Use Coupon Code BOOST5 at Checkout!
Use the chat function below to ask us anything you need!
$38.00
Pay with Affirm on orders over $50. See if you qualify
Just like other wear and tear items, your factory rear shifter bushing will become soft overtime, creating a loose shifter feel and increased movement under all acceleration circumstances. The Kartboy unit eliminates this problem by tightening up any loose ends with their much stiffer design.
These are 100% guaranteed, and hand made in the USA. 
Thank you for posting a question!
Your question will appear on the site once we've answered it.
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
© 2025 New Provisions Racing. All rights reserved
Use Coupon Code BOOST5 at Checkout!
Use the chat function below to ask us anything you need!