I can’t find any info on what size sprockets this bike is suppose to have from the factory could someone point me in the right direction? I can not figure out why my speedometer is off. And believe it has to be sprocket size.

thanks

 

17 Front 42 rear. Alternately the plastic drive gear for the speedo that lives in the sprocket cover is done for

 

What year ?

Stock on Mk2 & Mk 3 89 -> 1996 (99 EU) was 17/42

Stock on MK1 87,88 was 17 / 43

But where a MK1 (87/88) has it's speedo driven directly from the
front wheel , it would not matter what sprockets you have on it.

So guess we must be talking Mk2 or Mk3 ! or a modified MK1

 

1993 the plastic drive gear is great condition. when i am doing 70 ish mph. it reads 125 ish probably i am thinking its probably a problem in the insterment cluster.

 

too small a front and too large a rear sprocket in my opinion

Somebody may have set is up as a wheelie machine.

Speedo's usually work or are intermittent working or just plain don't work

Never seen 'em read wrong at the meter - but there's always a first for
everything