If you are looking for (much) more power for your 125cc 4-stroke scooter, this Racing 187cc aluminum Cylinder Unit d = 70mm Vespa LX / LXV / S ie 125cc could be the perfect choice. products are appreciated for many reasons: durability, reliability, excellent workmanship, superior quality materials, exceptional design, cutting-edge production techniques, etc. This 187cc tuning cylinder represents all this. Performance will be significantly improved: greater displacement means greater maximum speed, better response and acceleration. . Being an aluminum cylinder the cooling capacity is excellent. The cylinder is equipped with a Injection Control Force Master 2 ECU with 4 pre-programmed ignition curves to adapt to the engine configuration and driving style. Fuel injection settings can be manually adjusted by +/- 20% and maximum rpm is increased by 1,000 rpm. With this kit, the torque can go from 10.48 to 15.52Nm, and the power from 11hp to an incredible 20.8hp! Nikasil coated aluminum cylinder, 70mm stroke, 48.6mm Forged aluminum piston with 3 piston rings with 15mm piston pin and piston stops cylinder gasket kit Force Master 2 injection control unit The cylinder head is not included, so it is possible to use it with the cylinder head original.