montybiketrial Posted January 13, 2005 Report Share Posted January 13, 2005 Playing with idea's... Does everyone think to these numbers? Comment if you know what your talking bout only, thanks. Mod frame by the way. http://www.trials-forum.co.uk/forum/index....cmd=si&img=5588 Sorry about the crap quality... had to save it as .jpeg ;) Cheers, Jack Quote Link to comment Share on other sites More sharing options...
dave85 Posted January 13, 2005 Report Share Posted January 13, 2005 what BB rise are you having? Cos the backend is looking pretty short already: it might be a little "flip-happy" Quote Link to comment Share on other sites More sharing options...
Will Arnold Posted January 13, 2005 Report Share Posted January 13, 2005 Seems good, im not sure about the short chainstays, for gaps they would be bad, but everything else quite good. what will the wheelbase and headangle be? are you thinking of making one yourself? ta Quote Link to comment Share on other sites More sharing options...
JT! Posted January 14, 2005 Report Share Posted January 14, 2005 Isn't 350mm very short stays? I'll have to measure mine see what they are. Quote Link to comment Share on other sites More sharing options...
Davetrials Posted January 14, 2005 Report Share Posted January 14, 2005 475 stays :D Quote Link to comment Share on other sites More sharing options...
Steve-A Posted January 14, 2005 Report Share Posted January 14, 2005 475 stays :D ← 375 maybe, 380 even better. Whats the BB rise going to be? Whats the headangle work out at? 597 is quite long on front. hats 23.5" As far as I can rember from when I had my 20" made the long Koxx/python etc are 23", short ones are 22". Quote Link to comment Share on other sites More sharing options...
montybiketrial Posted January 14, 2005 Author Report Share Posted January 14, 2005 (edited) Yeah, Now I think about it 375m seems to be better. Not sure on the top tube now though... Maybe 570mm (22.5 inch) ? BB rise... what do you think? Cheers Edited January 14, 2005 by montybiketrial Quote Link to comment Share on other sites More sharing options...
Burton Posted January 15, 2005 Report Share Posted January 15, 2005 id say about 50+ bb rise,for the right standover. and about 370/375mm chainstays :ermm: about a 22.5" top tube. dunno about headangles, just dont make it slack, fairly steep- so you dont loose out on toptube length ^_^ Quote Link to comment Share on other sites More sharing options...
JonMack Posted January 15, 2005 Report Share Posted January 15, 2005 I say 20-30mm BB rise, 375/380 stays and 72º head angle. Quote Link to comment Share on other sites More sharing options...
Steve-A Posted January 15, 2005 Report Share Posted January 15, 2005 I say 20-30mm BB rise, 375/380 stays and 72º head angle. ← 20-30mm is very low for a mod. I'd say somewhere between 40 and 55 thats your "normal" mod bb rise. Quote Link to comment Share on other sites More sharing options...
trialsking 55 Posted January 15, 2005 Report Share Posted January 15, 2005 385mm stays, 23" top tube 55mm bb rise and head/t angle errrrmm i dont know :"> Quote Link to comment Share on other sites More sharing options...
Steve-A Posted January 15, 2005 Report Share Posted January 15, 2005 Whats the point in top tube measurements (Y) It a mod with no seat and so the seat tube angle can chenge greatly and therefore the top tube length :o Its the centre of BB to centre of headtube measurements that matter for front end length wise. Quote Link to comment Share on other sites More sharing options...
ScotchDave Posted January 15, 2005 Report Share Posted January 15, 2005 Looks alright I'll give you my ideas later. :o Quote Link to comment Share on other sites More sharing options...
Mr Motivator Posted January 15, 2005 Report Share Posted January 15, 2005 looks ok, but the head tube angle might need sorting. Visulize that with a pair of forks and it looks a bit too.. erm.. off? Sam Quote Link to comment Share on other sites More sharing options...
Mark W Posted January 16, 2005 Report Share Posted January 16, 2005 Whats the point in top tube measurements (Y) It a mod with no seat and so the seat tube angle can chenge greatly and therefore the top tube length :o Its the centre of BB to centre of headtube measurements that matter for front end length wise. ← Yeah, my old T-Bone had a 24" top-tube, and that was f**king short. You're also correct about the measurement of the BB->headset. I think a short rear end with a fairly long(ish) front would feel pretty spangly, but I don't know off hand the back end of my T-Pro, although some middle ground between that and the T-Bone would be pretty ideal. I'll go out tomorrow and measure shit and get back to you :o Quote Link to comment Share on other sites More sharing options...
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