DER CPY RD21 EKAR 1x13

EKAR 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