MRF 120 engine - what is worth knowing about the unit installed on popular pit bikes?

The four-stroke MRF 120 engine is a successful power unit, the model has a lot in common with the MRF 140. It provides the motorcycle with optimal power, delivering a lot of riding pleasure and at the same time is safe and its performance is stable. We present the most important information about the engine and the MRF 120 pit bike. 

MRF 120 engine - technical data

The MRF 120 Lifan engine is a four-stroke, two-valve engine. It develops a power of 9 hp. at 7800 rpm, has a bore of 52,4 mm, a piston stroke of 55,5 mm and a compression ratio of 9.0:1. The power unit requires unleaded gasoline and 10W-40 semi-synthetic oil to operate. Fuel tank 3,5 liters.

The engine is also equipped with a CDI ignition system and a kickstarter. A manual clutch and a KMS 420 chain drive are also used. The driver can switch between 4 gears in the H-1-2-3-4 system. The engine is equipped with a PZ26 mm carburetor. 

What characterizes the MRF 120 pit bike?

It is also worth getting acquainted not only with the specifics of the drive, but also with the pit bike itself. On the MRF 120, the front suspension is equipped with 660 mm long UPSD shocks and the rear suspension is 280 mm long.

What other information might be helpful before buying?

The engineers working on this series also decided to install a steel swingarm as well as 210mm front disc brakes with 2-piston caliper and rear 200mm disc brakes with 1-piston caliper. The MRF 120 also includes a 102 cm high aluminum handlebar.

The last key details to mention about the MRF 120 powered pit bike are the 73cm seat height, 113cm wheelbase and 270mm ground clearance. The two-wheeled motorcycle is also characterized by a low weight - 63 kg, as well as the presence of flexible brake and clutch levers. 

The 120cc MRF engine gets good reviews because the 4T unit is economical, known for stable operation and optimum performance. It is also characterized by the fact that, with proper, regular maintenance, it serves the user for a really long time - without any problems.

Combined with the original appearance of the most two-wheeled vehicle, which uses thoughtful design solutions, this engine will definitely be a good choice. That's why you should opt for this drive used in the MRF 120 minicross.