Join Date: Jul 2008
Location: Boston, MA
Bikes: 2011 Cinelli Histogram, 2008 Redline 925, 1986 Haro Master (original owner, too!), GT (mtn/off-road. It's old. Don't know the model name)
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I've been riding 42/15 (170mm crank) for god knows how long. I think that is like 75 gear inches / 2.8 gear ratio. I don't skid all that much, so I'm not overly concerned with maxing out skid patches (that said, more is always better).
So, assuming I wanted to keep same gear inches / ratio, and was not just looking to increase skid patches, what substantive difference would I experience if I switched to 48/17, 51/18, etc? Stated another way, if someone was not just looking to increase skid patches, why would they choose gearing X over gearing Y when they both have the same gear inches / ratios?
Thanks in advance!