Why hasn't anyone done a motorcycle with a rear swingarm pivot in front of the engine so you could have a 35+" swingarm with massive mechanical grip and anti-wheelie properties while maintaining a short wheelbase... ?
because the "anti-wheelie properties" in long swingarms come from the extended wheelbase, not from the length of the swing arm alone
i made a coconut run version
The engine would sit behind the swing arm pic up point. Nothing much would have to change, expect maybe the swing arms will have to be wider than the chassis profile, or the engines will have to sit higher (bad trade off)
That's pretty much what Telelever does, it gives a swinging arm that's effectively six feet long
the wheely control and mechanical grip comes from the weight distribution.
with a normally lengthened swingarm you pretty much shift the weight more to the front.
if you mount the swingarm in front of the engine with the same wheelbase it is exactly the same regarding anti-wheely and mechanical grip
You want your weight over the swinging part (where your ass is), if the swing starts under the engine, the weight transfer when accelerating, stopping and turning gets all fucked up, people have been riding bikes for ages the idea must of come up before and there's a reason the swing arm is in this location in 2015
Because that wouldn't work.
Motorcycles wheelie because they apply so much torque at the wheel that it lifts the front of the bike up.
This in turn can only be prevented by shifting the center of mass from the rear wheel contact point and it has nothing to do how long the swingarm is for any given CM to rear wheel distance.
The Tesi concept was designed to separate braking and suspension forces i.e. near-zero diving on the brakes. The rear swingarm & suspension set up is conventional so I doubt it has any anti-willy properties.
Nice bike, fuggin expensive tho.