Building a trike...

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13 years 11 months ago #13538 by FencerMan
And when i say trike, i mean a motorised, road version :p

Any ideas, tips, suggestions etc? Ive googled stuff but there is ALOT of crap out there on the WWW!

I have basic engineering/automotive knowledge, and my mate is a qualified/certified engineer in the heavy automotive industry, so no problems with the actual construction of such a project, but just the need for plans etc...

Do something.

Either lead, follow, or get out of the way.

'Ted Turner'

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13 years 11 months ago #208621 by Kiwi303
Replied by Kiwi303 on topic Building a trike...
I think a number use IRS with a real diff out of a ATV. Shaft drive bike and a shaft drive Quad rear half welded onto the frame of a 2 wheeler. go look around a quad bike place and see what has a IRS and diff, then find a rolled quadbike of the same model bike with munted front to scavenge the rear off.

You Live and Learn, or you don't Live Long -anon

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13 years 11 months ago #208622 by FencerMan
Replied by FencerMan on topic Building a trike...
IRS? I want it road legal and able to sustain 100km/h easily and (fuel) effiently, so dont know if a quad diff would quite cut the mustard....?

Do something.

Either lead, follow, or get out of the way.

'Ted Turner'

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13 years 11 months ago #208625 by Kiwi303
Replied by Kiwi303 on topic Building a trike...
Independant rear suspension.

As opposed to the Inland Revenue Service Andrea and others fled from in the USA.

Modern quads diffs are pretty capable.

I haven't paid too much attention to road trikes, but of the 4 guys I talked to at a car show once, 2 were running quad IRS systems, and one was running a suzuki feroza (solid) rear end in a fabricated frame and the last had a subaru R160 IRS LSD and a fabricated frame.

Quads rev lower and slower than most road bikes I understand and are tuned for low down torque, while road bike motors are tuned for higher rev power, so a quad rear diff does fairly well.

You Live and Learn, or you don't Live Long -anon

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13 years 11 months ago #208626 by FencerMan
Replied by FencerMan on topic Building a trike...
Guess that makes sense! So any hints/suggestions for sourcing an engine? :P And any suggestions on a particular model and make?

Do something.

Either lead, follow, or get out of the way.

'Ted Turner'

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13 years 11 months ago #208627 by Kiwi303
Replied by Kiwi303 on topic Building a trike...
Hmm... a front end, find a 600cc or better cruiser with shaft drive at a junk yard that got rear ended, chop the rear off just behind the engine under the seat, find a IRS quad post 2001 with a good top speed, most do about 60, by the time you add the faster rev bike engine and larger diameter rear tyres you ought to have 100Km/H capability, cut it's frame off in front of the rear suspensions forward joint and make a frame to join the two bikes.

fromt hen it's all cosmetic :D

You Live and Learn, or you don't Live Long -anon

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13 years 11 months ago #209212 by Timber
Replied by Timber on topic Building a trike...
I know a guy making one with a toyota V8 engine, another had an old 250ci falcon engine, VW engines were popular with them for a while.

But the question is WHY???

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