Model: FC-M8100-1 Series: DEORE XT M8100 Series Rear transmission: 12 Compatible chain: HG 12 speed Chain centerline (mm): 52 O. L.D. | Barrel axis (mm); 142, 148 Lock Nut Spacing | Internal/External Types: 135, 141 P. C.D. (mm): Direct installation Tooth fixed arm/crank claw: 4 Q factor (mm): 172 Length of crank arm (mm) | 170: ✔ Length of crank arm (mm) | 175: ✔ HOLLOWTECH II: ✔ Compatible center axis types | On the outer side: ✔ Recommended center shaft | thread (normal): BB-MT801 Recommended center shaft | press in type: BB-MT800-PA Thread five way width (mm) | 68: ✔ Thread five way width (mm) | 73: ✔ Note: These are OEM Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging Tariffs are not included in the cost of goods.
