Thanks Mike - wasn't aware of the new name for carbonic Ice. They're the ones supplying acetylene cylinders complete with gauge.
I use Southern gases for both gas bottles now. Quite good to deal with too. A mate uses Air Liquide for acetylene and BOC for Oxy - in total pays more than me.
Dave Pearce here the bloke with the untidy workshop. That picture was taken after 4months of flat out work by one person (ME) to build a proper Moto 3 bike for the British championship full of KTM's & Honda's and bloody competitive. If the workshop took a bit of a battering it was all worth it. I got the Wife to sweep up while we were winning the first race at Brands Hatch. This is a totally private project between a few mates . (I'm supposed to be retired) There is no connection whatsoever with Mahindra. The various components were obtained as part of another deal. Any questions regarding the chassis etc I will try to answer within reason.
Welcome to the forum Dave. Good to have another semi retired bike builder here, lol.
I had seen pics of your minimotos and a few SOS frames and had assumed that there was a progression toward the sheet subframes.
Philosophically, it can't be argued - the sheet versions are stiffer, lighter and cheaper....no contest.
I have priced up doing a structural seat in CF or alloy, here in NZ, no....
The air intake steering head structure on the Mahindra interests me. Had you considered running the frame tubes to the box rather than to the head tube ?
I'm looking at doing much the same here and at present can't see any significant reason not to just go to the box.
What name do I address you by?.
I've tried a few different ways with the Headstock intake. The method you perfectly reasonably suggest comes out heavy as the box needs to be structural whereas the one on my Moto3 is made in 2mm 5083 alu riveted to the waisted fabricated (5 pieces) headstock. I made the duct /front fairing bracket in 1050 soft alu then took a mould and had a couple made up in carbon.
That 2mm 5083 subframe is real easy to make. I have NO metal forming stuff so I just form it over a convenient block of wood with a large soft mallet. At the 2nd race the bike had a horrendous crash (Both wheels knackered+ all the normal stuff) The subframe was useable later in the day.
Thanks for the info Dave. I had been looking at the Foggy Petronas pics in The Racing Motorcycle, where the duct is structural - but in alloy like the rest of the frame. i'm assuming that in that particular case the stiffness was adequate without a weight penalty.
You've got enough metal forming gear - Italian F1 cars had the bodies beaten over a tree stump for years. When Fantuzzi shifted across town from Maserati to Ferrari, he took the stump with him....
Call me Greg - Greg Thomas. This was a predominantly NZ based forum and enough people here know me that it wasn't a problem...But on this thread we now have you and Michael. And on the ESE tuning thread, some of the worlds best 2 stroke tuners....So lets rip off the veil, LOL.
Greg
Its great to have you here Mr TigCraft
I have followed your work for years. I was actually intending to post some pics and a story that was ran in a local magazine of the frame you did for the Aprlia V twin that was raced here. but I have yet to get around to it.
Could I trouble you for a picture of your frame jig. I have been assembling a collection of jig pictures.
Welcome Dave.
I've always admired your Tigcraft frames (blown away the first time I saw Jason's in the flesh).
Please keep us informed on the moto3 project. Sounds like you have it performing really well; it would be nice to see more of these bikes being built here...
I've got a little question for you.
What is the entended purpose of this front mounts between the frame spars (picture below)? Are they for a front wheel stand?
If so, could you be so nice to post a picture of it in action?
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