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Rear caliper failure, Cali 1400

Sawman

Just got it firing!
Joined
Aug 6, 2016
Messages
1
Location
NB Canada
I've picked up numerous useful tips from you guys over the last 3 years and wanted to pass this tip from my recent misfortune. Even if you don't read all this post look at the pics to see the end result. We started on what suppose to be a 4 day trip. My wife and I enjoy a lot of the secondary, twisty roads in the province. About 200km into the trip we came upon a road patching crew. Fresh partially rolled asphalt. Figuring it would only last for a mile or 2 we continued. It lasted 10 or 12 miles. That asphalt stuck everywhere. All over the rims, coated the driveshaft housing, the inside of the oil cooler fan housing. You get the drift. When we got out of that, I stopped and cleaned off what I could. Gave what I thought was a good look over. The next stretch of road we travelled was a main route, fairly heavy traffic flowing 60 to 65mph. About 45 miles down this road the bike seemed to act strange, labouring somewhat. Considering it was one of the hottest days so far this year, 90 degrees, figured it was weather related. Within another 5 miles I heard what I thought was a backfire. Pulled over shortly after this when a good, safe spot came into sight. To our surprise what I noticed next was unbelievable. The rear caliper had granaded. When you look at the pics, you may wonder how I didn't notice this. Had no vibration, no smell, no weird noises, just as I stated, just labouring a little. Anyway, I removed the remnants of the rear caliper (the housing, 1 cylinder, one worn out bare brake shoe). After getting the bike home, inspecting the wore shoe, wondered what could cause that caliper to have created a slight constant pressure. There was a piece of that caliper killing asphalt, about the size of peanut stuck on the under side of the brake pedal, holding it slightly on. I had used the rear brake a couple of times prior to hitting that busy road. Have a look at the end result. Hopefully this will save somebody the aggravation and expense I've had. In reality nobody was hurt, most importantly
 

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That's scary! I'm glad you're alright. That's the first time I've seen or heard of that.
On Page 2 of the forum, there is a thread "Rear brake locking up." The sticky bitumen is worse because the stone is unlikely to drop out of the gap when you use the rear brake.

Stephen
 
I did road repair work many years ago and I can attest to how destructive fresh asphalt can be when it gets into equipment! It's tenacious, gooey stuff. Once it gets on metal it picks up and holds whatever is being thrown around, dirt, rocks, plastic, rubber tire scraps whatever.

Thank heaven you're OK.
 
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