I am looking for a decent bike for a friend by craigslist but I am not 100% sure what size he would be at 6'2. I am thinking like a 20" frame. I am 5'8 and ride a 19" frame which i think is a size to big for me but it was a deal I couldn't pass up. Let me know what you think. Thanks!

I am watching CL as well and the problem I have is so few people list the size of the bike. Some of them will say this bike fits a X'X" person but that doesn't help if it was a bad fit for the person that was riding it.

6"2 he needs an xl frame, 20" or 21," up to 24" depending on bike brand. each brand is different and has it's own sizing.

at 5'8" a 19" might fit you, but you should be on a medium, 17.5" - 18.5 "

men tend to have shorter legs and longer torsos, women tend to have longer legs and shorter torsos, this needs to be taken into account.

here is a rough guide...

Xtra Small---13"-15" 4'8" to 5'3"
Small---14-16.5" 5'1" to 5'6"
Med---17.5"-18.5" 5'5" to 5'10"
Large---19"-20" 5'9" to 6'1"
Xtra Large 20"-24" 6' to 6'7"

and, sorry to say, no deal is worth a bike that doesn't fit. if the bike doesn't fit, the deal is never too good to pass up.

but you don't have to listen to me, i just work in a bike shop and do this for a living.

Pablo is wise!

I'm 6'3" and have ridden frames from 19-21" I am also more body than legs, 34" inseam. So a longer top tube helps me out. The best way is to ride several bikes for at least 30 minutes on trails. See what set up works best. Pay attention to things like hands and feet tingling. There are so many important things to choosing a bike. If it doesn't feel good on rides it will end up collecting dust.

Thanks for the input guys. I agree that fit is the most important, because being uncomfortable isn't enjoyable and if you aren't enjoying it, why ride it? So I just want to make sure I find him one that is definitely his size and will work well. He was talking about getting one from Walmart but I thought we could find a WAY better quality bike used on CL.