The parts have been made from the original drawings but by modern CNC machines, using quality materials unavailable originally. This oil pump drive gear set comprises the driving gear (70-7248), intermediate gear (70-7246, including bush 70-6885) and driven gear (71-4237). The gears will fit T150/T160 and Rocket Three models with the later, taper drive pumps but not the early ‘D’ type driven gear. Norman was part of Triumph's Experimental Department during the successful 1971 season, when it won the Production and F1 TT races, the Bol d'Or and Daytona 200. Identified by product code TOI12, a set of three costs £128 plus VAT. Call 01926 832345 or visit www.normanhyde.co.uk for details.Enjoy more Classic Bike Guide reading in the monthly magazine. Click here to subscribe.