1. Stock 125cc Pit Bike:
- Top Speed: Approximately 45-55 mph (72-88 km/h)
- This speed range applies to pit bikes with a standard 4-stroke engine, without any modifications or performance upgrades.
2. Modified 125cc Pit Bike:
- Top Speed: Up to 65-70 mph (105-113 km/h)
- With performance modifications such as a big bore kit, exhaust system, and carburetor tuning, a 125cc pit bike can achieve higher speeds.
3. Supermotard 125cc Pit Bike:
- Top Speed: Around 70-75 mph (113-121 km/h)
- Supermotard pit bikes are designed for both on-road and off-road use and typically have larger wheels and better suspension, enabling higher speeds on paved surfaces.
4. Racing 125cc Pit Bike:
- Top Speed: Up to 80-90 mph (129-145 km/h)
- Highly modified and race-prepped 125cc pit bikes built for competition can reach impressive speeds, but these are typically seen in closed-course racing environments.
It's important to note that the actual speed attained by a 125cc pit bike can vary based on factors like the rider's weight, riding conditions, terrain, and any additional modifications made to the bike.
