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Why aren't big bikes ever 2t?

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Itchy
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Joined: 07 Apr 2005
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PostPosted: 14:05 - 15 Dec 2009    Post subject: Reply with quote

Alexio wrote:

Well that's it then, between us with these various ideas we've managed to solve the how of how to create a larger 2 stroke engine, regardless of having to miniaturise some of the parts and possibly millions of pounds of R&D in the future.

I expect a reliable and robust 600cc 200BHP bike before the end of next year Wink


Thats not always true, there have been big leaps and bounds in tech from home garage mechanics. This is especially relevant in regards to technology that ALL manufacturers are currently ignoring.


They are considered to be sucessful designs when a big corporation steals their ideas and or sends assassins.

I.e Dyson vs electrolux who stole each others ideas (though electrolux was right in that the dust separation technology really did exist).

Dyson is just as slimey though, as his company also made a remarkably similar hand drying device which looks remarkably similar and works in the same way as a Japanese one invented in 1997.

Norman Hassock had his inventions copied by BMW as they waited for the patents to expire.

The old frame makers of English motorcycle heritage had their designs stolen by the Japanese.
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the grim reaper
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Joined: 29 Jun 2005
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PostPosted: 15:18 - 15 Dec 2009    Post subject: Reply with quote

I had the enviable task of stripping an RD500 down to the frame, respraying and then re-assembling earlier this year. That was a labour of love, especially as I got to ride it to the MOT as well. Interesting is an understatement, crap brakes, strange handling and a very nice powerband Mr. Green

Cheers

Grim
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G
The Voice of Reason



Joined: 02 Feb 2002
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PostPosted: 15:35 - 15 Dec 2009    Post subject: Reply with quote

I believe current snowmobile 2 strokes make about 130hp from 600cc; and thatís without a gearbox (direct drive with auto clutch I think).
When it required GP bikes probably rebuilt after a weekend to make 180hp from 500cc, I think itíd probably be more realistic to go for a litre bike with 200-250hp Smile.
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ms51ves3
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PostPosted: 16:47 - 15 Dec 2009    Post subject: Reply with quote

G wrote:
I believe current snowmobile 2 strokes make about 130hp from 600cc; and thatís without a gearbox (direct drive with auto clutch I think).


I always thought the snowmobiles had a CVT but I could be wrong.
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G
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PostPosted: 17:20 - 15 Dec 2009    Post subject: Reply with quote

Google tells me you are correct Thumbs Up (including this page Rolling Eyes).
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stevo as b4
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PostPosted: 22:42 - 15 Dec 2009    Post subject: Reply with quote

27cows wrote:


On my list of strokers to own are Simson S50, RD400, DTR200, PE400 (I've had a 175), RD80LC, Kettle and RG500 (would pare it down, though - that hideous fairing would have to go, for starters Laughing ). Would also love an RX135, RX King and an older RXZ, but importing stuff from overseas is a pain in the arse.



Out of those bikes, i would say that you really should get yourself a DT200R. I think it's the best 200cc 2stroke trail bike of all time. It has the same decent enough strong chassis and light weight as the DT125R, but with 30bhp+ and the loads of Midrange thanks to YPVS!

Always wanted an RD80LC as a fun project, as i've heard of people getting 15bhp+ out of them! You will have to pay typically silly money today though for anything Yamaha LC shaped in decent condition, and even a project bike will cost £££'s as you just don't see them about!
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