Boomerang Throttle Spring Kits

These are 3-Piece spring kits for all Boomerang Throttles. 

They come in two Types:

Standard (As supplied with all Boomerang Throttles purchased after 26/05/2025)

Three springs are supplied:

• 35mm x 0.8mm x 10mm (Good when used with >5mm Spacer)
• 30mm x 0.8mm x 10mm (Good when used with Up to 5mm Spacer)
• 25mm x 0.8mm x 10mm (Good when used with gasket only)

Heavy (Only available as an option)

Three springs are supplied:

• 35mm x 1.0mm x 10mm (Good when used with >5mm Spacer)
• 30mm x 1.0mm x 10mm (Good when used with Up to 5mm Spacer)
• 25mm x 1.0mm x 10mm (Good when used with gasket only)

All are Stainless Steel extension springs is supplied with Closed Double English ends to ensure it cannot come off!

Safety and Words of Wisdom

• It is YOUR responsibility to ensure the safe operation of this part and its legality on the roads of your country.  By building a custom bike you take on the responsibility for your work, respect that responsibility and show the next generation how to respect it so they continue the traditions!
• If you are not qualified to work on motorcycles please seen an approved professional to perform the work for you.
• I will not help you tune your carb, seriously! don't even call about that!
• I'm one bloke in a shed, in Australia, with a Wife, Dog, and 9-5 Job.  I'm not a corporation, I'm not rich, and I don't intend to become rich of the backs of you lot so my profit margins are LOW so that you can do cool shit.  Please remember this when dealing with me, lets all work together.