Author Topic: Crankset loading BB with preload backed out  (Read 1028 times)

Ludo

Crankset loading BB with preload backed out
« on: August 18, 2024, 05:40:53 PM »
Hi,

I am not sure if I am explaining correctly but with the preload ring fully backed out, when I tighten to spec, I overload the bearing and the crankset doesn’t rotate freely. Is there any way around that? Sanding down the preload ring?

Ludo



Wet Noodle

Re: Crankset loading BB with preload backed out
« Reply #1 on: August 18, 2024, 08:28:28 PM »
You might want to add which crank and which type of bb it is.

If there is enough material, it can be done. Alternatives: Face the bb shell down a few 1/10 (again, only if there is enough material) or just leave the preload ring out and try a wave washer instead.

Ludo

Re: Crankset loading BB with preload backed out
« Reply #2 on: August 18, 2024, 08:55:31 PM »
Zrace hardrock crankset with BB92. Will look at sanding the preload ring or took it out as you suggested to see exactly how much play I need to take out…
Thanks for the advice

kubackje

Re: Crankset loading BB with preload backed out
« Reply #3 on: September 04, 2024, 12:44:29 AM »
I had this problem with senicx and t47. Had to remove the preload ring and just put spacers.

Ludo

Re: Crankset loading BB with preload backed out
« Reply #4 on: September 04, 2024, 03:32:24 PM »
I ended up sanding down the lip on the adjuster to increase a little the clearance and it did the trick! I think I probably had to remove 1/12 to 1/16th of an inch