barfy Posted June 7, 2018 Report Share Posted June 7, 2018 Hi, My front brake wasn't working too great so I decided to give it clean and one of the pistons was seized so I bought a seal and piston kit. The new pistons seem to drop in nicely without the seals so hopefully should make for a much better front brake. I recall seeing on here that the seal are kind of wedged shaped and they should go in a specific way. However, looking at the seals they seem to be square. Is there a specific way that the seals or put into the caliper other than with some brake fluid for lubrication? Cheers Quote Link to comment Share on other sites More sharing options...
jrsunt Posted June 7, 2018 Report Share Posted June 7, 2018 Last ones I changed were square, I'm sure. 2012 bike Quote Link to comment Share on other sites More sharing options...
lineaway Posted June 7, 2018 Report Share Posted June 7, 2018 Red rubber grease, but on the AJP just brake fluid will due if you do not have other issues. Quote Link to comment Share on other sites More sharing options...
barfy Posted June 8, 2018 Author Report Share Posted June 8, 2018 Thanks guys. I’ll give it a go over the weekend. Quote Link to comment Share on other sites More sharing options...
craig10 Posted June 8, 2018 Report Share Posted June 8, 2018 It's the grooves that have a wedge shape to the back of them, you'll see it in the profile of the seals once fitted Quote Link to comment Share on other sites More sharing options...
barfy Posted June 9, 2018 Author Report Share Posted June 9, 2018 Got it all together now and it’s working much better. See what you meant @craig10about the lip in the groves. Not so spongy as before although still doesn’t stop as sharp as I’d like. Put in my sons Scorpa Twenty front wheel with the same brake setup and it stops really well so I think the next purchase is a disc. Probably a NG / Scorpa or Dabs disc because they look like they have more braking surface. Quote Link to comment Share on other sites More sharing options...
jrsunt Posted June 9, 2018 Report Share Posted June 9, 2018 I don't think the std hose helps with the spongy feeling, and it could do with being about 3 inches shorter. The new new braktec system on the new repsols are really sharp if your after a mountain bike feel! Quote Link to comment Share on other sites More sharing options...
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