Azarathal Posted November 15, 2011 Report Share Posted November 15, 2011 I assume it'll work but I'm wondering whether anyone has done it? More curious than anything. Quote Link to comment Share on other sites More sharing options...
narrowbars Posted November 15, 2011 Report Share Posted November 15, 2011 If you thinking a Magura rim brake lever then I doubt it would work, think about how far your Magura rim brake pads move per mm of lever travel then how far your disk pads move with the same amount of lever pull? If however your thinking about a Magura disk lever then yeah it could work, a Shimano disk lever could also work as they both run on mineral oil. Quote Link to comment Share on other sites More sharing options...
Azarathal Posted November 15, 2011 Author Report Share Posted November 15, 2011 But then think how much the Echo TR Rim brakes move for the same lever travel and compare it to the disc, they use the same lever and its absolutely fine. Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted November 15, 2011 Report Share Posted November 15, 2011 If you thinking a Magura rim brake lever then I doubt it would work, think about how far your Magura rim brake pads move per mm of lever travel then how far your disk pads move with the same amount of lever pull? If however your thinking about a Magura disk lever then yeah it could work, a Shimano disk lever could also work as they both run on mineral oil. Normally id agree with you...as most discs are around a 12mm master piston, but as said below \/ But then think how much the Echo TR Rim brakes move for the same lever travel and compare it to the disc, they use the same lever and its absolutely fine. The Echo Tr disc and magura lever use 14mm pistons, coupled with a 24 or 25mm slave I have no idea how they have enough power for trials ( if they even do? ) The hydraulic advantage surely isn't enough to give sufficient pressure on the pads....having never used one I dont really know though. Quote Link to comment Share on other sites More sharing options...
Mark W Posted November 15, 2011 Report Share Posted November 15, 2011 The TR disc and TR rim brake levers are actually slightly different. EDIT: Bigman's currently running a Shimano lever on his TR brake, and Cap was previously running a Hope lever onto a TR caliper (with Hope seals, obviously). Frankenbrakes galore. 1 Quote Link to comment Share on other sites More sharing options...
Azarathal Posted November 15, 2011 Author Report Share Posted November 15, 2011 Ah okay I was mistaken, How does the hope / shimano lever work out do you know? Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted November 15, 2011 Report Share Posted November 15, 2011 Well. Quote Link to comment Share on other sites More sharing options...
Bigman Posted November 16, 2011 Report Share Posted November 16, 2011 Well. I thought I best elaberate on this abit, this is the lever that I bought, mostly because it was cheap and I didn't want to spend loads of money if it turned out to be shite: M445 Disc Lever I also got a proper shimano olive and hose insert but used the hosing that came with the echo brake, I have now also changed the rotor that I am using, it is now fitted with a magura storm SL rotor, and using the echo disc pads (I can only imagine the hope pads would be better) I have one of the best brakes I have ever had on a bike. So over all, for under £20 outlay the improvement in the brake is deffinately worth it! also I find the shimano lever to be much more comfortable! Adam Quote Link to comment Share on other sites More sharing options...
isitafox Posted September 11, 2012 Report Share Posted September 11, 2012 I'm gonna give this a huge bump as I have done the same as Bigman front and rear for my Inspired. After a failed attempt at bleeding I had another go last night and it seemed to work, just need to check if they still work when I get home and if so get them bedded in! Quote Link to comment Share on other sites More sharing options...
crilin202 Posted October 3, 2013 Report Share Posted October 3, 2013 (edited) Big bump again.... Been thinking of doing the same with my TR disc brake as the lever does not feel good no matter what I do. My question is, if I use a reservoir type lever, would I need to get a bleed nipple for my TR caliper? if not I cant figure out how to bleed it.. Edited October 3, 2013 by crilin202 Quote Link to comment Share on other sites More sharing options...
isitafox Posted October 3, 2013 Report Share Posted October 3, 2013 If you get the Shimano lever as I did you need to get the associated bleed funnel which plugs into a little port on the lever. Then you bleed up from the caliper as you would anyway with the funnel fitted, flick the lever blade a few times to make sure you remove any caught air bubbles then draw fluid back down (making sure the funnel on the lever doesn't run out) to catch any remaining air. Mine were rock solid after I'd done them, rode a comp a few days after in snow and rain and they worked amazingly! Quote Link to comment Share on other sites More sharing options...
niconj Posted September 22, 2014 Report Share Posted September 22, 2014 (edited) And another bump. A mate of mine is going to pair an Echo TR lever to a Hope Trialzone caliper in order to get the adjustment the Echo lever gives. You know, the rim brake like adjustment as there's no reservoir like the Hope levers have. Now I'm asking myself what the better option would be. The Echo rim brake or the disc brake lever. Since Dot 5.1 isn't aggressive to the seals there shouldn't be an issue combining both. I read that the Echo Rim brake lever uses a 14mm piston while the Hope lever uses a 8mm one. Since the smaller one should have the higher hydraulic advantage, it should be less powerful than the Hope lever. What piston size do the Echo disc brake levers have? Edited September 22, 2014 by niconj Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 22, 2014 Report Share Posted September 22, 2014 (edited) the hope is a high-, the echo a low pressure system,parts arent compatible i am pretty sure the echo disc is also a low pressure system,but if i am wrong though please correct me guys Edited September 22, 2014 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted September 22, 2014 Report Share Posted September 22, 2014 The Echo levers have different leverage ratios, but share piston sizes. Dot fluid will kill mineral oil seals, and vice versa. Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 22, 2014 Report Share Posted September 22, 2014 ^ oh yeah,mineral oil also makes the piston question look pretty pointless haha 1 Quote Link to comment Share on other sites More sharing options...
niconj Posted September 22, 2014 Report Share Posted September 22, 2014 (edited) The Echo levers have different leverage ratios, but share piston sizes. Dot fluid will kill mineral oil seals, and vice versa. I read that Dot 5.1 doesn't do any damage to piston seals anymore. I may be mistaken. Is the lever ratio of an Echo Disc lever close to the Hope one. So basically it's only the lever that makes the power difference between Hope and Echo? edit: He just told me that he's neither using Mineral Oil nor Dot 5.1 but sth. else. Not water... We'll see. Edited September 22, 2014 by niconj Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted September 22, 2014 Report Share Posted September 22, 2014 I read that Dot 5.1 doesn't do any damage to piston seals anymore. I may be mistaken. Is the lever ratio of an Echo Disc lever close to the Hope one. My experience says the opposite, but it would still be worth a try. Not really. Quote Link to comment Share on other sites More sharing options...
niconj Posted September 22, 2014 Report Share Posted September 22, 2014 My experience says the opposite, but it would still be worth a try. Not really. So it's basically the seals that are the only impediment for using Dot or Mineral oil in this combination? Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted September 22, 2014 Report Share Posted September 22, 2014 And that the brake will have no power... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.