Me.I am little short fat 5'8'' with a cornish accent.L/L forks were invented by guy named Earle in about 1930's or 40's. BMW did adopt them for road use in the 60's as BMW/Steib sports outfit was extremely popular in Germany.
These L/L forks work on the same basic priciple.The biggest difference is the length of of the actual front link from the pivots point to the front wheel spindle.If you closely you can see the brake torsion arm connection position and the caliper mounted below the wheel spindle results in the front end remaining at a constant height under any load.It also gives you adjustable trail which is the distance at ground leve between a 90 degree vertical line drawn from ground level through the wheel spindle a straightline drawn from the head stock angle to ground level Looks like an inverted letter Y with one straight side.Road solos run about 3 to 4 inches of trail which results in the Ackerman principle of self centralising steering.You don't need that much on an outfit so most racing outfits run about 1" of trail which gives you light steering with some feel to it.
The steering geometery is a ver interesting subject.
I thought that Red Bull were using a similair suspension geometery on their car to acheive a constant ride height irrespective of load.
One other point about L/L forks if you do get it wrong they can lift up under braking and the suspension locks solid.
I only did four races in the chair, I am mad but not certifiable.I very quickly bought my own outfit and held the bars and twistgrip myself. And the feeling from an outfit in full blooded drift on a left hander has only one equal
