CAMPAGNOLO RD21 EKAR 1x13 1/2 X 1/8

CAMPAGNOLO RD21 EKAR 1x13 1/2 X 1/8EKAR 13 speed derailleur is custom designed to work specifically in conjuction with the EKAR drivetrain One specific function allows it to be fine tuned for optimal performance Parallelogram 2D trajectory designed to work flawlessly with larger cog jumps and EKAR cassettes Redesigned mechanical clutch system works to absorb chain shock on any terrain Differentiated pulleys offer better control and retention of the chain

Threaded BB for 386EVO frames and 24mm diameter spindle cranks

or DUB spindle cranks into BB386 frames without the need for adapters

and 4 piston calipers

8 - O ring seals - various sizes

Lightweight design with optimized ball ramp angle

upper and lower split cables and all hardware

Only compatible with CN-M9100 chain due to different thickness of the teeth

20 Disc - 2017-2018 / Addict Gravel 30 Disc - 20

Features a cold-forged caliper and KingPin structural pad retention bolt that increases stiffness

Premium direct mount chainring made specifically for E13 TRS cranks

Replacement hardware for Sun Seeker guide wheels

Dual piston actuated mechanical disc brake - both pads actuate providing even and precise clamping force