I recently destroyed yet another set of cranks, a set of Bulletproofs (incidentally the Salsa chainring was unscathed! those things are tough.) when I was really torquing to get through an intersection on my fixed gear. Now, my dilemma is this, a new set of Bulletproof cranks is ~$40. However, I'm guessing I'm going to get another 3 years out of these new cranks, same as the last set. I just found a set of Sugino 75's for ~$200. Should I spring for the Sugino 75's that I've wanted for years now? Is it worth it or will I still need to get another set in 3 years like the Bulletproofs? Any of you guys used Sugino 75's for a long time and know how long they last? Only reviews I can find for Sugino 75's are by 120 lb hipsters who take them to the coffee shop and back or 120 lb track weekend warriors who ride them once a week.
The byline here is that if my wife finds out I bought the Sugino's she'll be less than thrilled, but if I can tell her that I can get more than 5 years out of these things she won't be as angry.