Upgrades to Fuji touring series IV
I'm try to help out an aging cyclist with upgrades to help with knee issues. One difficulty is with climbing the gearing on the Fuji touring series IV isn't low enough. I thought that switching out the front triple from 50-48-28 to a modern hybrid or MTB crank might help and keep costs low. I found two options Sunlite triple 48-36-26 and a shimano M-361
with 42-32-22. I know that the BB will have to be changed out. Is there any compatibility issues that I need to worry about if I'm running this with 6-speed cassette? Also the bike currently runs a 172.5 would a shorter crank be helpful for knee issues?
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1996 Kona Kula-14
2011 Surly LHT-46