The end of the Lambretta crank as we know it ???

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drunkmunkey6969
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I think i've seen something similar to this somewhere else before.....but i can't quite remember where. :?

Then i saw these pics, some bloke thats into scooters and makes a few bits now and then, has manufactured a small batch to go on sale with his other stuff......buts its under the counter and you have to ask for it and say the password first. :lol:

Now i'm not sure if these cranks will catch on or not..........they look as if half of them are missing! ;)

Whatcha think? Any good?

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8-)
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Stampede
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lower compression means higher revs but lower power at low revs.... :D

i love engines with a lot of torque, so these cranks are not the first choice for me...
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tony
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Why the cut outs?
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bristolmod
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better balace versus the piston??
Scootering since 1968.
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Adspeed
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Feck me since that Charlie Edmunds article everybodies gone low compression bonkers......but is this the right way to do it. I don't think so.

But looking forward to seeing some findings, you done a comparison on yours yet Dan?

Quote from MBD Full circle cranks info.....

The MBD Race-Tour crankshaft is probably the best crankshaft ever made for a Lambretta (and it is unlikely a better crankshaft will ever be made).

There is over 20 years of testing and development to produce these top quality crankshafts.


Its a far cry from what was previously the best crank in the world......

http://www.lambrettaspares.com/sparepar ... 0601k.html

I'm all for new gear but lets get some real facts this time rather than just a big rant hey, dyno and road comparisons would be ideal.
Last edited by Adspeed on Sun Jun 14, 2009 12:22 pm, edited 2 times in total.
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tony
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Is this the crank.. very nice..

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red ghost
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???? vespa crank

2 stroke theory isn't my strong point,but I'll have a guess at part of the answer and say that reduced rotating mass produces an under square engine in terms of balance,so at low engine speed it'll a rough ride but flat-out nice and smooth,kinda like a nascar on an oval track.
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Hmmm, a bronze bush in the small end of the Scootercenter conrod.
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Stampede
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tony wrote:Why the cut outs?
to lower the crankcase compression, which means higher revs...
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david
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I have this one on my race PX
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power on hi revs...
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