Norton twins built to any state of tune. Cranks lightened and statically balanced (reduces vibration). Rods balanced and polished (minimises risk of breakage and eliminates a major source of excessive vibration). Breather conversions to reduce oil consumption. Heads reconditioned (including plug and exhaust threads) and flowed for performance and economy. Oversize valve guides machined and fitted. Valve seats machined and blended. Push-rod and rocker geometry adjusted. Oil pumps modified and reconditioned. Twin and single carburettor conversions. Electronic ignition kits supplied and fitted. Exchange reconditioned magnetos and dynamos. Camshafts and followers fitted to order, with appropriate adjustments to valve timing. Isolastics shimmed or converted to vernier adjustment. Commando or Dominator, racer or tourer, we can advise, supply and fit the most appropriate components and guarantee the results.