3T's Straight Aero Extensions are made of durable, stiff aluminum and feature no bends for an ultra low position during your time against the clock. - Standard 22.2-mm diameter - 305mm maximum extension from center line of bar clamp

- Convert any vertical dropout frame with derailleur hanger to a singlespeed - Spring loaded arm keeps tension on chain, Pulley axle adjusts to optimize chainline - Chain retention hoop prevents chain derailment

- Replacement bar donuts for cobrafist pogies

- For use with lightweight disc rotors with cutout sections around the bolt area - Disc rotor reinforcing ring supports the 6 rotor bolt mounting positions. This support effectively ties them together to work as a unit - IS: 6-bolt / 44mm BCD International Standard - Sold in pairs

- Includes stainless bolts - Fits 160mm front and 140mm rear rotors

- Includes stainless steel bolts - 40mm fits 200mm Front and 180mm Rear Rotors

With the BOB Quick-Release Skewer, you can attach your trailer to almost any bicycle, including tandems with wider hubs. It's made from high-quality chromoly steel and is available in three lengths to fit almost any bike.

- Ultralight, CNC-machined 6061 aluminum spacers for fine-tuning stem height - Includes one each: 3, 5, 10mm spacers and two each: 1mm spacers

- CNC-machined 6061-T6 aluminum with titanium hardware - Zero-friction cam surface treatment ensures smooth lever action - 27g

- Plastic guide and clamp with TPE elastomer for quiet, smooth chain retention - Zip-Ties quickly onto a variety of chainstays - Split design fits over the gear cable and chain, No disassembly required - Pivoting chain tube follows the chainline on 2 or 3 chainring setups

- Lightweight All-Mountain/Enduro 1X chain guide - Constructed from 6061 T-6 alloy and molded thermoplastic - Captive hardware for easy installation and adjustment - Not compatible with 104BCD x 30t chainrings - Integrated Beavertail bashguard - 123g (26-32t)

- Lightweight, super-efficient dual-ring chain guide for 2 x 10 drivetrains - Proprietary polymer slider silently guides chain with minimal wear and drag - Integrated bashguard protects chainrings - SRAM model specific to XX, XO, X9 and X7 2x10 cranks - 145-165g

- Lightweight, super-efficient chain guide with no moving parts - Proprietary polymer slider silently guides chain with minimal wear and drag - Integrated Beavertail bashguard - 160g

Low viscosity mineral oil for use with Campagnolo hydraulic brake systems. - Will not damage frame finishes - Does not absorb water so regular bleeding is not necessary - Non-toxic and will not irritate skin

EPS Power Unit Mounts are required for mounting the Power Unit to the bicycle and are available in both seatpost mount and waterbottle mount. - Not compatible with the V3 Power Unit - Required for external mounting of V2 Power Unit

- 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

EPS Power Unit Mounts are required for mounting the Power Unit to the bicycle and are available in both seatpost mount and waterbottle mount. - Fits external seat post diameters from 30.9 - 31.6mm - Not compatible with the V2 Power Unit

Screws required for mounting Campagnolo hydraulic rear calipers to bicycle frames. Lengths unique to frame specifications.

EPS Power Unit Mounts are required for mounting the Power Unit to the bicycle and are available in both seatpost mount and waterbottle mount. - For mounting the V3 power inside the seat tube using the water bottle screws - Not compatible with the V2 Power Unit

EPS cable kits come in multiple options that allow for the mounting of the power unit beneath the bottom bracket or beneath the saddle. - Weathertight o-ring sealed connectors - Allows for the mounting of the EPS Power Unit beneath the bottom bracket - Only compatible with Chorus and Athena EPS systems

EPS cable guide magnets are required for internally routing EPS wires. - Includes: wire, metal cable, and magnet

- Required for use on carbon frames with carbon front derailleur braze on mounts - Compatible with all Campagnolo EPS front derailleurs - Increases the stiffness of carbon front derailleur braze-on mounts to handle the increase torque of EPS front derailleurs

EPS cable kits come in multiple options that allow for the mounting of the power unit beneath the bottom bracket or beneath the saddle. - Weathertight o-ring sealed connectors - Allows for the mounting of the EPS Power Unit beneath the saddle - Only compatible with Chorus and Athena EPS systems

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. - Weathertight, o-ring sealed connectors - Waterproof to 1m for 30 minutes (IP67 Rated) - Compatible only with the Chorus Power Unit

- EPS under-seat shifter cable kit

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. - New shape with LED indicators on 3 sides - Battery charges through the Interface Unit, no more need to drill a charging port hole in the bicycle frame - Contains a wireless module allowing for connection to PCs, smartphones, tablets, etc., through ANT+ and Bluetooth Low Energy (BLE). Requires the use of Android 4.3 or newer, or iOS 8 or newer - Only compatible with Campagnolo Super Record and Record V3 Power Unit - Waterproof to 1m for 30 minutes (IP67 Rated) - Weathertight, o-ring sealed connectors - See PDF for complete details on the V3 app and customization

Campagnolo's EPS Interface Unit is like a translator, the vital but often overlooked piece of the electronic shifting puzzle. Mounted to the brake cable or the handlebar, it processes the data churned out by the EPS Power Unit (sold separately) and communicates it to you via an easy-to-read colored LED. Plus, it plays the critical role of converting every analog shift you send its way into a digital format so the system can work as a cohesive whole. There's also an easy-to-read LED battery gauge so you know when it's time to recharge the system. And don't mind the weather, as it's totally waterproof.

Campagnolo's Record EPS V2 Interface Unit is like a translator, the vital piece of the electronic shifting puzzle. Mounted to the brake cable or the handlebar, it processes the data churned out by the EPS Power Unit (sold separately) and communicates it to you via an easy-to-read colored LED. Plus, it plays the critical role of converting every analog shift you send its way into a digital format so the system can work as a cohesive whole. There's also an easy-to-read LED battery gauge so you know when it's time to recharge the system. And don't mind the weather, as it's totally waterproof.

Campagnolo's Athena EPS TT Interface Unit is like a translator, the vital but often overlooked piece of the electronic shifting puzzle. Mounted to the brake cable or the handlebar, it processes the data churned out by the EPS Power Unit (sold separately) and communicates it to you via an easy-to-read colored LED. Plus, it plays the critical role of converting every analog shift you send its way into a digital format so the system can work as a cohesive whole. There's also an easy-to-read LED battery gauge so you know when it's time to recharge the system. And don't mind the weather, as it's totally waterproof.

The EPS Power Unit is the brain of the entire EPS system. The power unit input/output gate charges the battery and updates the firmware. The unit checks and manages the battery pack, interacts with the interface, drives the front and rear derailleurs, and displays system anomalies through an acoustic buzzer and RGD light. EPS V2 Power Units are for internal battery applications, under bottom bracket, or under chain stay mounting options and require the specific EPS V2 Interface. - Weathertight, o-ring sealed connectors - Lithium Ion battery duration: 500km/month - 1500km, 1000km/month - 1800km, 2000km/month - 2000km - Water proof to 1 meter for 30 minutes (IP67 Rated) - Operational temperature: -4F to 140F - Charging temperature: 32F to 113F