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Brake pistons
Brake pistons
How to remove brake pistons? Pull caliper, pull pads, pump or use air? Sound right? What about the seal or O rings? Are they in the piston wall? They stay in?
I'm trying get these DAMN mountain bike brakes on the Freeride to work a little better.
I'm trying get these DAMN mountain bike brakes on the Freeride to work a little better.
Bruce
Re: Brake pistons
Put a rag over the pistons then use shop air to (carefully) push the pistons out. If there are two pistons the one closest to the fluid inlet port will come out first, just aim the shop air at the little hole that connects the two piston reservoirs. Your bike is new enough I can't believe there would be corrosion but you can clean the pistons and bores with a little scotch-brite. The o-rings will either be on the piston or in the caliper, who knows how KTM does it but I'm sure it'll be the weirdest, most expensive way possible....Pull the o-rings, and backings (if installed(they would be white plastic looking things in the groove with the o-rings, they are not elastic)). Replace o-rings with new, fill the piston bores with brake fluid, reassemble, bleed and enjoy!
F*** work.
Ride motorcycles.
Ride motorcycles.
Re: Brake pistons
Wingfixer wrote: ↑Wed Mar 14, 2018 10:06 amPut a rag over the pistons then use shop air to (carefully) push the pistons out. If there are two pistons the one closest to the fluid inlet port will come out first, just aim the shop air at the little hole that connects the two piston reservoirs. Your bike is new enough I can't believe there would be corrosion but you can clean the pistons and bores with a little scotch-brite. The o-rings will either be on the piston or in the caliper, who knows how KTM does it but I'm sure it'll be the weirdest, most expensive way possible....Pull the o-rings, and backings (if installed(they would be white plastic looking things in the groove with the o-rings, they are not elastic)). Replace o-rings with new, fill the piston bores with brake fluid, reassemble, bleed and enjoy!
Bruce
Re: Brake pistons
From my limited research, the FreeRide has very weak brakes. They are more like for a slow speed trials bike.
Not really up to fast enduro standards.
Not really up to fast enduro standards.
Yamaha WR250R
Yamaha TW200
Yamaha TW200
Re: Brake pistons
Yeah. I have found that out. They are made by a company that makes mountain bike brakes...same name.Bucho wrote:From my limited research, the FreeRide has very weak brakes. They are more like for a slow speed trials bike.
Not really up to fast enduro standards.
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Bruce
Re: Brake pistons
Fuckin shit. Plastic pistons. Two popped out. Two are stuck. Probably why i can't stop. Now what...ideas? Ordered ss replacement pistons.Laoch wrote:Yeah. I have found that out. They are made by a company that makes mountain bike brakes...same name.Bucho wrote:From my limited research, the FreeRide has very weak brakes. They are more like for a slow speed trials bike.
Not really up to fast enduro standards.
Sent from my SM-J727V using Tapatalk
Sent from my SM-J727V using Tapatalk
Bruce
Re: Brake pistons
Interesting, how many use plastic pistons nowadays? Seems to be not too good in a place which theoretically can become quite hot..
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Re: Brake pistons
If you have SS pistons coming, grab those suckers with a pair of pliers and pull them out. I have some tricks for you if that doesn't work.
Jed Gregory
1090 Adventure R
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Re: Brake pistons
Clearly you need to use fire to remove them. Can't be stuck if they are liquid
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