Optimal gearing for spirited group rides and aggressive racing
The SHIMANO FC-RX820-2 balances weight savings and optimal efficiency for mixed-terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. The 2x12-speed crank utilizes a 48-31T chainring and comes in 170, 172.5, and 175 mm crank arm lengths.
Features
Smaller gear steps for cadence control on mixed-terrain riding
Gravel-optimized gear ratios preserve riding rhythm on rough surfaces
Wider gear range
17T range covers array of riding conditions
Gear combination: 48-31T
Hollowtech crank arm
Technical Specifications
MODEL NO: FC-RX820-2
SERIES: GRX 12-speed
Average weight: 710
Rear speeds: 12
Compatible chain: HG 12-speed
Chain line (mm): 47
P.C.D. (mm): 110/80
Spider/gear arms: 4
Chainring combination: 48-31T
Q-factor (mm): 151
Crank arm length (mm): 175
Recommended bottom bracket|Threaded (normal): SM-BBR60
Recommended bottom bracket|Press-Fit: SM-BB72
Threaded bottom bracket shell width (mm): 68/70
Optimal gearing for spirited group rides and aggressive racing
The SHIMANO FC-RX820-2 balances weight savings and optimal efficiency for mixed-terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. The 2x12-speed crank utilizes a 48-31T chainring and comes in 170, 172.5, and 175 mm crank arm lengths.
Features
Smaller gear steps for cadence control on mixed-terrain riding
Gravel-optimized gear ratios preserve riding rhythm on rough surfaces
Wider gear range
17T range covers array of riding conditions
Gear combination: 48-31T
Hollowtech crank arm
Technical Specifications
MODEL NO: FC-RX820-2
SERIES: GRX 12-speed
Average weight: 710
Rear speeds: 12
Compatible chain: HG 12-speed
Chain line (mm): 47
P.C.D. (mm): 110/80
Spider/gear arms: 4
Chainring combination: 48-31T
Q-factor (mm): 151
Crank arm length (mm): 175
Recommended bottom bracket|Threaded (normal): SM-BBR60
Recommended bottom bracket|Press-Fit: SM-BB72
Threaded bottom bracket shell width (mm): 68/70