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 85–96 of 111 results
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7″ Wrench for fork extensions with 4mm pin
$19.00 Add to cart -
Ikon shocks (2) for Commandos, formally known as “Koni”
$299.00 Add to cart -
Ikon shocks (2) for Featherbed frames, formally known as “Koni”
$299.00 Select options This product has multiple variants. The options may be chosen on the product page -
Complete damper upgrade kit for Norton Roadholder forks. Also see aluminum sleeves and slippery bushings.
$49.00 Select options This product has multiple variants. The options may be chosen on the product page -
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Sump reed valve breather
$299.00 Select options This product has multiple variants. The options may be chosen on the product page -
Case reed valve breather
$199.00 Select options This product has multiple variants. The options may be chosen on the product page -
Universal inline reed valve breather
$199.00 Select options This product has multiple variants. The options may be chosen on the product page -
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Keihin 33mm CRS carb kit for Commandos or Featherbeds.
$1,199.00 Select options This product has multiple variants. The options may be chosen on the product page -
Plumbing kit for smoothbore carbs including ethanol resistant Tygon 4040 fuel line, 90 deg filter and T fitting, petcocks not included.
$19.00 Add to cart -
Aircleaner for Keihin smoothbore carbs or Amals (won’t fit Atlas oil tanks)
$59.00 Select options This product has multiple variants. The options may be chosen on the product page
