Sunday, October 19, 2008

Low racer II

After completing the first lowracer (white and REd- I am not talking about wine here!), it was obvious that a few modification were required before going into production.
A second prototype has been built with a slightly different lay-up of carbon fibre. The weight went up by 300g and the bike has a totaly different behaviour on the road.
The second frame has been built with STIFFNESS in mind and I must admit that we did not miss our target but riding confort is reduced.
As our supplier can only supply 451 carbon fork, we redesigned the frame to accomodate a larger wheel. For racing, we still wanted to use a 406 front wheel so we decided to use an adjustable fork angle to find the perfect angle that would suit the two wheel size.
After a couple of test, it appears to be very sensible but a few cables were missing on my handle so I can't make any final conclusion just yet.

I know for sure that the frame is stiff in bending and torsion, light, stable in the curves and the position is somewhere between a Baron and a VK2 when we use the 451 front wheel. It should be closer to the Baron with the 406 front wheel.


Anonymous Anonymous said...

Why do you want to use 406 for racing? Isn't the 451 better for both?

9:01 PM  
Blogger Speedy said...

The 406 front wheel lowers the bike and allows the small riders to use a lowracer racer. The 451 front wheel should have a lower rolling resistance on bad roads but I have not noticed any real difference when they have the same pressure.

6:40 PM  

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