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Learn MoreWe may as well put Deore XT in the dictionary as a synonym of 'quality'. These Shimano XT FC-M8120 Crank Arms are built for us to put them through the wringer. Seen on our cross-country and enduro bikes, theyre light enough for all-day trail use and durable enough for us to throw down on big park days. The newest XT offering is equipped with a cinch chainring to minimize creaking and weight while working with the latest and greatest Shimano 12-speed drivetrain systems.
Arm Material
aluminumArm Length
165mm, 170mm, 175mm, 180mmChainring Sizes
28T, 30T, 32T, 34T, 36TBolt Circle Diameter
direct mountBB Type
[recommended pressfit] BB-MT800-PA, [recommended threaded] BB-MT800Spindle
24mmQ Factor
178mmChainline
55mmCompatible Components
DEORE XT M8100 SeriesIncludes
1 lockring, 1 preload cap, 2 crank spacersClaimed Weight
[28t] 1lb 5.7oz (616g), [30t] 1lb 6.2oz (630g), [32t] 1lb 6.2oz (628g), [34t] 1lb 6.6oz (642g), [36t] 1lb 8.3oz (660g)Manufacturer Warranty
3 years