JS Ultralight Rods & Pistons

Ultralight Rods & Pistons

The bushless ultralight rod below was designed for 500 to 650 Dominators and long stroke 750s up to 75 hp. They weigh 10 grams less on the small end than our regular bushless rod. Small end = 95 grams. Big end = 307 grams. This ultralight rod provides maximum smoothness.  DLC pins only.

ultralight rod

68 to 69.5mm flat top piston are approx 9:1 C.R. for 650SS Dominators. They weigh approx 170 grams and go with our Ultralight 6.4″ length rods.

66 – 68.5mm flat top pistons for 500 Dominator

66 to 67.5mm flat top pistons are approx 7.5 C.R. for a 500cc Dominator. They weigh about 170 grams and go with our Ultralight 6.4″ length rods (6.4″ Ultralight rods for 1.5″ journals are available on special order)..

69mm flat

68 – 69.5mm Hi C.R domed pistons for 600 & 650ss Dominator

66 to 68.5mm centrally domed piston below are approx 10:1 C.R. for 600 & 650 Dominators. They weigh approx 165 grams and go with our Ultralight 6.4″ length rods.

69mm dome

66 – 67.5mm Hi C.R. domed pistons for 500 Dominator

66 to 67.5mm centrally domed piston are approx 9:1 C.R. for a 500cc Dominator. They weigh approx 165 grams and go with our Ultralight 6.4″ length rods (6.4″ Ultralight rods for 1.5″ journals are available on special order).

67mm 170gm pistons

66 – 67.5mm Extra Hi C.R. domed racing pistons for 500 Dominator

Extra high compression 66 to 67.5mm domed piston below is approx 10.5 C.R. for a racing 500cc Dominator. They weigh less than stock.

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