BuyOld Engineering


Buyold Engineering is a small Machine Shop based in South East Queensland, Australia, specialising predominately in pre-war motorcycle sprockets.

All items manufactured replicate the original design and include even the smallest of factory details. This is achieved with the use of high precision 3D scanning and industry leading Cad-Cam software. 

BuyOld Engineering sprockets start life as a piece of 1045 or 4140 medium carbon bar stock bandsaw cut to width on site. They are then CNC machined and as required, broached or flame hardened in-house.  The reproduced sprockets have superior wear resistance whilst maintaining the original appearance ensuring the value of your classic will increase equally in resale and enjoyment.

BuyOld Engineering - BSA L28 Super Sport Custom

Sellicks Beach Historic Motorcycle Races - 2019 Class Winner 

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October 2016 (Before restoration)

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Sellicks Beach Class Winner 2019

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BuyOld Team Rider (Mark Barber 2019)

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