Adjust suspension

[alexandreperei]

hi everyone, i have QingQi QM200-2D but here in Portugal is 125cc and not 200cc, and i like to adjust front and rear suspension, how can i do this?

The front and rear suspensions are very, but VERY soft.....

[zhu]

you can stiffen up the front by putting a spacer on top of the spring
a piece of steel tube of suitable diameter will do the job
if its very soft now maybe start with a tube about 50mm long

the rear shock may have a threaded ring to adjust the preload
in which case just screw it up
if no adjuster then you can make a spacer
but you will need a lathe to make it
or go to a wrecker and try to find a stiffer spring

[alexandreperei]

Thanks for your answer, can anyone tell me what kind of oil i can put on front fork?

I really need to put some oil and on manuals don't say anything about front fork oil, and i don't know what kind of oil i most buy. Please it's urgent....

[ChinaV]

Also check your rear shock and see if it has a place to add air. You will need a special pump to get the right pressure.

The oil you need is called "fork oil". Try 10 weight and if it still feels too soft go to 20 weight.

Cheers!
ChinaV

[alexandreperei]

Also check your rear shock and see if it has a place to add air. You will need a special pump to get the right pressure.

The oil you need is called "fork oil". Try 10 weight and if it still feels too soft go to 20 weight.

Cheers!
ChinaV

The rear shock it's simple don't have any adjuster or a place to add air.

But thw front fork oil it's all about weight? Don't have any specification for this bike?