Shimano Grx Rx810 Hollowtech Ii 110 Bcd

SHIMANO´s new FC-RX810-1 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. It is offered in 40T and 42T chainring options and 170, 172.5, and 175mm crank arm lengths.Features: - Optimum gearing for mixed terrains and riding styles: Tighter gear steps maintain rhythm on familiar routes- Gear combination: 42T, 40TSpecifications:- Average weight: 656 (42T), 644 (40T)- HOLLOWTECH II Technology: Yes- Threaded BB shell width_70mm: Yes- Chain line (mm): 49.7- Chain ring combination: 42T/40T- Compatible BB type_Outboard: Yes- Compatible chain HG-EV 11-speed, HG-X11- Crank fixing bolt included: Yes- Crank arm length (mm)_170.0: Yes- Crank arm length (mm)_172.5: Yes- Crank arm length (mm)_175.0: Yes- Gear arms: 4- HOLLOWTECH Technology: Yes- Optional chain guard_Without chain / bash guard: Yes- P.C.D. (mm): 110- Rear speeds: 11- Recommended BB_Pressfit: SM-BB72- Recommended BB_Threaded (normal): SM-BBR60- Threaded BB shell width_68mm: Yes- Q-factor (mm): 151Technology:- HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. We provide optimal 11-speed drivetrain gear ratio, you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting.- The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider's power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company's own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer.- The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design.High Precision Sealing:- Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.