Jim Lee Commando

As for a Seeley being a good package, when I built mine, I had no idea what it could do. I learned to road race by crashing. With the Seeley, my mate and I both nearly had big crashes until I repkaced the fork yokes with ones with shorter offset. My mate was a very good rider and I knew he would not crash, so I did mot hesitate to let him ride it.
When I practice on a race circuit, it usually takes me about 5 laps before I am fast enough. Invariably, I get intio a corner too fast and begin to run wide. There is always a point in the corner where I need to stop trail braking and accelerate to get around. With most bikes, that is usually about two-thirds of the way around, Wth my bike, I brake just into the corner, then accelerate full blast all the way around it. When you can do that, your bike is unbeatable. The amount of power you have does not matter much .
A good bike creates a good rider.
There is a lot of hero worship in road racing, and most of the really fast guys will not tell you how to become faster.
In the 1970s I once rode a Manx - until then I did not know the real difference between good and bad handling. If you bought one in the 1950s, you would immrdiately be moved up at least one grade in the race classes.
 
Yesterday I measured the position of my 850 motor in the Mk3 Seeley frame - the post has not appeared.
The centre of the crankshaft is 440 cm ahead of the pivot and level with it. The motor is on a slight forward lean. The centre of the crank is also about 360 cm below tthe point where the frame tubes cross . From memory, the gearbox is positioned so that under acceleration the rear of the bike tends to rise to counteract the squat caused by weight transfer, As the bike squats the rake on the steering head increases and causes oversteer, with the bike staying more vertical. I think the mainshaft centre is about 6mm above the line from the crank centre to the centre of the rear wheel.
With the self steering, the rate of turn effect is controlled by the settings of the springs on the rear shocks. I use 80 lb inch springs.

I hope this helps.
 
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