This is a BRAND NEW pair (that's a set of 2) aftermarket Yamaha Banshee COOL HEAD DOMES
These domes are brand new, available in any size (see our other listings for other sizes
These fit oem factory Banshee cylinders with a BIG BORE bore (66mm and above)
Designed for BANSHEE pistons (these have a 13 degree squish band)
Come with upper o-rings already installed
Will work on most aftermarket heads, Pro Design, NOSS, Chariot, VITO's, ModQuad, ADA, etc BUT NOT TRINITY