If every bump in the trail means a creak from the center of your bike as of late, retire your old bottom bracket and replace it with the Shimano XT BB-MT800 Bottom Bracket. Shimano puts the best of its workhorse craftsmanship into this bottom bracket, using durable seals and small ball bearings that will keep your cranks spinning from flowy climbs to rugged descents with ease.

Includes: 3 x 2.5mm spacers. Crankset Compatibility: Hollowtech II. Threading: english. Shell Width: 68/73mm. Material: [cups] aluminum, [bearings] steel.

Date First Available: July 29, 2015. Best Sellers Rank: #94,204 in Sports & Outdoors. Customer Reviews: 4.8 out of 5 stars 22 ratings 4.8 out of 5 stars. : B012VX7Z4W. Sport Type: ?Cycling. Size: ?One Size. Part Number: ?IBBMT800B. Manufacturer: ?Shimano. Number of Items: ?1. Color: ?BSA Threaded. Brand Name: ?SHIMANO. Item Weight: ?0.2 Pounds. Item Dimensions LxWxH: ?6 x 2 x 2 inches. Package Weight: ?0.12 Kilograms. Item Package Dimensions L x W x H: ?6.5 x 2.36 x 2.17 inches.