Miss-Higgy Posted August 17, 2012 Report Share Posted August 17, 2012 I get you, and i can't be trusted with light weight parts. Maybe one day... I'll get it. 1 Quote Link to comment Share on other sites More sharing options...
SamKidney Posted August 17, 2012 Report Share Posted August 17, 2012 Dooo it. Thin the tubes a tad, open up that headtube, bb cut out, mayybeee remove those cnc wings by the bb? Or is that too much? Id say really work on those dropouts too. There's a shitload of material on there that just doesnt need to be. After all that, get it anodised for more weight savingsss, or just polish it shiny. Done right it could still take a beating too! Quote Link to comment Share on other sites More sharing options...
Sponge Posted August 17, 2012 Report Share Posted August 17, 2012 I had an '06 Pitbull very briefly, those frames have a lot of room for cutting/shaving: -Big hole in the headtube -Cut the wings off (the forward slanted seattube alone contributes to BB rigidity) -Hollow out bottom of and rear of BB shell yoke -Slice off the awkward triangular tip towards the top end of the dropouts -Raw it all down! Quote Link to comment Share on other sites More sharing options...
Gandalf the Yellow Posted August 19, 2012 Report Share Posted August 19, 2012 I don't think I can add to this, most people have mentioned the most obvious: headtube - maybe as much material as you can as the pressure points are top and bottom cups are BB yoke area - as much as you can end of the top tube? anyway, I totally agree with weight saving - it does make a difference, and depending on rider I think different weighted bikes can easily influence your riding style. I've seen many examples of heavy set ups are ridden by bashers, and light bikes are ridden by the smoothest mofo's out there. It obviously doesn't apply to all riders but I do see a trend. Steve Quote Link to comment Share on other sites More sharing options...
aener Posted August 19, 2012 Report Share Posted August 19, 2012 If you're looking for yet more savings, once you've opened out the headtube, you could enlarge the purge holes in the top and down-tube. Same goes for the bottom of the downtube and top of chainstays if your tooling can fit inside the BB somehow. Quote Link to comment Share on other sites More sharing options...
hypermobilty Posted August 19, 2012 Report Share Posted August 19, 2012 this might be me being silly but since we throw ourselves and the bike about wouldnt it be eaiser and simpler to lose the weight off our selves being not wearing jeans wear shorts theres a few hundred grams saved there not having the the chippy ect or am i complety losing the point Quote Link to comment Share on other sites More sharing options...
aener Posted August 19, 2012 Report Share Posted August 19, 2012 To an extent, yeah. Lighter clothes will make a difference (I know for sure that I ride better in shorts over jeans, though that could be to do with range of movement too), but shaving a bit of body fat won't do much. There's quite a difference between the weight your legs have to push up a jump, and the weight of the object you have to drag up it with you. Not really sure how to explain it, so hopefully having it pointed out to you will flick a switch in your head and you'll get what I mean Quote Link to comment Share on other sites More sharing options...
bike_dummie Posted August 20, 2012 Report Share Posted August 20, 2012 Carbon toptube? Defiantly possible but I don't really know how you would go about it, maybe ask tarty because I'm sure one of them done it to a pure if I remember right. You could also machine part of the headset's cups also done by tarty and drill holes into he bit that goes onto the frame like the Dartmoor headset and maybe do the same to the Headtube around the top? Quote Link to comment Share on other sites More sharing options...
CalRobbo341 Posted August 20, 2012 Report Share Posted August 20, 2012 Post #47 - Quote Link to comment Share on other sites More sharing options...
bike_dummie Posted August 20, 2012 Report Share Posted August 20, 2012 Post #47 - http://www.trials-fo...eo/page__st__40 Thats the one Quote Link to comment Share on other sites More sharing options...
JoNnY__Mc Posted August 20, 2012 Report Share Posted August 20, 2012 this might be me being silly but since we throw ourselves and the bike about wouldnt it be eaiser and simpler to lose the weight off our selves being not wearing jeans wear shorts theres a few hundred grams saved there not having the the chippy ect or am i complety losing the point I guess this is another argument all together, but I believe you're right. If I was at the top of the sport or if I was trying to build the lightest bike I would definitely consider my diet and training off the bike in as much if not more detail. Of course it would be easier to manouver yourself if you dropped a stone, and its much easier to lose a stone (6.35kg) in body fat than it is to lose that kind of weight from a bike. To gain the best possible advantage in the sport at a competitive level I believe there would be advantages to having a low % of body fat. But then again most comp riders that I have seen don't seem to carry much body fat as it is. But as I said this is really an argument for another day and another thread! I appreciate what you are trying to do with the frame, and look forward to seeing your progress and updates! Quote Link to comment Share on other sites More sharing options...
ULtrialsguy Posted August 20, 2012 Report Share Posted August 20, 2012 On a similar topic, looking at my onza t-rex today I noticed, that above the BB theres three vertical tubes. Are they all necessary or could I get away with cutting one or two. I can't afford a new frame so if it would weaken it too much I wouldn't do it. Quote Link to comment Share on other sites More sharing options...
Jake. Posted August 21, 2012 Report Share Posted August 21, 2012 this might be me being silly but since we throw ourselves and the bike about wouldnt it be eaiser and simpler to lose the weight off our selves being not wearing jeans wear shorts theres a few hundred grams saved there not having the the chippy ect or am i complety losing the point My dad says this a lot. Askes me why I don't ride naked to save weight... He's just messing about but it's still silly haha. Flexible clothes are the best to wear, shorts, tee. But essentially from what I've seen (and ridden), 1kg weight off the bike feels the same as 10kg body weight. Quote Link to comment Share on other sites More sharing options...
nztrials Posted August 23, 2012 Report Share Posted August 23, 2012 If you're looking for yet more savings, once you've opened out the headtube, you could enlarge the purge holes in the top and down-tube. Same goes for the bottom of the downtube and top of chainstays if your tooling can fit inside the BB somehow. This what you were meaning? Quote Link to comment Share on other sites More sharing options...
aener Posted August 23, 2012 Report Share Posted August 23, 2012 Yep. Quote Link to comment Share on other sites More sharing options...
Greetings Posted August 23, 2012 Report Share Posted August 23, 2012 My stock is a sub 8kg bike. I used to ride a 10.5kg bike. All I can say is that weight saving is a whole load of bollocks. It doesn't benefit you at all unless perhaps you ride a lot of natural and want to ride as long as possible. If you shed a lot of weight in one go, you might find it worthwhile on the first, maybe second ride. On that basis one could ask why I ride a light bike, the only reason is that I enjoy nice parts which are usually light and my riding style is such that these parts last. Quote Link to comment Share on other sites More sharing options...
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