer, mp3, bottle cage holder, etc.) - Lightweight and rustproof alloy construction - New LW-Clamp reduces weight 25 grams compared to previous models - Aluminum bar is position adjustable and uses Hex Bolt to install and remove - 27mm-35mm diameter

Keep your handlebar organized and your devices secure with the SGS-400-STD (22.2/25.4/28.6mm) from Minoura. - Holds up to 2 accessories (light, computer, mp3, bottle cage holder, etc.) - Lightweight and rustproof alloy construction - New LW-Clamp reduces weight 25 grams compared to previous models - Aluminum bar is position adjustable and uses Hex Bolt to install and remove - 22mm-29mm diameter

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

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

KMC's digital ChainChecker is the most accurate tool for checking your chain’s elongation. - Measures up to 2.5mm elongation - Fits all chains including 11 speed - Handy electronic device - Stainless hardened metal body

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

Replacement plastic insert kit for K-EDGE Wahoo Mounts. The co-polymer insert for Wahoo 1/4-turn style computers is a replaceable item. While it is extremely strong, it is designed to fail on a significant impact before the tabs on the back of the Wahoo break. Attributes (specs): – Qty 1 – K-EDGE Co-polymer Insert for Wahoo 1/4 Computer (Part No. K13-1604) – Qty 2 – M3 x 0.5mm x 6mm with Pre-Applied Nylon 180,18-8 S.S. Screws

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 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

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.

K-EDGE’s legendary CNC machined aluminum quality and strength for the price conscious cyclist. Pro positioning of your computer, out-front and flush with the top of the handlebar. - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Compatible: Garmin EDGE 820, 520, 510, 500, 25 and 20. - Replaceable Garmin Insert with K-EDGE “Definitive Click” locking system - Fits 31.8MM Handlebars - NOT combo compatible - Weight: 48g - Anodized Color- Black

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 adjustable version allows for a variety of different stem angles. Can be used with positive or negative degree stems and additional spacers can be added (5mm to 10mm) above the stem. Note that some of the larger computers will not always work with a steep angled 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.

A lightweight and highly adjustable mount for positioning any Garmin computer on aero bars. The pivoting two piece design offers multiple mounting positions based on aero bars, hydration systems and rider preference. - For 22.2mm diameter aero bar extensions - Compatible with all Garmin EDGE computers - Highly adjustable for multitude of mounting positions - Replaceable Garmin Insert with K-EDGE “Definitive Click” locking system - GoPro Interface Compatible - Weight: 29g - Anodized Colors: Black, Red, Blue - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded

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

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 XL combo mount is compatible with all Garmin Cycling Computers - 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: 63g

Garmin's Bicycle Mount Kit lets you attach any compatible Garmin to your bike's handlebars, so the data stays out in front where you can see it.

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).

Extend your ride with the Garmin Charge power pack. This external battery pack plugs directly in to the Edge 1030 cycling computer, giving you up to 24 hours of additional battery life. It even fits into the new streamlined bike mount. You can charge on the go by connecting the Garmin Charge power pack to any compatible fitness device with an additional cable — including wearables and other cycling computers. Just connect the power pack with a USB charging cable so you can stay in the action and get the most out of your activities. - Bike mount sold separately or included with the purchase of Edge 1030 - Wearables with wrist-based heart rate that use a plug-based charger cannot be worn while charging

Stay aware of approaching cars with Varia RTL515 rearview radar. It pairs with your Edge bike computer or compatible smartphone to alert you of vehicles approaching from behind up to 153 yards (140 meters) away. When used with your compatible smartphone, the Varia app uses bold graphics — plus tone and vibration alerts — to indicate the position and speed of approaching vehicles. MAXIMUM AWARENESS - Varia RTL515 rearview radar provides visual and audible alerts for vehicles approaching from behind up to 153 yards (140 meters) away. MULTIPLE PAIRING OPTIONS - This radar works seamlessly with your Edge bike computer or compatible smartphone as well as select Garmin wearables or the optional radar display unit. WORKS WITH THE VARIA APP - This smartphone app helps you increase your awareness by providing graphics — plus tone and vibration alerts — that indicate the position and speed of approaching cars. THIRD-PARTY APP COMPATIBLE - When used with a compatible smartphone, Varia radar integrates with your favorite apps, such as Ride with GPS to overlay your maps with rearview radar alerts. SUPERIOR VISIBILITY - Alert motorists to your presence as soon as possible with daylight visibility up to 1 mile. COMPACT DESIGN - Easily mount this sleek, compact device on the seatpost of almost any road-use bicycle. The vertical design allows for better leg clearance and a perfectly comfortable ride. PELOTON MODE - Varia RTL515 features multiple modes, including peloton mode, which provides a low-intensity flash that is kind to other cyclists’ eyes when riding in a group. BATTERY LIFE - Time spent charging is not as good as time spent riding. Get up to 16 hours of battery life in day flash mode and up to 6 hours in solid mode. Physical Specifications - Dimensions: 3.9” x 0.8” x 1.6" (98.6 x 19.7 x 39.6 mm) - Weight: 2.5 oz (71.0 g) - Modes: solid, peloton, night flash, day flash - Lumens: 20 solid, 8 peloton, 29 night flash, 65 day flash - Battery life: 6 hours solid, 8 hours peloton, 6 hours night flash, 16 hours day flash - ANT+: Yes - BLE: Yes - Water rating: IPX7 - Viewing angle: 220° In the box: - Varia RTL515 - Mounting Kit - Cables - Documentation

This tool is a must-have item for every service center. Essential for diagnosing e-bike systems. PRODUCT DETAILS - Gold-plated connectors for optimal signal clarity - Protective shielding that protects against noise - 2 meters in length - USB-A to USB-C connections - USB 3.1 data transfer cable

Extension Arm holds tablets at comfortable viewing distance. - For use with trainers and spin bikes only - Compatible with all Delta Tablet Holders (sold separately) - Premium aluminum construction - Instant attachment and removal - Rubber coated to protect stem and bars

- Securely holds iPhone (Specifically iPhone 3, 4, 4S, And 5) with most covers - Instant removal and installation of device - Rubber bumpers help grip and cushion device - Adjustable viewing angle can be set for preference - Handlebar mount, stem mount, and weatherproof touchscreen-friendly bag included - Maximum dimensions 2.7" Wide x 0.5" Deep x 4.7" Tall (70X14x121mm)

The ANT+ Micro USB adapter allows on-the-go devices (OTG), such as your Android phone or tablet, to connect to an ANT+ USB stick. Android OTG compatible devices require ANT+ Radio Service and ANT+ USB Service to be installed from the Google Play store. These services allow the adapter to work correctly with an ANT+ USB stick.

The BlueGiga dongle gives Rouvy, CycleOps' virtual training software, the ability to seamlessly connect to Bluetooth devices and sensors. The BlueGiga dongle contains a Bluetooth (BLE) radio that allows PCs to communicate with BLE devices, including CycleOps smart indoor bicycle trainers and power meters made by the folks at PowerTap. Most importantly, the BlueGiga dongle is necessary to update the firmware Over the Air (OTA) via VirtualTraining for the Hammer and Magnus bike trainers. - Bluetooth dongle for PCs to work with Rouvy - Needed for Over the Air Firmware Updates to Smart Indoor Bike Trainers. - Works with PC desktops and laptops.

Connect your desktop to CycleOps VirtualTraining.

Wheel magnet for all CatEye cycle computers

The H-34 Flex-Tight Bracket is an OEM handlebar bracket so you can attach Cateye accessories. It fits all handlebars up to 32mm in diameter.