NVWOCI WVS

revell rims!!! BEST RIMS I'VE EVER HAD!!!

thirded!!

better than i expected from nmc! i guess you're not all new to trials, just the forum!?! anyway, not bad for a days riding on a new bike and get a helmet!

or alternatively dont wear gloves! i dont and once the calusses harden up it's fine! just get some decent grips instead! i use bmx grips and it makes you feel more connected with the bike, the brakes feel better too as your hand has more freedom to flex etc. i used to wear king kong gloves and they were pretty ok, i would get bmx gloves though, not xc and definitely not dh/mx!!! go on...be a man dont wear gloves!!!

yer, thought about that, gonna have to change it a bit i think

good effort, really impressed! how did you find the building part? do you have a frame jig and stuff? i want to do the same for my project next year, in the very early stages of designing at the moment...got any tips/advice? what brazing equipment did you use? dont want to steal your topic because i've already got my own but heres a pic of my cad model if yo're interested? any acvice on improving the design etc? cheers

well it got it right when it said i was called sam...maybe thats just the most common name it gets asked so its right more thean its wrong? a probability thing perhaps?...if it always gives a similar answer its gonna be right some of the time!!

the thing is my sim is registered in my dads name because its a contract phone done on a direct debit to his acount its bare weird

Q: What do you know about me? A:AQA believes your name is Sam which means 'to hear'. AQA is astonished by the number of people who text in with either amnesia or an identity crisis.

Q. If u throw a shrew at someone would they be "shrewed" A. If you threw a shrew at someone, they would technically be shrewed (but not shrewd, meaning astute). They could also be badgered, dogged, aped or goosed.

QUOTE(Bill_B @ Apr 24 2007, 10:29 AM) ←T45 and good old 4130 are pretty common grades of steel used as well. Reynolds website has some info about their different grades of tubing and allowable manufacturing processes. Have a look at iolobikes.com, and contact them, I've been looking at custom frames and Aran had loads of time for me when I phoned, and was happy to talk about construction materials and techniques. thanks,might try it. reynolds can only supply butted tubes apparently, so i cant use their tubing anyway as i require plain guage.

snowflake spokes arent even considered strong enoug by xc riders!! and the amount of torque going through the spokes (badly worded, i know!) from the rim trying to turn from the bikes momentum and the friction on the tyre and the hub not turning due to the disc brake...and viceversa for cranking hard...that wheels not gonna last long unless he's super smooth and really light.

QUOTE(Bill_B @ Apr 26 2007, 02:23 PM) ←what type of brakes are you intending to use, Disc, Rim, Vee? and what size wheels will it have? a magura mounted underneath the frame if you get me? 26inch wheels. this is still the very first prototype/initial idea so geametry is kindof academic at this stage, its just the principal of the idea im working on...but i reckon 385mm will be what i probably end up with. i figured this ,might make it stronger as there is more area to braze the chainstays to? probably wrong but at the moment this is all just ideas! not even started the project officiaklly yet, just had this as an idea...definitely making a frame, just coming up with some design ideas!!

it's no coincedence that blue rhymes almost exactly with poo!

biggest gay ever i just started making a new improved cad model with more accurate geometry and stuff, really precise...just finished the rear end, the bb, chainstays dropouts and seatstays, they loked so much better than the old ones too! my computer just crashed and i lost the lot :( about an hours work! o well...gonna start again now!

yeah, i quite like an uber short back end but tyre clearence is an issue, hence the ridiculous angle where the chainstays meet the bb in the model!! anyway, cheers guys

yep, well, i like my '04 echo pure and how it feels...but i can see room for improvement so this is what i've come up with provisionally... *72degree head angle *1070 wheelbase(but not exactly...horizontal dropouts), *+10mm bb rise *365mm chainstay what do you reckon? any suggestions on geometry? im gonna do 2nd version of the frame on cad tonight, i'll post it up here later! cheers

you could measure the erd of your rim because you're gonna need it soon anyway!

i can get hold of a suitable jig from work (a bike shop!) i reckon the school will pay the most of it but i dont mind chipping in if i get a frame out of it at the end and i hope my brazes are good enough, i'm going to spend ages getting the tube profiles perfect before i braze them, but i'm going to spend ages practising my brazing before i go to the frame! yeah, brazing isnt too hard anyway really!

yeah, i didnt realise that until i'd finished the model, but the next version will have shallower angles where the chainstay meets the bb to give enough clearence...thanks for noticing that though.

yep, designing and building as next years A2 project...i can fillet braze it well enough myself, thats the same construction technique iolo uses so it should be fine!

i wasnt sure where to post so i put it in bike pics...i thought i'd put a link to the thread up here too!...here you go!... http://www.trials-forum.co.uk/forum/index....p;#entry1240514

yeah, absolutely agree with all you've said! as for the box section chainstays thats what i was thinking too as an option, so thanks! i've just been in contact with reynolds and they recomend that i get hold of some plain guage 4130 tubing which apparently brazes really well! and i reckon 4130 will make the bike feel really nice as it's weight to strength ration is really good and iu love the feel of cromo bmx frames which are really solid bot not overly-stiff if you know what i mean?!? any other suggestions? geometry-wise, i really love the way my echo pure rides with pashley forks, so i'm probably going to go for a similar geometry to that i reckon! thanks

so basically, i want to design and buil a new trials frame for my a level tech final project! i want a horizontal dropout stock frame and i made a cad model on prodesktop with my initial ideas...the models arent finished, its going to have a steel plate across the back between the seatstays to stiffen it up and act as a brake booster/something to sit on! i plan on mounting a magura on the underside of the seatstays as the frame will be really stiff there anyway and i will use a booster with it too! i reckon this will give the bike really good lines?! anyway, this is only my initial idea and any suggestions for improvements would be very welcome! thanks, heres my cad model... edit:the frame will be made from fillet brazed reynolds 853 steel hopefully! ok, so heres the second draft of the frame(after losing 2 hours work and finally finishing it at 01:10AM!), some slight tweaking, specicfically to the bottom bracket/chainstay area, plus the booster plate has been added, and this time the geometry is as follows: *72deg head angle *385mm chainstays * 1070 wheelbase pretty standard geometry wise really! anyway...what do you think of this one?...