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Brake Rebuild Kit Pricing/Contents what a rip off

850 Combat

Forum Sage
Past Site Supporter
I have bought a number of K&L brake caliper rebuild kits. You can easily pay 30 bucks for one.

Usually, all that is wrong with my calipers is crud, abd cryastalized fluid behind the o ring. The ones I am messing with now, really don't need anything at all, except cleaning. Even the seals are reusable once cleaned. I have an old set with bad looking pistons.

Just looking at Bike Bandit (not the cheapest), I can but a "piston kit" for $21.70. This includes a new OEM piston and both seals. It does not include the two exterior boots (mine are good).

I had no idea that the rebuild kits are such a rip off, as far as content per dollar.

In the future, I will be looking a lot more closely at the OEM Fische and selecting what I need. The last rears I worked on would have been good with nothing but the seal between the calipers halvs, really.
 
Happy I found your post today as I've got my brakes in pieces in front of me. I plan on taking them down to a mechanic friend to blow the pistons out with compressed air once I get the rest stripped and opened. Rear brakes were giving me nothing and I fear I may need new pistons. I'll be sure to scrutinize everything. I wonder how to pop those pistons out on the rears though. Any tricks?
 
Compressed air is the cleanest way. I've used a grease gun attached to the bleed nipple before. It works fine, and there's less risk of a stray piston flying round the shop, but it involved a lot of clean-up work afterward.
 
Drape a old shirt or something over the piston to keep the fluid from covering everything when they pop with the air.
 
Don't get your finger between the piston and the other side of the caliper.
 
I only use OEM brake parts except for steel lines.

Change the brake fluid every two years and there should be no issues.

Maintenance makes the bike go longer!
 
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