0615.47.590 - Ring Set - fits all bevel drive 450 singles & all 860 & 900cc bevel drive twins [860 GT/S/E, 900 GTS, Darmah, 900 SS].
SOLD EACH PISTON.
Order qty 1 for a 450 single, order qty 2 for a bevel drive twin. This is the 1st oversize (+0.020") or 86.5mm piston size ring kit.
NOTE: The compression ring has a coating on 1 side and that coating needs to be facing UP when you install it. Bare side faces DOWN.
86.50mm piston size. Ring Thicknesses: 1.50mm, 1.50mm, 4.50mm
