Shimano GRX FC-RX820-2 2x12 speed Crank 48/31TShimano GRX FC RX820 2 2x12 speed Crank 48 31T The new GRX FC RX820 2 HOLLOWTECH II 2 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 2x12 speed FC RX820 2 Crank 48 31T from Shimano The SHIMANO FC RX820 2 balances weight savings

Material pinion: steel

• Radiator cooling fins increase pad life and reduce brake fade

HOLLOWTECH II crankset

Shimano Tiagra HG500 10speed Cassette 11-25t 12-28t 11-32t 11-34t Mountain Road Bike Cassette

Compatible rear derailleur type: LINKGLIDE system 9-speed

Compatible with:

Double Servo rear derailleur with smooth

The refreshed REVOSHIFT SL-RV400-8R 8-speed right shifter has a comfortable ergonomic grip design and lighter shifting operation for riders with smaller hands

also its Di2 parts rely on Wireless technology to simplify operation and ensure smooth shifting

Technology: Hyperglide

it is also responsible for data transmission to the E-Tube Project and E-Tube Ride apps as well as to third-party devices

with bolt and D adaptor