This PKT Universal Puller will work with both new and old Rotax flywheels. It also fits Comer C-50/K-80/W60 engines. The puller has several hole patterns that fit IAME & several ICC engines as well. The puller is constructed with steel and has a hardened steel ball at the end of the main bolt to protect the end of the crankshaft. It also comes with an assortment of 12 metric bolts.