Though i would see what people though. This is the new engine cradle i made over lockdown for my bike. A little bit more ground clearance, abit stronger and i can bolt a bash plate to it. If i made another would anyone know what aluminium grade to use or if it would be a good idea to use alloy?
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Trials engine cradle
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Hi Liam
Yes. 6082 is my preferred material in both plate and round bar form. It machines and welds well. Plate will take modest bends or sets given the right tooling.
There are other aluminium alloys with similar or greater specs.
good luck with your project.
Phil
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Here's my n cradle which I made just before lockdown and have now done 3 trials with including last Sunday. As well as slimming it down a bit to gain ground clearence I also lifted the engine 3/4 of an inch up and moved it back the same. I used some 1/8 alloy I got from the local scrap yard which seems harder than most. I also repositioned the engine almost 1/8 of an inch left in order to give a little more clearence on the tyre. Surprisingly it seems to handle better even though obviously the centre of gravity is now higher.You may only view thumbnails in this gallery. This gallery has 1 photos.1 Photo
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Originally posted by Liam Robinson View PostUnfortunately Ian my plates are for an mds so wouldn't fit your bike. Would there be a massive difference in weight if made in alloy as im guessing they would have to be thicker?
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Originally posted by teamferret View PostHere's my n cradle which I made just before lockdown and have now done 3 trials with including last Sunday. As well as slimming it down a bit to gain ground clearence I also lifted the engine 3/4 of an inch up and moved it back the same. I used some 1/8 alloy I got from the local scrap yard which seems harder than most. I also repositioned the engine almost 1/8 of an inch left in order to give a little more clearence on the tyre. Surprisingly it seems to handle better even though obviously the centre of gravity is now higher.
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That's interesting, because the factory twice moved the engine forwards; once with the introduction of the TD frame, and again with the TE. To my knowledge they never moved it back again, so at the time, the balance of the TE/S and TFS set-up must have been considered to be about right. When I was trialling my TE 20'odd years ago, I thought it was a bit heavy on the front end; but then, I was no expert! So, why did teamferret move the engine back?
Ian C.
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Aside from re-distribution of weight by shifting the engine mass there has been a significant change of footrest position in the pre-65 trials world. The conservative one size fits all positioning has given over to a much higher and rearward stance.
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