dirt jumper jake Posted June 15, 2010 Report Share Posted June 15, 2010 I'm not sure the trials market is prepared to pay for them. It would be awesome to see them out though... Would never last Quote Link to comment Share on other sites More sharing options...
Mike Poyzer @ Onza Posted June 15, 2010 Report Share Posted June 15, 2010 How about a handlebar stem and fork steerer with a machined keyway in both. You insert a key to centralise it with the wheel every time. However if like Mark you don't fancy the prospect of fixing your alignment, you just leave out the key. Quote Link to comment Share on other sites More sharing options...
Krisboats Posted June 15, 2010 Report Share Posted June 15, 2010 How about a handlebar stem and fork steerer with a machined keyway in both. You insert a key to centralise it with the wheel every time. However if like Mark you don't fancy the prospect of fixing your alignment, you just leave out the key. That's more like it! Simple, quick and reliable. Out of curiosity though, how would you account for differing stem heights? A hole wouldn't work, so presumably some kind of groove down the stem and steerer with the key dropped into the groove in order to align it? Quote Link to comment Share on other sites More sharing options...
Matt Vandart Posted June 15, 2010 Report Share Posted June 15, 2010 cant belive no ones had a good idea yet... anti pinch tubes, middleburn cranks to take front freewheel, rims that never need to be re ground This How about a handlebar stem and fork steerer with a machined keyway in both. You insert a key to centralise it with the wheel every time. However if like Mark you don't fancy the prospect of fixing your alignment, you just leave out the key. That is a fairly good take on the original posters plan, but the forks would have to be uber accurately welded and them machined on a day that is not a monday or friday. :giggle: You could even look at having shear lines in them to solve Marks problem. However I believe that it is a problem that does not need to be solved. Quote Link to comment Share on other sites More sharing options...
Krisboats Posted June 15, 2010 Report Share Posted June 15, 2010 That is a fairly good take on the original posters plan, but the forks would have to be uber accurately welded and them machined on a day that is not a monday or friday. :giggle: Just whack it in a jig while it's welded. Quote Link to comment Share on other sites More sharing options...
Mike Poyzer @ Onza Posted June 15, 2010 Report Share Posted June 15, 2010 As for the toothed belts, been there done that . See the picture, took about 20 seconds with an average trials rider. Might work with some bikes but not trials. Quote Link to comment Share on other sites More sharing options...
JT! Posted June 15, 2010 Report Share Posted June 15, 2010 If you can live without a bashplate, because trial... I could have sworn last time I looked at that it didn't have a rear disc tab. Quote Link to comment Share on other sites More sharing options...
Captain Scarlet Posted June 15, 2010 Report Share Posted June 15, 2010 http://www.industrynine.net/News/p2_articleid/8 theres better freehubs... No disc tab. A pro2 would be the only mod disc freehub on the market. The only way to get a mod disc freehub is to get a king BMX hub and replace the shell to ISO which has the disc mount. However to most mere mortals this is way too much time and money, and is therefore fairly unfeasable. cant belive no ones had a good idea yet... anti pinch tubes, rims that never need to be re ground Both are theoretically impossible, but as for the tube I know Raleigh do puncture resistant tubes which are effectively super thick, only problem is that they don't expand very well, so are limited to slim wheels such a bmx wheels. Front carbon rims? Yes, this! Quote Link to comment Share on other sites More sharing options...
Revolver Posted June 15, 2010 Report Share Posted June 15, 2010 I could have sworn last time I looked at that it didn't have a rear disc tab. Now get on and buy one, they're sick. Quote Link to comment Share on other sites More sharing options...
Greetings Posted June 15, 2010 Report Share Posted June 15, 2010 Splined sprocket mount cranks and freewheels. Yep. Discussed this with Deng a while ago and the general idea is that this is too big a change to implement. Quote Link to comment Share on other sites More sharing options...
Shaun H Posted June 15, 2010 Report Share Posted June 15, 2010 Would never last Yes they would. People's aversion to carbon fibre as a strong material drives me nuts sometimes! Quote Link to comment Share on other sites More sharing options...
