Parts & Accessories

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

Take your riding to the next level with the addition of speed and cadence. Features - Sensor magnet kit for RideSense speed and cadence sensors Kit includes: - RideSense speed magnet - RideSense cadence magnet

STAY AWARE OF APPROACHING CARS This rearview radar pairs with your Edge bike computer or compatible smartphone to alert you of vehicles approaching from behind. - Reliable rearview radar lets you ride like you know what’s coming. - One radar. Multiple display options. Pair it with your compatible Garmin device, your phone or both. - Don’t have an Edge or other compatible device yet? No problem. The Varia app has you covered. - It’s small, it’s easy to mount, and it works with just about any bike. - Get more life out of your radar with up to 7 hours of battery life. MAXIMUM AWARENESS - Varia RVR315 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. WORKS WITH THE VARIA APP - This smartphone app helps you increase your awareness by providing graphics — plus tone and vibration alerts — to 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. 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. BATTERY LIFE - Time spent charging is not as good as time spent riding. Get up to 7 hours of battery life. In the box: - RVR315 - Mounting hardware - Power cable - Documentation

Monitor your speed and cadence as you ride with these easy-to-install wireless sensors. With no magnets or other exposed parts to line up, these sensors are easy to install, maintain and move between bikes. The speed sensor 2 attaches to the hub of either wheel and self-calibrates with your Edge cycling computer or compatible Garmin device to give you accurate speed and distance at all times — even without a head unit. The cadence sensor 2 fastens to any size crank arm and measures pedal strokes per minute so you can get the most out of your training. Send live speed, distance and cadence data to compatible training apps or displays by using ANT+ connectivity and BLUETOOTH Low Energy technology. With both of these sensors on your bike, you can work to improve your personal best or see where you stand against the pros.

Are you looking for an incredibly simple way to mount your phone to your bicycle? Do you want that case to have a plethora of mounting options and accessories? Well... look no further than the ElastoKASE from BiKASE. Utilizing the 1/8 turn connection of the GoKASE and the simplicity of a rubber lined, gripping shock cord, the ElastoKASE is your "go to" phone or anything case. • Phone holder for 6-inch phones and smaller • Works with GoKASE attachments and brackets • Material: TPE & Shock Cord

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 6 mph

Features - Mounts underneath Contact SLR Aero Integrated handlebars - Adjustable length - Alloy construction - Hardware included

- 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)

- Securely holds Android, Blackberry, and other devices - 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 an all-weather touchscreen-friendly bag included - Maximum dimensions 2.9" Wide x 5/8" Deep x 5.5" Tall (74X16x139mm)

Protect your Edge 1030 with this form-fitting, removable silicone case.

- Pakyak auxiliary battery holder to mount Pakyak auxiliary battery inside the storage box.

Silicone Case for Edge 540/840

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

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

Heavy-duty harness for Miniac 7-function computer.

Handlebar computer mount for Garmin/Wahoo for Vuka Shift AXS

Aerodynamic dual-bottle BTA hydration system that features a dynamic, multi-position computer mount to accommodate your changing needs. Raise the computer mount up to tuck in a refill bottle for race day, or lower it down for a standard bottle while maintaining the optimal view for training days. - Telescoping Garmin mount features on-the-go tilt adjust to avoid glare. - Zero-leak design with a sealed viewing window to easily monitor liquid levels, and a leak-free Dolphin Breather Valve that lets air in but doesn't let water out. - Capacity: 26oz (768 mL) - Material: Plate: 6061-T6 Aluminum - Cage: Nylon Composite Vee Cage - Computer Mount: Nylon Composite - Bottle: Lead free, BPA-Free and HDPE food safe certified bottle - Brackets: Nylon composite with Velcro straps coated with no-slip extension grip - Adjustment Width: 75-150mm - Weight: 9.3oz (265g)

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.

