Tag Archives: Spectro

Drive ratios of bicycle hub gears

My examination of drive ratios of the SRAM S7 hub has led to examination of other hub gears. I now have information on a very large number of hubs posted online in a Web version of a Microsoft Excel workbook … Continue reading

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Corrected: SRAM S7 gear ratios are as claimed!

Probably only a few people saw the earlier version of this post, but in any case I take it back. I thank Alex Wetmore for correcting my error. The 17-tooth planet gear of the SRAM S7 hub, not the 12-tooth, … Continue reading

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