MadManMike Posted June 15, 2010 Report Share Posted June 15, 2010 A bike that makes doing mad things easy. I hate how some people can just make HUGE riding look effortless Quote Link to comment Share on other sites More sharing options...
sayshell Posted June 16, 2010 Author Report Share Posted June 16, 2010 I think there is a way to make a hope 116mm? Just an idea , but, There has got to be current 116mm drivers that fit, and say, use one of these, make your own axle? Grind disk rotor mount off Maybe? Coloured hosing has been made and comes in 16 colours, but at £16, im ok. could you link me to where I coudl buy some? Would be much apprecaited Quote Link to comment Share on other sites More sharing options...
JT! Posted June 16, 2010 Report Share Posted June 16, 2010 Now get on and buy one, they're sick. I wish I had the money. One day though, one day. Quote Link to comment Share on other sites More sharing options...
ben_travis Posted June 16, 2010 Report Share Posted June 16, 2010 a machine that cures cancer.... 1 Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted June 16, 2010 Report Share Posted June 16, 2010 Yes they would. People's aversion to carbon fibre as a strong material drives me nuts sometimes! Yes but its more brittle than aluminium... thats why when you see expensive kit cars that have been smashed up with cracked and split panels because they use carbon fibre whereas aluminum will just bend and bend and bend before finally snapping. Quote Link to comment Share on other sites More sharing options...
chris4stars Posted June 16, 2010 Report Share Posted June 16, 2010 magnesium bits and pieces you know those anti wheelie bars you see on drag cars? one of those, but pretty small...just set up past the balance point for manuals (a manual stabiliser essentially) because im having a mare in learning them Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted June 16, 2010 Report Share Posted June 16, 2010 magnesium bits and pieces you know those anti wheelie bars you see on drag cars? one of those, but pretty small...just set up past the balance point for manuals (a manual stabiliser essentially) because im having a mare in learning them I believe thats what your ass is for, padding for when you fail Quote Link to comment Share on other sites More sharing options...
Shaun H Posted June 16, 2010 Report Share Posted June 16, 2010 Yes but its more brittle than aluminium... thats why when you see expensive kit cars that have been smashed up with cracked and split panels because they use carbon fibre whereas aluminum will just bend and bend and bend before finally snapping. Yes its brittle but its specific properties are much higher than any aluminum alloy so a rim could be made much stronger and still be lighter. The panels on a kit car aren't usually structural parts so will not be designed with high loads in mind. Quote Link to comment Share on other sites More sharing options...
dirt jumper jake Posted June 16, 2010 Report Share Posted June 16, 2010 The panels on a kit car aren't usually structural parts so will not be designed with high loads in mind. It was merely an example.... Another one that needs to be made is some form of protection for your down tube, seeing as armourdillos arent in production now Quote Link to comment Share on other sites More sharing options...
Shaun H Posted June 16, 2010 Report Share Posted June 16, 2010 It was merely an example... I understand, I was just explaining why I thought it wasn't a good example. I was merely trying to understand why you thought CFRP wouldn't last. Quote Link to comment Share on other sites More sharing options...
hulud Posted June 17, 2010 Report Share Posted June 17, 2010 Splined sprocket mount cranks and freewheels. Atomz quark 2... Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted June 17, 2010 Report Share Posted June 17, 2010 Another one that needs to be made is some form of protection for your down tube, seeing as armourdillos arent in production now OMG, what are the chances?! Quote Link to comment Share on other sites More sharing options...
sayshell Posted June 17, 2010 Author Report Share Posted June 17, 2010 (edited) OMG, what are the chances?! that downtube protector is such a joke. I have some broken old frames that I like to test stuff on, to dent a 2.0mm tube with a hammer you literally have to hit it with all your possible strength. You could not even chip the paint hitting it that hard without the protector on. Well the protector might work but I mean the test they show is garbage. I was buying a new frame and my old one had a stripped bb so I took a hammer to it and tried to break the toptube but I couldn't. I only put tiny dents in it. Anyways what I am saying is its a bad test Edited June 17, 2010 by sayshell Quote Link to comment Share on other sites More sharing options...
Jamie_Trials Posted June 17, 2010 Report Share Posted June 17, 2010 cant belive no ones had a good idea yet... anti pinch tubes, Kenda DH with tonnes of talc. Quote Link to comment Share on other sites More sharing options...
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