Developed with “Stock” Class Drag and Circle Track Racers in mind
Permits the use of thin ring technology in pistons with wider grooves (i.e 5/64 5/64 3/16 & 1/16 1/16 3/16). Especially useful in classes that require the use of "stock" ring groove sizes as seen in certain drag race and circle track classes. Spacers available in .030" & .046" thickness
Permits use of 1.2mm" or .8mm" rings in 5/64 groove or .8mm" rings in 1/16 groove
