NVWOCI WVS Posted April 23, 2007 Report Share Posted April 23, 2007 hi, does anyone know what grade steel leeson and pashley use on their frames?and also what type of welding they use?this is for my a-level tech...designing a new trials frame and thinking of trying to find an old steel frame to modify as a donor-bike.so also if anyone has an old steel trials frame lying about that is damaged/unrideable/extremely cheap i'll be interested!!I'll put an ad up in the for sale and wanted section at a later date but just really the question for now, thanks.sam Quote Link to comment Share on other sites More sharing options...
adamtrials Posted April 23, 2007 Report Share Posted April 23, 2007 hi, does anyone know what grade steel leeson and pashley use on their frames?and also what type of welding they use?this is for my a-level tech...designing a new trials frame and thinking of trying to find an old steel frame to modify as a donor-bike.so also if anyone has an old steel trials frame lying about that is damaged/unrideable/extremely cheap i'll be interested!!I'll put an ad up in the for sale and wanted section at a later date but just really the question for now, thanks.samLeeson use Reynolds 725 and I think Pashley use Reynolds 531.I think leeson braze the frames, may be wrong though. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted April 23, 2007 Author Report Share Posted April 23, 2007 Leeson use Reynolds 725 and I think Pashley use Reynolds 531.I think leeson braze the frames, may be wrong though.ok, thanks...thats really useful.do you reckon i'll be ok brazing my frame...i cant weld very well but i can braze ok and i'll practise before going to the frame!erm yeah, so will brazing be strong enough??cheers Quote Link to comment Share on other sites More sharing options...
RobinJI Posted April 23, 2007 Report Share Posted April 23, 2007 Leesons are definitely fillet brazed. I think there done the same way as my Iolo where an inner brazed is formed at a high heat, and them a lower heat fillet braze is placed on-top to smooth it off and help dissipate the stress. I'm pretty sure Pashleys are TIG welled, they sure as hell look it anyway.Brazing is plenty strong enough. Leeson Curtis Iolobikes and fresh products all use it. Quote Link to comment Share on other sites More sharing options...
bob87 Posted April 23, 2007 Report Share Posted April 23, 2007 (edited) Leeson use Reynolds 725 and I think Pashley use Reynolds 531.Were Pashleys not a mix of steels? Im sure the front triangle was 853 reynolds and the chainstays were 531.EDIT: my mistake, the Pashley was made of 853 and 725 reynolds Edited April 23, 2007 by bob87 Quote Link to comment Share on other sites More sharing options...
Anodised Adamant Posted April 23, 2007 Report Share Posted April 23, 2007 Leeson use Reynolds 725 and I think Pashley use Reynolds 531.I think leeson braze the frames, may be wrong though.Pashley used to use 531 but now this materials is at the end of the production line because as you should know reynolds have realeased 953 quite a while back so pashley willuse 853 or 725 (953 is too dear at the moment) Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted April 23, 2007 Author Report Share Posted April 23, 2007 so could i still braze an old pashley frame of thats all i could get hold of? or would it not work?i reckon i'll just look out for a leeson ore something...maybe a couple of diffeerent bikes to work with, but they should be the same metal?cheers Quote Link to comment Share on other sites More sharing options...
Anodised Adamant Posted April 23, 2007 Report Share Posted April 23, 2007 yes of course you can still braze it because 531 is still easy to get hold of! they stopped making it bout 1 month ago! we braze 531 stillat work it not a problem Quote Link to comment Share on other sites More sharing options...
Ashley Smith Posted April 23, 2007 Report Share Posted April 23, 2007 pashleys were brazed aswell........................... Quote Link to comment Share on other sites More sharing options...
Tony Harrison Posted April 24, 2007 Report Share Posted April 24, 2007 maybe a couple of diffeerent bikes to work with, but they should be the same metal?You'll be able to braze different steels together. You wouldn't have to have all 531 or all 953, for example. Quote Link to comment Share on other sites More sharing options...
Bill_B Posted April 24, 2007 Report Share Posted April 24, 2007 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. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted April 30, 2007 Author Report Share Posted April 30, 2007 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. Quote Link to comment Share on other sites More sharing options...
Bill_B Posted April 30, 2007 Report Share Posted April 30, 2007 T45 is used in Aviation quite a bit (TVR and Lotus use it too) if you want plain gauge tubing, you can get nice teardrop profile tubing too. Google quickly throws up a couple of suppliers that you could call. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.