So apparently it is not recommended to try and rip a track cog off these cranks. Web cyclery says put a big ass bar on a chainwhip, no guarantees whether or not it will strip, so I'm selling the whole thing if anyones interested. normal wear and tear for trials cranks. no creaking, due to me sucking and riding at most once a week. Got them last january I think. If your thinking a 112 bb is way too small, remember that its got a track cog on it, not a ffw, and it fits perfectly on a koxx lb 1065 and my coust. Gives me a perfectly straight chainline.