So, I am running 40x13 on a bumbike setup. I had the LBS Loctite it after I stripped it with clips. Now, I am thinking of changing cogs to 15-someone said that would= 48x18. They can do this, no? But while I am at it, should I just go 48x18, or is there no difference? And any cost estimate on this stuff? I am generally riding pretty flat, but some headwinds suck a little.
Also, I am camping up in the Eastern Sierras in June. While I'll take the fixed, I worry. Hilly in the hills, you see. I have an old Puch SS. What would it be to set it up with gears? Would it be better, cheaper to find a (cheap) geared bike?