RD125LC Balance Shaft Nut.

[andysh2]

Hi All,
I'm looking for a replacement balance shaft nut but there seems to be two types of nut mines the one that's rebated out part number 90179-12181, I've also noticed there are two different types of balance shaft gear?? Why the two differences? The new nut I received is the un-rebated type.

Thanks Andy

[wonkywheel]

The mk1 and mk2 have slighty different balance shafts- slight mod.
The Mk2 nut part no: 90170 12337

[jorjasfather]

The mk1 is a solid gear and mk2 is a three pace which is riveted and wear I prefer the mk1

[andysh2]

Mine has the Mk1 gear fitted, all sorted now got a brand new nut fitted.