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MODEL NO: FC-M780
SERIES: DEORE XT M780 Series
Color: Black | Silver
Average weight: 767.6g
Spider/Gear arms: 4
Chainring combination: 42
Q-factor (mm): 175
Crank arm length (mm)|165 ✔
Crank arm length (mm)|170 ✔
Crank arm length (mm)|175 ✔
Crank arm length (mm)|180 ✔
Optional chain guard|Without chain/bash guard ✔
Compatible bottom bracket type|Outboard ✔
Recommended bottom bracket|Threaded (normal) SM-BB70
Recommended bottom bracket|Threaded (E-type) SM-BB70
Recommended bottom bracket|Press-fit SM-BB71-41A
Threaded bottom bracket shell width (mm)|68 ✔
Threaded bottom bracket shell width (mm)|73 ✔