Thread: Two wheels, poles apart--

It appears to be a "unilever" system, that top pair of arms is actually connected to the top of the shocker system, NOT, to the bikes frame. It also looks a bit weak to me, but it is from Bimoto so it should be pretty solid, looks like the main swingarm section actually is mounted to and pivots from the back of the gearbox.

I dont get it either, just looks wrong.
Drawing is the DB7 but the same setup

Pedro: It does appear the spring/shock unit would extend on the upwards movement of the swing arm. But it may be compressed by the linkage seen under the lower part of the swing arm. It is hard to tell from the images.

Les

Love the Guzzi. My cousin had an 850 with an automatic tranny ( He lost his left foot in a farming accident) and he would ride all over the country. It was a sweet bike. Auto trans on bikes are weird. Great on highway and for commuting. Just takes some getting use to.

Originally Posted by goingbush

I dont get it either, just looks wrong.
Drawing is the DB7 but the same setup

I can't figure it out either. There does seem to be a lot of wearpoints in there. I wonder what that Z linkage on the bottom does?

Maybe one needs to observe the real thing to deduce the action.

I havent worked it out but I can say it certainly works well on my bimota

Knowing nothing about the bike, from the pics it could be an expansion-type shock absorber. I have one underslung on the Buell M2 Cyclone at home, though Buell went to a more conventional compression-type shock on my XB.

Originally Posted by 42rangie

Pedro: It does appear the spring/shock unit would extend on the upwards movement of the swing arm. But it may be compressed by the linkage seen under the lower part of the swing arm. It is hard to tell from the images.

Les

Close, it's a pretty standard compression type system, the top arm holds the shocker in place while the lower Z link does the actual compression work acting on the bottom of the system. Therefore the shocker actually does compress with upward movement of the swinging arm system.