WELCOME TO TRANS TASMAN INDUSTRIES LIMITED.

WE MANUFACTURE THE WORLD'S STRONGEST & MOST RELIABLE MOTORCYCLE AND CAR RACING GEARBOXES.

*NEW* BSA RRT2 REPLICA GEARBOXES - 5 & 6 SPEED AVAILABLE NOW!

*NEW* GTO 4,5 & 6 SPEED CAR RACING GEARBOXES!

At Trans Tasman Industries Ltd we manufacture to order 4, 5 & 6 speed heavy duty gearboxes for use in Manx Norton, Matchless G50 or similar racing motorcycles.

We also manufacture 4 & 5 speed extra heavy duty gearboxes for use in big bore Norton Commando, or similar high powered racing motorcycles.

We have a kick start version for all our AMC casings. They are currently being used on Classic Moto Cross and Norton Commando road bikes.

Using a fresh design approach, we have built a completely new and modern, quick changing & reliable gearbox.

These gearboxes are available in Burman or AMC casings, and in either heat treated aluminium or magnesium.

Due to the strength & reliability of these gearboxes the affordability of these gearboxes is unparalleled.

Click on the products menu to view the range of gearboxes & ratios available.

Please do no hesitate to contact us for any further information.