Don't do it to yourself
At the time, the price
VERY VERY stubborn to get off.
Very heavy but not really strong.
Splines wore down easily
Angled weird
I bought these because I was wanting to build a new bike and at the time the OG Mike Brennan was on Colony. The moment I got them in the mail, he was gone. I knew it was a bad sign. I can't speak for their frames but these cranks aren't what you're looking for. I got them on and knew something was off. They were designed in a weird angle and made lining my driveline up impossible. When I tried to take them off to try and fix it, they refused to budge. I had to go to a deserted parking lot and beat them until they bent and finally came off. I left them in the parking lot. I wouldn't suggest these unless they're free and even than way your options.