SHIMANO | SHIMANO GRX RX810 1x11Speed Gravel Crankset for Road Bike FC-RX810-1 170MM 42T ChainWheel Original Bicycle Parts

Note:If you choose the "Without BB" option,the products you buy does not include the bottom bracket.Please check carefully before purchasing!SHIMANO GRX Gravel Crankset - 1x11-speedFC-RX810-1SHIMANO GRX - Gravel Crankset - 1x11-speedSHIMANO'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.FEATURESOptimum gearing for mixed terrains and riding styles》Tighter gear steps maintain rhythm on familiar routesGear combination: 42T, 40TPRODUCT SPECIFICATIONSMODEL NO FC-RX810-1SERIES GRX 11-speedColor Series colorAverage weight 644 (40T) 656 (42T)Rear speeds 11Compatible chain LINKGLIDE, HG 11-speedChain line (mm) 49.7P.C.D. left / right (mm) 110P.C.D. (mm) 110Spider/Gear arms 4Chainring combination 40T, 42TQ-factor (mm) 151Crank arm length (mm)|170 ✔Crank arm length (mm)|172.5 ✔Crank arm length (mm)|175 ✔Optional chain guard|Without chain/bash guard ✔HOLLOWTECH II ✔HOLLOWTECH crank arm ✔Compatible bottom bracket type|Outboard ✔Recommended bottom bracket|Threaded (normal) SM-BBR60Recommended bottom bracket|Press-fit SM-BB72Threaded bottom bracket shell width (mm)|68 ✔Threaded bottom bracket shell width (mm)|70 ✔Crank fixing screw included ✔TECHNOLOGIEShg_evhollowtechSHIMANO ULTEGRA Threaded Bottom Bracket 68/70 mm shell widthSM-BBR60SHIMANO 105 - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell widthWith reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.PRODUCT SPECIFICATIONSMODEL NO SM-BBR60SERIES SHIMANO 105 5800 SeriesAverage weight 77HOLLOWTECH II bottom bracket|Threaded bottom bracket type ✔Threaded bottom bracket shell width (mm)|68 ✔Threaded bottom bracket shell width (mm)|70 ✔Small ball bearing ✔TECHNOLOGIEShollowtechPRESS FIT BOTTOM BRACKET 86.5 MM SHELL WIDTHSM-BB72-41BSHIMANO ULTEGRA - Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell widthWith reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.PRODUCT SPECIFICATIONSMODEL NO SM-BB72-41BSERIES GRX 11-speedAverage weight 69HOLLOWTECH II bottom bracket|Press-Fit type ✔Press-Fit bottom bracket shell width (mm)|86.5 ✔Small ball bearing ✔TECHNOLOGIEShollowtechpress_fit_bottom_bracket