Easily secure your GPS cycling computer to your favorite bike. Includes: - Two sets of O-rings (two diameters) - A backup O-ring in each size

An excellent choice for mountain, cross, and road cyclists who prefer to have the computer above the stem. - Far and away more advanced than the plastic options on the market - Boost Stem Mount is specifically designed to fit atop the shortest stems on the market today - The Gravity Cap replaces your existing top cap and is ideal for Downhill, Enduro, Gravel, Touring, etc - The mount replaces a standard 5mm spacer and is locked securely in place by the top cap compression system - Compatibility: Wahoo ELEMNT, Wahoo Roam, Wahoo Bolt, Wahoo MINI - CNC-machined aluminum for low weight and strength - Made in the USA with a lifetime warranty - Stem mount that is for short, steep stem angles boosting the computer up above by 1cm

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 Shimano STEPS SC-E7000 Cycle Computer display unit provides expanded communication for bicycle data and is compatible with STEPS components - Computer can be customized through E-Tube Project application with smartphone and tablet - The low profile design is well-suited for mountain biking - Includes a 1.39" LCD display - 4 E-Tube ports

Profile Design's UCM Universal Computer Mount provides a convenient 25mm long place to mount your computer on your aero bars. It installs without tools, stays put and can be positioned as needed for easily viewing and controlling your computer.

• When aerobar space is tight, place your computer on top • Tuck straw on either side for best aerodynamics • Fits on TORPEDO SYSTEM 100, TORPEDO SYSTEM 400 & REFILL UPGRADE KIT BOTTLES (each sold separately) • Compatible with most computers, including large screens (sold separately) • Glass-reinforced nylon • Weight: 18.5 grams

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!

CatEye Magnetless Bluetooth sensors with accelerometer. Dual-band Bluetooth, and ANT+ magnetless sensor with integrated accelerometer. Works with Padrone Digital, Padrone Smart+, Padrone Smart (in Mirror Mode), and Strada Smart. - Quick pairing with CatEye Cycling app - Sensors strap to hub shell and crank arm and uses accelerometer to measure speed/cadence

Since man has ventured in to the great outdoors there’s always been the question…”How much does it weigh?” Whether it’s a backpack, tent, cookware, food, or even water, for every step you take weight matters. The Expedition Scale was one of the first Feedback Sports products and it was the first digital weight scale of it’s kind to manage heavy loads with such precision. With unmatched consistency and accuracy, ability to go quickly between pounds decimal, pounds and ounces, grams and kilograms with ±10g accuracy, this is the outdoor gear digital hang scale of choice. - Nylon webbing handle make it easily hung by hand, hook, tree branch, or piece of climbing protection - Measures in precise 20g (0.04lb) increments - Easily swaps between pounds decimal, pounds and ounces, grams and kilograms - Accuracy within ±20g (0.04lb) - 110lb (50kg) maximum load - Coated hook protects your gear - Zero and Tare functions for clearly and accurately identifying weight differences - Auto shut-off saves battery life - (4) AAA batteries included - 1-Year Warranty

Use these cables to connect your power mount to a compatible bike system. Choose the appropriate cable by selecting your version: - Bosch eBike system Generation 2 - SHIMANO STEPS ebike systems with light connection terminals, and - Power sources that use an USB-A port

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

The K-EDGE Gravity Top Cap is a great computer mount for those mountain riders that already have 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

Hand tight adjustability and 4mm hex wrench lockable. - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Compatibility: Combo Mounts, Light&Camera Mounts. - Aluminum knurled thumbscrew - Stainless Steel bolt with 4MM hex feature - Weight: 10g - Anodized Color: Black - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacturer defects. Damages due to abuse or crashing excluded

The Top Tube Mount places your computer front and center on the top tube of Gravel, MTB, and Adventure Bikes with preset mounting positions. - Compatible with all Garmin cycling computers - Multi-mount positions - Garmin approved insert protects the computer body tabs in the event of a crash - All hardware included - CNC machined in Boise, Idaho USA - Made in USA - Lifetime warranty

- USB-A Edge Power Mount Cable - 400mm

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

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.

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 - Compatibility: Wahoo Bolt - Fits Handlebars: 31.8MM - NOT GoPro Interface Compatible - Anodized Color: Black Please contact K-EDGE warranty manager Info@K-EDGE.com for questions or concerns. We highly suggest you follow the recommendations in the Sigma instructions that recommend use of the provided tether leash.

At 32 Grams the Race Mount is 33% lighter than the “standard” Wahoo Mount. - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Compatibility: Wahoo Bolt, Wahoo Mini - Fits Handlebars: 31.8MM - NOT GoPro Compatible - Anodized Color: Black - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacturer defects. Damages due to abuse or crashing excluded. * Attention: ASSEMBLY BOLTS NOT MEANT TO BE REMOVED OR TAMPERED WITH AT ANY TIME. The torx head bolts are installed using a permanent thread-lock compound. Doing so will void all warranties. Please contact K-EDGE warranty manager Info@K-EDGE.com for questions or concerns. We highly suggest you follow the recommendations in the Sigma instructions that recommend use of the provided tether leash.

