We stock progressive fork springs for most Norton, Triumph and BSA models 1954-82. Progressive wound springs offer lighter springing for increased compliance in the initial part of the suspension travel, backed up with heavier springing in the later stages to reduce bottoming. No need for compromise, it's win-win with these.
Made in England with modern gas/oil technology, yet still retain the classic appearance of the Girling units they are designed to replace. We stock a full range to suit most British bikes with swinging arm rear suspension.