150cc Piston Cylinder Barrel Engine Kit Compatible with Aprilia Piaggio 125 4T TUONO RS RX SX

Includes:
Cylinder, piston, rings, piston pin, clips, top end gasket kit

Fits Models:
Aprilia RS4, RX, SX, Derbi GPR, Senda, Malaguti RST, XSM, XTM, F.B. Mondial SMX

Model Years:
Please verify specific years with seller

Submodels:
RS4, RX, SX variants; GPR sport models; Senda off-road; RST, XSM, XTM street/sport; SMX maxi-scooter

Engine Options:
4-Stroke 150cc

Description:
Complete 150cc big bore cylinder kit with 63.6mm bore for top-end rebuild. Includes aluminum cylinder with cast iron jacket, piston, rings, pin, clips, and performance gasket set. Perfect replacement for seized pistons, low compression, or blown cylinders. Delivers reliable performance upgrade from stock 125cc. 15mm steel piston pin ensures durability. Fits Aprilia RS4/RX/SX, Derbi GPR/Senda, Malaguti RST/XSM/XTM, and F.B. Mondial SMX 4-stroke models. Engineered for improved cooling and longevity.

Features:
¥ 150cc displacement upgrade with 63.6mm big bore sizing
¥ Aluminum cylinder with internal cast iron jacket for superior cooling
¥ Complete rebuild kit with all necessary components included
¥ Performance gasket materials for enhanced durability and reliability
¥ Direct replacement for damaged or seized cylinders
¥ Compatible with Aprilia, Derbi, Malaguti, and F.B. Mondial 4-stroke models