Shimano hydraulic brake pad retention pin loss and repair on ride today.
12-19-21, 08:23 PM
#1
Full Member
Thread Starter
Join Date: Apr 2010
Location: '16 StumpJ, Salsa Mukluk, Soulcycles SS, Dean Colonel HT, BMC FourstrokeTrail, Dean Torres CX, Santana Visa Tandem, Trek T2000 Tandem, Cupertino MTB Tandem, FreeAgent26"Xtracycle, Dirt Drop Dingle, Jamis Dragon Dingle, Airborne Skyhag SS, SSDean Cols
Posts: 219
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Liked 116 Times
in
61 Posts
Shimano hydraulic brake pad retention pin loss and repair on ride today.
Didn't think this would actually happen, but had wondered about it over the decades of riding.
During a steep descent my wife's rear brake stopped working properly. Being an excellent rider she immediately brought the ride to a controlled stop using the front brake.
When I examined the bike I immediately saw the problem. Luckily the pads were still in the caliper, but had almost slipped completely out the top.
Fortunately, using Schrade multi-tool pliers and wire from a key ring, I was able to fashion another retaining pin.
During a steep descent my wife's rear brake stopped working properly. Being an excellent rider she immediately brought the ride to a controlled stop using the front brake.
When I examined the bike I immediately saw the problem. Luckily the pads were still in the caliper, but had almost slipped completely out the top.
Fortunately, using Schrade multi-tool pliers and wire from a key ring, I was able to fashion another retaining pin.
12-20-21, 09:17 AM
#2
With a mighty wind
Join Date: May 2015
Posts: 2,586
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1086 Post(s)
Liked 859 Times
in
488 Posts
It’s pretty surprising that it came out. I also carry multi-pliers, maybe I should add a cotter pin to the kit. I can probably afford the weight.
Sram uses a threaded pin (on gravel groups anyway) but losing it might not be so easy to improvise.
Had the brakes been worked on recently? Seems like something forgotten rather than just a thing that can happen.
Sram uses a threaded pin (on gravel groups anyway) but losing it might not be so easy to improvise.
Had the brakes been worked on recently? Seems like something forgotten rather than just a thing that can happen.
12-21-21, 03:18 PM
#3
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
Looks like someone didn't tighten the retainer pin and also didn't put the safety clip on it when done.
