dirt jumper jake Posted January 27, 2011 Report Share Posted January 27, 2011 yo, ive got a brand new 36h echo urban rim which im gonna lace to a 36h tryall h hub. and basically i wanna make it light as possible so im going to single wall the rim and file out the holes like an onza diamond rim. has anyone single walled a urban rim before ? whats the best way of doing it? and do you have any tips? shall be having a go at this on sunday so will post up some pics if anyones interested. cheers. Quote Link to comment Share on other sites More sharing options...
l33th3tr33 Posted January 27, 2011 Report Share Posted January 27, 2011 I've done it before, I posted a pic explaining how I did it, if you have a search you'll find it somewhere. Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted January 28, 2011 Report Share Posted January 28, 2011 Dont cut the inner rim out with a hacksaw unless you want to end up with tennis elbow like me. Quote Link to comment Share on other sites More sharing options...
ghostrider88 Posted January 28, 2011 Report Share Posted January 28, 2011 Dont cut the inner rim out with a hacksaw unless you want to end up with tennis elbow like me. My bro did and he is fine took him approx.2hours though... Quote Link to comment Share on other sites More sharing options...
Mark W Posted January 28, 2011 Report Share Posted January 28, 2011 Tyre and tube off, bang the wheel in your frame, grinder, aluminium shaving inhalation, file, win. But yeah, just grind it as best as you can. The better the job you do grinding it the less work you have to do with a file. I did mine when it was freezing cold in a dark room, hence this get-up: Quote Link to comment Share on other sites More sharing options...
totaltrials Posted January 28, 2011 Report Share Posted January 28, 2011 (edited) First of all, make sure you're willing to buy a new rim if it collapses, single walling a double wall rim will weaken it a huge amount, it's not for everyone, so it depends on your riding style etc, My top tip for filing the holes to get a square cut out is to not bother. The amount of time it takes and then watching the rim fold in half makes me say it's not worth it. But that's just my advice, but if you are, just get some files, preferable a file that's the same width as the diameter of the hole so all you do is file the curves off the hole. If you're going to cut the second wall out though it shouldn't take too long actually. Single walling the rim just requires a cutting off wheel on an angle grinder. Actually make that more than one cut off wheel as you may snap one. Then just go around the edge of the second wall. Edited January 28, 2011 by totaltrials Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted January 28, 2011 Author Report Share Posted January 28, 2011 First of all, make sure you're willing to buy a new rim if it collapses, single walling a double wall rim will weaken it a huge amount, it's not for everyone, so it depends on your riding style etc, My top tip for filing the holes to get a square cut out is to not bother. The amount of time it takes and then watching the rim fold in half makes me say it's not worth it. But that's just my advice, but if you are, just get some files, preferable a file that's the same width as the diameter of the hole so all you do is file the curves off the hole. If you're going to cut the second wall out though it shouldn't take too long actually. Single walling the rim just requires a cutting off wheel on an angle grinder. Actually make that more than one cut off wheel as you may snap one. Then just go around the edge of the second wall. Yeah im not too worried if it should collapse as hopefully it shouldnt as i wont be running a rim brake on it. & regarding the file business, do you reckon i could a jigsaw to just cut out the holes? Quote Link to comment Share on other sites More sharing options...
totaltrials Posted January 28, 2011 Report Share Posted January 28, 2011 (edited) Yeah im not too worried if it should collapse as hopefully it shouldnt as i wont be running a rim brake on it. & regarding the file business, do you reckon i could a jigsaw to just cut out the holes? Depends how well you can clamp the rim. There would have to be zero flex/wobble in the rim to put a jigsaw on it. I think it'll be more hassle than it's worth, especially when you get to the 90 degree part. Edited January 28, 2011 by totaltrials Quote Link to comment Share on other sites More sharing options...
Mark W Posted January 28, 2011 Report Share Posted January 28, 2011 Getting them fully to the 90° corners would be pretty cracking. 1 Quote Link to comment Share on other sites More sharing options...
Azarathal Posted January 28, 2011 Report Share Posted January 28, 2011 I lol'd Quote Link to comment Share on other sites More sharing options...
dann2707 Posted January 28, 2011 Report Share Posted January 28, 2011 Tyre and tube off, bang the wheel in your frame, grinder, aluminium shaving inhalation, file, win. But yeah, just grind it as best as you can. The better the job you do grinding it the less work you have to do with a file. I did mine when it was freezing cold in a dark room, hence this get-up: Reminded me of CoD modern warfare 2 for some reason haha. Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted January 28, 2011 Author Report Share Posted January 28, 2011 Depends how well you can clamp the rim. There would have to be zero flex/wobble in the rim to put a jigsaw on it. I think it'll be more hassle than it's worth, especially when you get to the 90 degree part. Yer im gonna clamp in the vice, but im not cutting them sqaure, there gonna be the diamond shape the same as my front atomz rim so should be a bit easier Quote Link to comment Share on other sites More sharing options...
Revolver Posted January 28, 2011 Report Share Posted January 28, 2011 Reminded me of CoD modern warfare 2 for some reason haha. PLACING CLAYMORE. Quote Link to comment Share on other sites More sharing options...
narrowbars Posted January 28, 2011 Report Share Posted January 28, 2011 (edited) Does this not seem to be a complete waste of time? How much weight are you really thinking of saving doing this, make sure you way it before and after. If your after a light wheel then surely its not worth starting with a 36h wheel?. Why not build the wheel up and sell it un-modified then start fresh with a lower spoke count and lighter rim? Sounds like it will be one of those types of jobs you wish you never started but good luck with it Edited January 28, 2011 by narrowbars Quote Link to comment Share on other sites More sharing options...
AndrewG Posted January 28, 2011 Report Share Posted January 28, 2011 (edited) My bro did and he is fine took him approx.2hours though... it was less that 2hours and don´t forgot to saw it slightly first and do not remove the side chamber !!! remove only that part on the rim which is green on pics BTW you can save 60-70grams ;-) + you can make square holes and that can saves next 20-30 grams so finally you can save 100g Edited January 28, 2011 by AndrewG Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted January 28, 2011 Author Report Share Posted January 28, 2011 Does this not seem to be a complete waste of time? How much weight are you really thinking of saving doing this, make sure you way it before and after. If your after a light wheel then surely its not worth starting with a 36h wheel?. Why not build the wheel up and sell it un-modified then start fresh with a lower spoke count and lighter rim? Sounds like it will be one of those types of jobs you wish you never started but good luck with it Not a waste of time to me, technically speaking im an engineer so i enjoy this sort of thing. & i have the 36h rim as i bought it to lace to my old profile hub but that died so it was never gonna get used and i managed to get a tryall hub off a mate cheap. Quote Link to comment Share on other sites More sharing options...
Sam T Posted January 29, 2011 Report Share Posted January 29, 2011 Just took an angle grinder to my old try-all wheel and took out the inner. I'll post some pics up when i've finished filing it. Quote Link to comment Share on other sites More sharing options...
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