Echo-Scott Posted May 13, 2008 Report Share Posted May 13, 2008 Right, while I was out ridin tonight the power pad backings on my rock pads decided to snap........again. This is the third time it's happened and I don't know why it keeps happening. The pads are set up straight and close to the rim but it keeps happening. Oh and its a front brake with echo lite forks. Does anyone know why they keep snapping or am I just having alot of bad luck?Scott. Quote Link to comment Share on other sites More sharing options...
cai Posted May 13, 2008 Report Share Posted May 13, 2008 I have no idea why they're snapping all the time, but maybe you should purchase some CNC'd backings? Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 13, 2008 Author Report Share Posted May 13, 2008 I have no idea why they're snapping all the time, but maybe you should purchase some CNC'd backings?I have some on the back and i'm trying to get some second hand for the front but I was just woundering why these power pad ones keep snapping. Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted May 13, 2008 Report Share Posted May 13, 2008 Say goodbye to your maggie pistons if you get cnc backings. Quote Link to comment Share on other sites More sharing options...
BenLeacock™ Posted May 13, 2008 Report Share Posted May 13, 2008 (edited) Say goodbye to your maggie pistons if you get cnc backings. not true at all ?Ive been running them for a while and there all fine ? I only had problems with rimjam backings ? Edited May 13, 2008 by BenLeacock Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 13, 2008 Author Report Share Posted May 13, 2008 Say goodbye to your maggie pistons if you get cnc backings.I've been running a set on the back for ages and pistons are just as good as ever. Quote Link to comment Share on other sites More sharing options...
Synergy Posted May 13, 2008 Report Share Posted May 13, 2008 if you have ab ooster on the front maybe take it off see how it runs ? Quote Link to comment Share on other sites More sharing options...
JT! Posted May 13, 2008 Report Share Posted May 13, 2008 (edited) First i've ever head of them snapping. Edited May 13, 2008 by JT! Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 13, 2008 Author Report Share Posted May 13, 2008 if you have ab ooster on the front maybe take it off see how it runs ?No booster on just now, but thinking of putting one on though. Quote Link to comment Share on other sites More sharing options...
Ryan. Posted May 13, 2008 Report Share Posted May 13, 2008 mate of mine went through loads of rock backings, just kept on buying more lol hasn't had any problems lately Quote Link to comment Share on other sites More sharing options...
Fixed Pants™ Posted May 13, 2008 Report Share Posted May 13, 2008 (edited) Say goodbye to your maggie pistons if you get cnc backings.Apparently, the Rimjam backings only did it because the backings were made of a soft Zinc something, which eventually squished up and allowed more movement for a punch like force on the prongs. CNC alu ones don't do this because they're made of a much more stiff material.EDIT: Knew i had read it on here. Straight from the horses mouth.wally (mr rimjam) said that his pads made this happen a few times, because the (think it was a zinc alloy) he was using was quite soft, and after a while the backings had deformed enough to give a substantial "wobble" to the pad. Then when the brake was applied, the backings are actually hitting the guide prongs- nice brittle casting + impact...snap. Not a problem on the heatsinks though, because they are made from a harder material that doesn't deform to the same extent during use...adam Edited May 13, 2008 by Fat Pants™ Quote Link to comment Share on other sites More sharing options...
craigjames Posted May 13, 2008 Report Share Posted May 13, 2008 is it the whole backing thats snapping? i had several lots of pads where the clip that holds them on to the prong on the piston snapped. just where there was a little bit of movement and they would snap, causing the pad to move about a lot. think it was due to the stupid sharp grind and the grabby nature of the heatsink blue pads i was using. Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted May 14, 2008 Report Share Posted May 14, 2008 Apparently, the Rimjam backings only did it because the backings were made of a soft Zinc something, which eventually squished up and allowed more movement for a punch like force on the prongs. CNC alu ones don't do this because they're made of a much more stiff material.EDIT: Knew i had read it on here. Straight from the horses mouth.did you just call me a f**king horse Quote Link to comment Share on other sites More sharing options...
spaceman Posted May 14, 2008 Report Share Posted May 14, 2008 Say goodbye to your maggie pistons if you get cnc backings.I guess you're referring to the guy who snapped his maggy recently, and he was using heatsink reds with cnc backings? However, in that thread, others snap their maggy even with normal backings.Apparently, the Rimjam backings only did it because the backings were made of a soft Zinc something, which eventually squished up and allowed more movement for a punch like force on the prongs. CNC alu ones don't do this because they're made of a much more stiff material.Actually, the stiff alu backing is so stiff, there's no flex compared to the normal backings, and so the maggy snaps.However, as mentioned, others snap their maggy even with normal backings. Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 14, 2008 Author Report Share Posted May 14, 2008 is it the whole backing thats snapping? i had several lots of pads where the clip that holds them on to the prong on the piston snapped. just where there was a little bit of movement and they would snap, causing the pad to move about a lot. think it was due to the stupid sharp grind and the grabby nature of the heatsink blue pads i was using.The whole backing has snapped straight in two every time, right where the backing gets thin agen after the part which keeps it stable between the prongs(if you get what I mean ) Quote Link to comment Share on other sites More sharing options...
craigjames Posted May 14, 2008 Report Share Posted May 14, 2008 jeeeez thats impressive, never heard of anyone doing that before! Quote Link to comment Share on other sites More sharing options...
Z o o !! Posted May 14, 2008 Report Share Posted May 14, 2008 One word.Heatsink. Quote Link to comment Share on other sites More sharing options...
AdamAllen Posted May 14, 2008 Report Share Posted May 14, 2008 I used to do it on the front with reverse mount urbans.So I got some fattys and a vee Quote Link to comment Share on other sites More sharing options...
NileBrown™ Posted May 14, 2008 Report Share Posted May 14, 2008 did you just call me a f**king horse Hahaha that cheered me up adam lol Snapping powerpad backings? sorry but how do they do that, Ive never seen it happen or heard anything about it, I mean, I thought the heatsink ones were only to give a better feel to the brake? Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 18, 2008 Author Report Share Posted May 18, 2008 Ok guys, Not happy atall. Out riding today and yet again my backings decide to snap. There has got to be something goong wrong somewhere. This is the fourth tim that this has happened to me and it was less than a week ago that the last set snapped. Does anyone have any idea whty this may be happening to me so frequently Annoyed Scott!! Quote Link to comment Share on other sites More sharing options...
Ashley-Wood Posted May 18, 2008 Report Share Posted May 18, 2008 do you have a grind? if so is it really harsh? that may be why! happned to me on rear lol Quote Link to comment Share on other sites More sharing options...
Echo-Scott Posted May 18, 2008 Author Report Share Posted May 18, 2008 do you have a grind? if so is it really harsh? that may be why! happned to me on rear lolI do have a grind but it's been a light/dead grind every time they have snapped. Quote Link to comment Share on other sites More sharing options...
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