New: Take part in the January 2020 BikeRide Giveaway for a HEDKAYSE | ONE bike helmet

Welcome guest! Register or sign in to participate in the cycling discussions.


Ultegra brakes quick release arms jamming
#1
I have 5yr old ultegra brakes on my commuting bike. When I recently tried to take the back wheel off, the brake release arm didn't move freely and the whole cable fixing bolt and assembly turned as well, twisting the cable. I've tried loosening the small allen bolt on the quick release arm, but this hasn't worked.
I can see that there's a little plate with a hook on it, that should move whilst the cable bolt stays in place, but for some reason they're moving together.

The front brake was working fine, so I loosened it all of to see how the plate and bolt should align. When I tightened it up again, that too was jammed. Stupid is as stupid does....

Before I take the two calipers to pieces and (attempt to) re-assemble them, does anyone have advice?

Thanks!
  Reply
#2
Looking at the explosive view of the 6500 brake http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/BR/EV-BR-6500-1681_v1_m56577569830611830.pdf I'd say the hole of the quick release where the cable fixing bolt sticks through is gummed up. You have already taken it apart, so clean it thoroughly and reassemble. Good luck.
  Reply
#3
And don't forget grease.
Dedicated scholar of bicycles
  Reply
#4
Thanks for the posts guys. I've stripped the caliper down and I think it was just several years of commuting grime - had to really force the cable fixing bolt out as it was stuck solid. Cleaned everything up, greased it all (thanks jr14) and it seems to be fine now.
I guess even commuting hack bikes need TLC from time to time...
  Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Shimano ultegra shifting issues. Bam Bam 0 158 01-07-2020, 07:37 PM
Last Post: Bam Bam
  Quick release wheel on fork with 20mm through axle? ibie1983 0 4,420 02-26-2016, 07:27 PM
Last Post: ibie1983
  Quick Release Lever Recall GeorgeET 3 6,306 01-30-2016, 04:15 PM
Last Post: fishboy316
  Ultegra 11 speed right hand shifter tx246 4 6,634 07-08-2015, 11:12 AM
Last Post: Painkiller
  Crank arms muddy fox 5 5,937 02-13-2015, 03:21 PM
Last Post: muddy fox
  Quick release vs. bolt on axle durability J. Hanley 12 13,567 10-18-2014, 09:49 PM
Last Post: Painkiller
  Quick release help neil180 5 4,907 09-30-2014, 03:48 AM
Last Post: DaveM
  Replacing a rear axle with a quick release ConfusedMonkey 8 17,465 06-02-2014, 12:25 PM
Last Post: cny-man
  Cross Chain Issue with Chain Jamming in Tension Pulley Cage vkw 13 12,570 04-25-2014, 06:25 PM
Last Post: vkw
  Ultegra 600 STI Shifter compatibility questions SlowestPoke 9 11,418 03-03-2014, 01:47 PM
Last Post: SlowestPoke

Forum Jump: