BSA ZD Gold Star

A very special engine completed and ready to leave the workshop this week.

This classic BSA ZD Gold Star has been transformed from its original 350cc specification and expertly relined to 420cc. The build also features reprofiled camshafts and a gas-flowed cylinder head, giving it significantly improved breathing and performance while retaining the character of this iconic British single.

The engine is destined for a new-build flat tracker, where its combination of classic engineering and modern performance enhancements should make for a truly impressive machine.

We’re looking forward to seeing the finished bike once it’s built.

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