TECHNICAL BULLETIN May 2021 (supersedes 2013 Oct) SHIMANO DI2 MU-UR500 (NOTE – the following information only pertains to the MU-UR500 motor unit. For MU-UR510, see Shimano Di2 MU- UR510 45.5mm Beltline Tech Bulletin) Gates Carbon Drive is compatible with...
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TECHNICAL BULLETIN May 2021 (supersedes 2013 Oct) SHIMANO DI2 MU-UR500 (NOTE – the following information only pertains to the MU-UR500 motor unit. For MU-UR510, see Shimano Di2 MU- UR510 45.5mm Beltline Tech Bulletin) Gates Carbon Drive is compatible with multiple Shimano Di2 hub systems; however, certain considerations must be taken to ensure proper parts selection. The compatible rear sprockets for Shimano Di2 are as follows: Table 1: Shimano Di2 Compatible Rear Sprockets REAR SPROCKET REAR HUB COMPATIBILITY BELTLINE CT1128DMN* 39.8mm All Shimano 8/11-Speed Di2 Rear Hubs CT1128XMN-D 41.7mm Gates "YMN-D" Series All Shimano Inter-5 Di2 Rear Hubs *Note: Gates CT1128DMN is replaced with CT1128XMN-D as of MY2021 Figure 1: Di2 Specific rear offset sprockets. It is important to note that not all belt drive compatible frames will work with the Shimano Di2 MU-UR500 system. Due to placement of the motor unit, the belt line for the Shimano Di2 moves inboard (Figure 2). Because of this inboard m
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