Shimano GRX FC-RX820 1x12 speed Crank 40T 42TShimano GRX FC RX820 1x12 speed Crank 40T 42T The new GRX FC RX820 1 HOLLOWTECH II 1 x 12 speed crankset offers the perfect synthesis of light weight and high efficiency for mixed terrain riding. The transmission options address the specific requirements of Gravel and provide tighter graduations for a smooth rhythm. For your riding freedom: the Gravel GRX 1x12 speed FC RX820 1 Crank 40T from Shimano The SHIMANO FC RX820 1 crank balances weight

1pcs RD-M6100 Rear Derailleur SGS

Thanks to the I-Spec EV design the XTR SL-M9100-I shifting levers can be mounted directly to the brake lever

brings Shimano’s industry-leading front shifting to another level

Material: crank arms: aluminium (anodized)

10-45T and 10-51T cassette options serve array of riding styles

The Light Action pedal's easy release mechanism makes geting in and out faster while the flat side still offers sufficient grip even in wet conditions

Shell thread: BC1

E-Bike system components and intelligent shifting

once a day

reliable shifting but now features a wider gear range and extra cog

The Shimano EW-EC300 charging cable has been specially designed for Shimano Di2 12-speed road bike groupsets and is compatible with the components of the current Dura Ace R9200/R9250 and Ultegra R8100/R8150 series

Compatible chain                    : HG 9-speed