Author Topic: 50 tooth chain wrap.  (Read 1448 times)

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Offline zerodish

50 tooth chain wrap.
« on: May 22, 2015, 08:39:34 pm »
Just replaced the pulleys on my really old shimano derailleur with 15 tooth ones giving a chain wrap of greater than 50 teeth. The gears are 20 34 42 front and 12 13 15 17 20 24 30 40 rear. It actually works a bit better with a 13 tooth jockey pulley. Now if only we could get some one to make after market pulleys. I would like to try a 13 17 combination. Derailleur pulleys are moment loaded which kills bearing faster than any thing else. I've had Dura Ace, XTR, Sram, Campagnolo and am not impressed with any of them.