Which crank to go 175mm?
I have a 20 year old Suntour drive train and it's a 170mm. It works fine but after riding my other bike with 175mm I know that I prefer that length.
Any ideas on what to replace it with that isn't so new it won't work? It has a Suntour BB but I don't know what kind of taper it has. Also the existing crank has 42/53 rings so I am guessing a replacement would have 39/52 rings. Will I need a new FD to handle that? Hmmm, and how would 39/52 work with my existing 7 speed freewheel as far as ratios? Maybe I could find a 175mm crank and put my existing rings on it... |
i'd think most any square taper double crank in 175 will bolt right up. I'd also expect that the same front derailleur that shifts between 53-42 will also shift between 52/39. That's not much of a difference. Heck, Ive used derailleur's meant for doubles to shift triples, so I'm sure what you'd like to do is fine.
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Post a swap of your 170mm Suntour for a like 175mm in the ISO/WTB thread. You never know.
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Siguno makes square taper cranks. Try the Quality Catalog at your LBS. They aren't expensive.
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