cross-posted from: https://lemmy.dbzer0.com/post/49609301
I’ve found that a crankset that comes with rivet-attached sprockets costs the same as cranksets with no sprockets. So we get ripped off either way. The all-in-one piece wastes a crankset everytime the sprocket wears out and probably overspends on sprockets. And the universal crank fleeces you up front by cheating you out of a set of sprockets.
The rivets on my crankset are 72mm apart. Is there any reason I shouldn’t ragefully take an angle grinder to them?
Will I merely have to find sprockets with aligned holes, or could I run into other compatibility issues like mismatched hole sizes or other mating problems?
The bcd cribsheet shows a standard “Shimano 2003 XTR MX960 4-arm middle” has the bolts 72.1mm apart. So it seems I could get lucky though it’s a bit scary that a specific year (2003) is mentioned.
Discussing ways to reduce waste and build community!
Celebrate thrift as a virtue, talk about creative ways to make do, or show off how you reused something!
What did you end up doing? Was your rage against the crankset able to fit in afterwards?
I have done nothing so far. My current crankset has 3 sprockets. The middle sprocket is worn to the point where the chain slips, so to drag this out I just stay on the biggest sprocket. But that is probably going to start slipping this year in which case I will be forced to change it.
I found a flee market seller who sells just the right crank, with one sprocket riveted to it, for $€ 5. So it’s cheap enough that it may be my next move. It seems to have holes in it to add another sprocket to it.
But in any case, I will not throw away my dead crankset. I will keep it just incase I one day find compatible sprockets and then I will try grinding.