With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience along with shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain stab
The SLR Boost Kit Carbonio Superflow, finished with premium carbon rails with +10mm extra length, it's the lightest short saddle in its class while the neutral shape supports your ischial bones during long rides.
Allows the use of a 1-1/8" (28.6mm) threadless stem on a 1" (25.4mm) threaded fork with a 22.2mm inner diameter
AL6061 alloy construction with Cr-Mo bolt
Weight: 201g