Description
The Thumpstar 110cc B4 is engineered for young riders or adults seeking a lightweight and responsive pit bike. It packs a 110cc HS 4-stroke engine paired with a semi-automatic 4-speed gearbox, making it an excellent step up for beginners ready for gear shifting without a manual clutch.
This model features PE 22mm carburetion and a standard 28mm exhaust system, providing a smooth and consistent power band. With conventional 630mm forks up front and a 285mm mono shock in the rear, the suspension is built to absorb hits on trails and tracks alike.
The steel 14” front and 12” rear rims with a rim lock in the back provide durability and confidence on rough terrain. It’s equipped with reliable disc brakes front and rear and a 0.80-gallon fuel tank for solid ride time. With a 31-inch seat height and only 143 lbs dry weight, the B4 is nimble and confidence-inspiring for a range of riders.
key features
- 110cc HS 4-stroke engine
- Semi-automatic 4-speed gearbox—no clutch
- Standard 28mm exhaust system
- PE 22mm carburetor
- Front & rear disc brakes with single piston calipers
- Steel wheels with rim lock for durability
- Seat height: 31″ — great for youth and smaller adults
- Top speed: 55mph (gearing dependent)
- Classic Thumpstar performance in a compact frame
