Shimano GRX RD-RX812 Rear Derailleur - 11-Speed Long Cage BLK With Clutch For 1x 42t Low Sprocket Max CheckoutTitle=Shimano Alivio SL-M3100-2L Shifter - Left use in combination with the

use in combination with the standard bottom bracket for your chosen frame

Transition knobs have been pushed outward

24mm forged chromoly spindle

Weight: 132g (excluding holster)

Bearing Type Sealed Cartridge Cassette Body Type Shimano/SRAM 11 Speed Road Cassette Body Type Shimano/SRAM 8 9 10 Speed Color Black Defined Color Black Hub Drilling 24 Hub/Brake Compatibility Rim Brake Rear Axle QR x 130mm Skewer Included No Spoke Interface Straight Pull

Shimano GRX RD-RX812 Rear Derailleur - 11-Speed Long Cage BLK With Clutch For 1x 42t Low Sprocket Max CheckoutTitle=Shimano Alivio SL-M3100-2L Shifter - Left use in combination with theThe Shimano GRX 11 speed rear derailleur has an integrated chain stabilizer mechanism that provides a quieter experience shifting security and precision on mixed terrain. For rides on smooth surfaces the derailleur features an ON OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain. Adjustable Shimano RD+ chain stablizer prevents chain slapping and drops