Install a second spark plug hole/thread in both heads, for all airheads without R45/R65.
This price only in combination with a cylinderhead overhaul or with a double ignition part number 125500.
Only in combination with a cylinderhead overhaul 111900.
Sportpiston only 410gramm, Size B 93,97
Sportpiston only 410gramm, Size C 93,98
For 1000cc Nikasil cylinders A from 1981 on, piston size 93.96 mm.
Cylinder, push rods and cylinder studs need to be shortened for this kit!