MVT Iron Max Pro 90cc Derbi D50B0

MVT Iron Max Pro 90cc Derbi D50B0

The MVT Iron Pro Max 90cc kit combines a high-performance cylinder with a perfectly matched crankshaft, delivering brutal torque and pulling power without the need for extreme rpm.

The durable cast iron cylinder features a 7-port design with boost ports integrated into the exhaust for improved gas flow. Paired with a high-compression aluminum head and optimized combustion chamber geometry, the kit produces strong torque even at low revs. The double-ring piston with a 13 mm wrist pin ensures excellent durability and consistent performance over time.

Included is the MVT SC Racing crankshaft, built with a 44.8 mm stroke and full-circle design to increase pre-compression. Its precision balancing reduces vibrations and guarantees smooth power delivery.

For maximum performance, we recommend using a 24 mm or larger carburetor together with a matching 90cc exhaust system.