-
Cracked piston? Buggered seal? Cracked caliper? Busted diaphragm?
-
At least hope do small parts and you can rebuild it.
-
I've used SRAM DOT grease on Hope pistons. I think any DOT grease should be fine. But I doubt that a sticky piston would cause you that much trouble. If you take the wheel out then there's enough room to walk the pistons all the way out. then you can take a good look and work out if it's really that or a different issue.
-
Had similar issues with mine. Phenolic pistons get a bit rough over time, chips etc. I replaced the ones in my E4s with the new stainless hybrid ones which are much smoother. Might be worth giving them a good service, new seals at the least, and a nice fresh bleed.
-
How old? Current gen hopes use a liner of some kind between the caliper bore and the piston,to mitigate similar issue.
Would hey new pistons and seals from hope, doesn't take much dirt and wear to make pistons behave weird
You are reading a single comment by @rooooonin and its replies.
Click here to read the full conversation.
coventry_eagle
pascalo
chiroshi
TooTallTim
BrickMan
@rooooonin
I'm having troubles with one of my Hope E4 calipers. During my last ride, the front caliper seized up and after pushing the pistons back on the trail I was able to limp home with out a front brake. I cleaned the pistons and lubed them with some silicone lube. Hope recommends some hunter lube which I can't get in Germany at the moment, so I used liqui moly silicone lube. However, the pistons still don't fully return. Any idea what's going on?