f@@ked Escort rear shock

[double h]

Ok,i have posted up another thread about handling issues but thought I would start again with I fine tooth combe and ask you guys in the know the basic handling. My question is this, my rear shock is a bit f@@ked, when I rev the bike it compresses. In my own head I cant see how this would make the scoot handle shite (it may be bouncy )but that's all I see.
Educate me

[hendy]

Depends exactly what you mean by "handles shite", but one example is....

Imagine you're leant over mid-corner. Your suspension encounters a bump which compresses the rear spring. However you've implied that the spring constant is lower than ideal, so the spring "over compresses". The result is that your steering angle is too large (a bit like a chopper) so your bike tries to run wide.

Once you're into a turn (especially fast ones), the rear wheel and your throttle play as much or more of a part in your steering than your handlebars and front wheel. Think of those pictures of bike racers coming out of corners still leant over but with the front wheel off the ground.

There are loads of ways to explain why the rear suspension plays just as big a role as the front and I just happen to have picked that one, but try to imagine a quadrilateral where two of the sides represent the length of your forks and rear shock. You can see that if one or both varies length in an unpredictable manner then your handling will be equally erratic.

Hope that helps.

[double h]

Depends exactly what you mean by "handles shite", but one example is....

Imagine you're leant over mid-corner. Your suspension encounters a bump which compresses the rear spring. However you've implied that the spring constant is lower than ideal, so the spring "over compresses". The result is that your steering angle is too large (a bit like a chopper) so your bike tries to run wide.

Once you're into a turn (especially fast ones), the rear wheel and your throttle play as much or more of a part in your steering than your handlebars and front wheel. Think of those pictures of bike racers coming out of corners still leant over but with the front wheel off the ground.

There are loads of ways to explain why the rear suspension plays just as big a role as the front and I just happen to have picked that one, but try to imagine a quadrilateral where two of the sides represent the length of your forks and rear shock. You can see that if one or both varies length in an unpredictable manner then your handling will be equally erratic.

Hope that helps.

Aye, i see what you are saying, the rear affects the front geometry. Cheers for that.

[HxPaul]

How do you know that your rear shock is f@@ked ? When you rev the scooter and it compresses the back end doesn't mean that the shock isn't working.As you said in your last post,you're used to riding Vespa's,it may be that Lambrettas handle completely different to them.

[Muppet]

my escort compressed when revved spring n dampner was shot,

[double h]

How do you know that your rear shock is f@@ked ? When you rev the scooter and it compresses the back end doesn't mean that the shock isn't working.As you said in your last post,you're used to riding Vespa's,it may be that Lambrettas handle completely different to them.

I don't know. I also ride Motorcycles though I cant compare 10" to 17". I was under the impression that Lammys handled better than vespas? That's why im on here trying to work things out bit by bit without throwing cash at it to see no improvement because its got my wallet by the balls already.

[double h]

my escort compressed when revved spring n dampner was shot,

Thanks for that, my shocks f@@ked as I thought and have a second opinion so that's next on the shopping list. These Indian shopping mopeds are a real money pit. Fun to ride though