Front

The Shimano GRX RX-810-F front derailleur offers lighter front shifting operation and easier setup thanks to the new link construction and integrated cable tensioner. It features a 2.5mm outboard chain line design to allow wider tire clearance for mixed-terrain riding. The RX-810-F also accommodates a 17T front chainring range for wider gearing options. - Ergonomic power curve - Integrated cable tension adjustment - Natural stroke feeling - Chainline +2.5 mm vs. conventional road FD - 17T front range - More cable routing options - Lighter front shifting - Wider tire clearance - Wider range front gearing - Precise and easy front derailleur adjustment

Shimano Ultegra R8050 Di2 front derailleur. - Quick and smooth front shifting under high pedaling torque - Programmed control of chain guide - Shimano Synchronized shift - Full and semi synchronized shifting program - Redesigned to fit wider gear pitch without sacrificing shifting - Shorter length of rear center (410mm) with O.L.D. 135mm - System communication with rear derailleur, Programmed control of chainguide works for minimal chance of chain drop - Top Gear Teeth: 46-53T - Chain Stay Angle: 61-66 - Chain Line: 43.5 - Average Weight: 132 grams

• Converts Braze-on front Derailleurs to clamp on • Lightweight forged alloy • Weight: 28g

When your riding gets adventurous, more range means more versatility. With the ADVENT front derailleur, you can run a gravel-style 46-30T crank paired with an 11-42 cassette, resulting in a ridiculous 585% gear range. Will that work best for traditional touring, gravel, adventure racing, or bikepacking? The answer is yes. - Top Gear Teeth: 44-48T - Capacity: 16T - Band Clamp: 34.9mm (31.8mm w/Shim) - Chain Line: 48.8mm / Boost 51.8mm - Chainstay Angle: 63-68

Centos front derailleurs are precisely manufactured for responsive, accurate shifting under race conditions. - Compatible with Shimano road 11-speed systems

Featuring full metal construction and precisely engineered linkages, Marvo level derailleurs deliver high-end performance that will last. - Full aluminum construction - Dual-pull design - 34.9mm version includes 31.8mm adapter

Mezzo front derailleurs offer durable construction and seamless compatibility with existing systems, making repairs and upgrades easy. - Aluminum bracket, plastic body - Includes 31.8mm clamp adapter

XLE front derailleurs deliver seamless compatibility with Shimano mountain systems, allowing you to repair or upgrade at an attractive price.

Same specs as the K13-002 Pro Braze-on Chain Catcher but includes a Cadence Magnet required for SRM Power Meters, as well as other leading power meter brands. - CNC Machined 6061-T6 Aluminum - Fitment: All braze-on mounted front derailleurs* - Hardware: Includes all mounting hardware for Shimano, SRAM, and Campagnolo front derailleurs * Not compatible with Campy EPS * May not work with all third-party braze-on adapter clamps - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

The new CX Single Ring Chain Guide is designed to prevent your chain from dropping off single-ring setups and built strong enough to endure brutal conditions of cyclocross. Specifically designed to be used in combination with SRAM CX1 and other single-ring setups. The lightweight aluminum cage limits lateral movement of the chain, the leading cause of chain derailment, adding high-end K-Edge quality insurance to your CX bike. Key Features and Benefits: - Full-cage design for chain retention under the most abusive cross situations - Braze-on mount and braze-on adapter clamp compatible - Fully adjustable for height, center-line, and angle - Optimized for 10 and 11spd drivetrains Attributes (specs): - CNC Machined from 6061-T6 Aluminum (no plastic parts) - Stainless Steel Hardware - Weight: 60.8 grams (excluding braze-on adapter clamp) - Compatibility: Single-ring bikes; frames with integrated braze-on front derailleur mount; also compatible with braze-on adapter clamps. All necessary hardware included - Optimized for 34T to 44T Chain Rings - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded