davidmorganrnGranny Gear

2 points (view top contributors)
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110F/142Boost Rear drop outs are one spec. to mention; also, a contrast/comparison with the P-29 would be nice (100/135 QR dropouts; 100 sus. 1 1/8" headtube).
"tiny 9-tooth cog"-such an acute radius is VERY inefficient on a chain-especially a dirty one; AND durability on cogs with fewer than 12 or 13 teeth also suffers greatly. Shimano found this out decades ago with their Capreo cassettes that started with a 9 tooth cog.
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