Thread: Wide gearing on a Cross bike using road bike componients
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Old 10-01-11 | 05:59 AM
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Barrettscv
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Originally Posted by Andy_K
Good to hear. I just got one of those 12-30 cassettes and I was hoping I wouldn't have to get a new derailleur. I had some problems with an 11-32 with my old Tiagra 9-speed rear derailleur. It nearly worked, but bounced a bit in the big cog. The rear derailleur I'm intending to use now is the Ultegra SS model (capacity = 29), but I'll be using it with a 46-34 crankset, so I think I'll be alright.
Yes the front triple with a 50, 39 & 26t adds 12 units to the chain wrap value compared to your 46 & 34t double. You should have the same outcome and be within the practical chain wrap capacity of the "SS" RD.
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