Reproduction / Custom made piston ring to fit:
O.S. MAX 50 HZ,
O.S. MAX 55 HZ,
O.S. MAX 61 SF,
O.S. MAX 61 RF,
O.S. MAX 61 SF-H,
O.S. MAX 61 RF-H,
O.S. MAX 61 RF HANNO SPECIAL MK2
TT REDLINE 56
(Same piston ring fits all the above engines)
Turned from fine grained Meehanite cast iron bar, Piston ring blank is then split and gapped, heat treated to relieve stress and set the open ring gap, then finally the ring gap is rechecked in a bore gauge for a perfect fit.
I have many other makes and model of Piston Rings for older and newer engines, if there are any your after give me a shout... i may just have one!
PLEASE NOTE: THESE ARE ALL REPRODUCTION PISTON RINGS