My buddy who weighs around 300lbs is going to purchase a bike to get in shape, I'm helping him build up strong parts like rims, handlebars, and cranks. Unfortunately I have no Idea what inexpensive cranks are the strongest. I'm guessing maybe LX or the new hollow LX or hollow deore's, or maybe even the Bontrager sports. Any suggestions?
Well this is tricky. Inexpensive and strength typically do not go together. Although the Tru Vativ Fire Sl is plenty strong for the price. If you look around enough you can find a good quality Sugino like the 700 or maybe the Mighty for a great price. The bad thing about Sugino is ring life. Great crank for the money just bad rings. I would reccomend Phat Tire. Angelo can hook you up! http://www.phattire.com/default.htm
Hope this helps.
The strength of the cranks is a consern, but around the bike shop our experience was allways wheel`s. make sure they are plenty strong, we had a lot of pretty good wheels that would not stand up. If you stay with a good crank i think this is the least problem, as i dont see him standing on them anyway.!!!!