Mick your Maico twin shock project wouldn't be much different to Peter Rowlands cool 'IZ' Yamaha tracker. It started life as an IT250H fitted with a similar vintage YZ465 engine. It slotted straight into the pre 85 class. It'd be a lot better than fitting the engine to an Astro frame..if you could find one. Brian Clarke fitted a 465 Yamaha engine to an Astro a few years ago and it apparently handled like a bucket of shit on our tracks, as most American flat track frames do. I'd use the Maico frame and suitably modifiy it as Pete has done in his thread.
http://ozvmx.com/community/index.php?topic=9177.0
Thanks Firko,
and everyone else. I enjoyed snippets of that thread at the time, but was too busy to take it all in. I intend to amend that situation tonight, particularly as it looks as good in flesh as it does in the pictures. Have you tunned it and dialled it in yet Pete?
At the optimum I could not imaging anything worse than a friend winning a tittle on one of your Hot Rods, then loosing it to a protest because one hadn’t comprehended the rules properly in the first place. Unlikely, yeah maybe? But never say never.
While I have all his assistance, one more question please. I have tried fitting this new(old) 1984 swinging arm and lightweight wheel arragement, all that is needed by the way to make it fit into the back of the Maico is different bearings and a couple thin spacers. I tried it upsidedown as well without the linkage arrangement and varying single shockers I have will bolt straight into place. QUESTION; does this mean that the bike could now legally run in “EVO” classes? Given that everything else on it complies with “evo rules”? It is still a single shock all from the “era”, but without linkage just like a 1983 or 1984 “ATK” of the era.
I might add I am not cutting or welding anything, just changing bearings and adding spacers. Of course I will be taking the electric paint stripping heat gun to the air box and lower inner back guard, should I proceed
18.7.12.3 All components will be of the period the
machine was manufactured.
a) No linkage suspension,
b) No Disc brakes,
c) Air cooled motors.
Cheers and thanks for any help or advice on the matter, Mick