CMW Dogrings since 1996 available for Hewland MK gearboxes In all FF cars. Used by Class winners at Indy and other major events. Narrow lug profile for faster shifting. Works with regular large lug older gears and with newer narrow lug gear designs.
Used in gearboxes made from stock production cases using the Hewland gearsets and hub design. Sprite Spitfire etc.
Shipped postage paid to US and Canada for $110. ( US) each. paypal payment preferred for quick delivery.
The rings are heat treated 2 Rc points softer than others to damage the gears less by beginning drivers. Proven by school cars.
Wayne Mitchell CMW Enterprises, dogrings.com