Hi Lee!
I’m hoping you could help explain gear ratios and maybe shed some light on which gear ratios are unnecessary. Here’s the situation:
I have a customer that is using the Sram Red compact double (50-34). In the back she is using the new Sram Apex long cage rear derailleur. She is also using a Sram PG1070 10speed casettte in a 11-32. She is interested in switching out the 11-32 cassette to a 12-36. For some reason, I’m thinking that running a gear combination of 34 small ring to a 36 in the back doesn’t make sense. I think what that means is that she would essentially “spin out” OR her gearing in that given combination is too low. Her rebuttal was that her other bike was a road triple with a 22-32-52. However, she was running a 11-28 10sp to go with the triple. I’m wondering this:
Does she just not want to exert any effort climbing or is it useless to run a gear combination of 34-36?
Hopefully these questions make sense.
Congrats on the new book!
Daniel
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