MRP Derailleurs & Parts

to keep up. This kit includes everything to upgrade your current SRAM XPLR drivetrain from 12-speed to 13-speed. Simply swap out your cassette and rear derailleur (requires a frame with UDH-compatibility). With ...

wires to four different points: front derailleur, rear derailleur, cockpit junction and battery mount.

gears, the Box Three Prime 9 Groupset takes a different approach. The engineers at Box decided that sometimes simple is better so they developed a groupset with a wide ratio range over ...

an improvement on the already popular original Advent X, but now features a cage design that improves performance and durability. Better chain wrap is achieved on cassette cogs through a shorter cage ...

mechanically operated clutch-style rear derailleur for double-ring 10-speed drivetrains that provides equal amounts of shifting fidelity and durability. Engineered to be paired with an 11-38T cassette, this derailleur affords users an ultra-wide ...