Sorry if this has been covered before but coundn't see anything recent.

What tyres do you recomend and is it better to stick to standard sizes or can you go oversize on the rear?

Also, am I right in saying that the rear paddock stand bobbin are M8 size bolts?

Thanks

I have supercorsa's on my gk76a, I highly rate them. If i remember correctly M8 is correct.

which model have you?
73a 18" rear wheel
73a sp 17" rear wheel
76a 17" with 160/60/17

It also depends on what sort of rider you are.
If its all about performance road and track then
Bridgestone 090
similar in performance but slightly longer warm up then rensports or supercorsas
remember you only need a H rated tyre

If you want longer life but sporty feel then bridgestone 092
Stay with standard sizes. unless you want to slow down turn in on the front. In that case go to a 70 profile instead of the 60 on the 76a