Tech tip: Piston grooves vs piston rings

or replace them when installing higher/wider handlebars

Complete replacements for 86-up models with stock large 3-1/4" flat lens turn signals

5/16 (8mm) fuel hose

Delivering the best of both worlds

Thundermax ECM 08-13 Touring TBW Top End Parts Twin Cam Tech tip: Piston grooves vsFitments 08 13 Touring, 09 13 Trike Description Would you like to have full control of your EFI system, freedom to make major or minor adjustments without the need for a dyno or a degree in computer technology? Here is a simple solution ThunderMax with Auto Tune! The ThunderMax is a product that replaces the factory module and is not an add on box or signal modifier. The ThunderMax is purpose built to deliver uncompromising performance. Just how easy