Through years of extensive testing on both road and track, JS Motorsport has developed high-end products in a modern format that will increase a Norton’s performance, reliability and rideability. JSM lightweight pistons & rods give you the smooth running Norton of your dreams.
Showing 1–12 of 111 results
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Complete set of two Norton lightweight pistons 750 to 1007cc. For JSM longer rods.
$499.00 Select options This product has multiple variants. The options may be chosen on the product page -
Complete set of two Norton Ultra Hi CR domed pistons 750 to 1007cc. For JSM longer rods.
$599.00 Select options This product has multiple variants. The options may be chosen on the product page -
Complete set of two forged Norton lightweight pistons 750 to 1007cc for stock Norton rods (most sizes in stock).
$499.00 Select options This product has multiple variants. The options may be chosen on the product page -
Complete set of two Norton Ultra Hi CR domed pistons 750 to 1007cc for stock Norton rods.
$599.00 Select options This product has multiple variants. The options may be chosen on the product page -
Complete set of two Dominator 500 to 650 JE pistons for longer JS Ultralight Carrillo rods or stock rods (contact us for pricing). Some sizes in stock for $599 a pair.
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Graphite Piston skirt coating for two pistons. More durable than Molly and other coatings. Recommended for all uncoated pistons for tighter installation clearance, reduced friction and longer life. Note that many of our flat top pistons come precoated at no extra charge. All Domni, domed and stock rod pistons are uncoated.
$159.00 Add to cart -
Regular style piston rings for two lightweight pistons (JSM only)
$84.00 Select options This product has multiple variants. The options may be chosen on the product page -
Totalseal type gapless ring upgrade for two pistons. You must add this option to your order of regular rings or pistons. Expect improved compression/sealing and reduced oil consumption. Because of increased vacuum its important to use JSM spring loaded guide seals.
$74.00 Add to cart -
TiN (titanium nitride) ring coating upgrade (2) for Nikasil lined alum cylinder walls
$79.00 Add to cart -
Two high strength .708″ DLC pins (diamond like coating)
$169.00 Select options This product has multiple variants. The options may be chosen on the product page -
DLC (diamond like coating only) for two stock .687″ diameter pins.
$99.00 Add to cart
