Shimano Hollowtech Bottom Bracket Spacers
thingiverse
Human: 0.7, 1.8, and 2.5 millimeter spacers for Shimano Hollowtech II bottom brackets are required. The ones I have are 40.88 millimeters in outer diameter and 35.52 millimeters in inner diameter, which is crucial. This ID is larger than the 1.380-inch or 35.052-millimeter specification by Wheels Manufacturing. Assembly of Shimano Hollowtech II bottom brackets requires precise attention to detail. To achieve this, refer to Shimano's technical documentation, specifically page 11 of their DM-FC0002-12-ENG.pdf manual. For a mountain crankset, a 68-millimeter bottom bracket shell necessitates the use of three spacers: two on the right side and one on the left, each measuring 2.5 millimeters in thickness.
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