Shimano GRX FD-RX815-F 2 x 11 Speed Di2 Braze-On Front Derailleur 50t max Chainring Snap buckle Compatible with Campagnolo 12-Speed C-Link

Compatible with Campagnolo 12-Speed C-Link and Ultra-Link chains (sold separate) Color Silver Range 10-29 Cogs 10-11-12-13-14-15-16-18-20-23-26-29 Cassette Body Type Campagnolo N3W Drivetrain Speeds 12 Weight 210 Defined Color Silver Gear Range 10-29T

Perfect for BMX and track bikes with 1/8 cog thickness

Model 350 Front/Rear Front Axle/Spacing (mm) 15x100 Hole 32h Spoke J-Bend Brake 6-Bolt Color Black/White Weight 158g

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5" Internal W 30mm Depth 22mm Hole 28 Brake Disc Type Tubeless Material Carbon ERD 561mm (4mm Offset) Color Black Weight 491g Spoke Count 28H

Shimano GRX FD-RX815-F 2 x 11 Speed Di2 Braze-On Front Derailleur 50t max Chainring Snap buckle Compatible with Campagnolo 12-Speed C-LinkGRX FD RX815 Di2 Front DerailleurOperates with Shimano Di2 for digital electronic shifting Chainline is increased by 2. 5mm over conventional front derailleurs for greater tire clearance in the front 17t front range provides more gear range in the front Double or Triple Double Drivetrain Speeds 11 Derailleur Capacity 17 Front Derailleur Clamp Braze on Front Derailleur Cable Pull Electronic Front Der Shifter Compatibility Shimano Road Di2 Max Ring