[ridinobryan]

Wanted to see what info I could get about this.

Just got a pair of the MRP Bones Cranks (used) and I think I might have a problem with the non drive side. If you look at "A", this was how the spacers were on the previous bike. Pretty sure it was a 73mm BB width. My bike has a 73mm width. Trying to install it with this set up, the non-drive side cup stuck out quite a bit (at least 1/4"). So I moved one of the spacers to the outside of the cup (spacer circle in red) and then see "B".

Is it a good idea to do this? Since the cups have cartridge bearings, will the pressure
from this spacer damage the bearings? Or does the crank-arm need to be flush to the cup? Also, once everything is tightened, there is very little back-spin from the cranks. A good push will spin it maybe one time around. And I'm not tightening that much. Would this be normal and would it loosen up a little once I rode it for a bit?

Any help would be great!

Thanks!

 

[DHGH]

The MRP website has pretty detailed instructions for the spacers for that set and they seemed to work well enough.

http://www.mrpbike.com/instructions04/?PHPSESSID=ba5479920471c0d212393be90658ea75 (if that doesn't work just go find it through www.mountainspeed.com ) and select the MRP Bones. I do remember the non-drive side spacers being kind of illogical and spaced weird.

 

[ridinobryan]

Yeah, I checked out there web site and found the instructions. I guess I was looking for something visually that showed the spacer set up.

Thanks for the reply tho.