The original SiguTECH piston for our clutch slave cylinder 690 is proven over many years.
This piston is made of durable F50 aluminum with a hardend steelball. It has 2 sealing rings for dot4 or mineraloil. The 2 o-rings prevent this piston from tilting.
This piston dosn't fit on the original KTM 690 clutch slave cylinder.
The piston will be delivered with sealings and the spring.