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

- 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)

- Designed for Giant Dash M200 - Compatible with round tube handlebars (Ø31.8mm) - Includes Giant and Wahoo computer trays - Length adjustable for extra space between computer and stem. - Compatible with Giant Light & Camera Mount.

GNT Axact Cadence Magnet Product description - Wheel magnet compatible with round and bladed spokes - Cadence magnet includes zip ties

GNT Axact 13W Replacement Mounting Bracket Product description - Includes mounting bracket and zip ties

• Handlebar computer/GPS mount designed for use with Contact SLR Aero integrated handlebars (sold separately) • Mounts to underside of handlebars • Integrated Di2 front junction box mount for clean cable routing

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 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

Protege wire harness and hardware with extra length for use with tandem and recumbent bicycles - Contains bracket with 160cm wire, wheel magnet and zip ties - Brackets fits Standard (25.4-26.0mm) bars - Compatible with: Protegé 5.0, 8.0 and 9.0 - Ideal for long wheelbase recumbent and computer installs on a tandem’s rear bars

Designed to specifically work with the MSW Double Wireless Cycle Computer, this sensor receives both speed and cadence information and is digitally coded to eliminate electronic interference from other devices. - Strong 2.4 GHz signal allows rear chainstay mounting with fast and reliable transfer of information to the head unit - Includes mounting hardware and shims to fit various diameter and shapes of tubing - Sensor must be paired with specific MSW Double Wireless head unit - 24g

Connect your PC to CycleOps VirtualTraining.

- 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)

Use these cables to connect your power mount to a compatible bike system. Choose the appropriate cable by selecting your version: - Bosch eBike system Generation 2 - SHIMANO STEPS ebike systems with light connection terminals, and - Power sources that use an USB-A port

An excellent choice for mountain, cross, and road cyclists who prefer to have the computer above the stem. The mount replaces a standard 5mm spacer and is locked securely in place by the top cap compression system. - Supported Computers – Wahoo ELEMNT, Wahoo Bolt, Wahoo MINI - Compatible – 1-1/8" Steerer tube Diameter, - Thickness: 5mm, Length 50mm (Center-to-Center) - Recommended for 0 Degree to Negative Degree Stem Angles - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Weight: 25g - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded

This mount was made specifically for Trialists and Triathletes. You can easily attach your Edge cycling computer and quarter-turn accessories to TT bars.

The Muc-Off Secure Tag Holder offers a secure way to install a tracker to your bicycle frame using the bottle cage mounting holes, so you can track down your bike in the event of theft and can locate it. Bike thieves can get lost, then found again! Protect your pride and joy with the Muc-Off Tag Holder. Designed to track your bike down in the event of theft from a long-range. At closer range activate the built-in AirTag speaker to help you better locate the tracker and your bike. HIGHLIGHTS: - Compatible with Apple AirTags (purchased separately) - Fits securely under your bottle cage - Supplied with 2x T25 security 25mm bolts and 1x security key - Non-rattle design to hold tracker securely in place - Tracking device not included with mount! What's Included: - Secure Tag Holder made from precision machined 6061 Aluminium - 2x T25 security 25mm bolts - 1x security key Not Included (Sold Separately) - Apple AirTag

Wheel magnet for all CatEye cycle computers

Be ready for any terrain with this Garmin Edge mountain bike mount designed specifically for bikes with short stems. It’s ideal for off-road riding when you may not want your Edge bike computer mounted in front of your handlebar.

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

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

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

In conjunction with the EPS Power Unit, the Interface is the "thinking" center of EPS and is responsible for on board diagnostics, managing settings, converting analog signal from Ergo Levers to digital and sending it on to the Power Unit maintaining a dialogue with the Power Unit. - Can be fit to the right-hand side (only on the right-hand side) of compatible handlebars or on the down tube of compatible frames - 2 connectors on the rear side - one to connect to the power unit (gray), and one to connect to the Ergopower controls (orange) - FD/Shifter Compatibility: EPS