Engine & Cylinder Parts
High-performance Engine Components
High-performance engine components, including cylinder kits, pistons, gaskets, crankshafts, and connecting rods, are designed to boost engine displacement and durability. Uses high-strength metals (iron or aluminum alloys with ceramic coatings) for superior wear resistance and heat dissipation. Precision machining ensures tight seals and efficient combustion for reliable power output. Forged long-stroke crank designs increase compression and torque for greater engine performance.
Cylinder Kit
Performance Cylinder Kits
TWH cylinder kits are available in a variety of bore sizes to meet both standard replacement and performance upgrade needs. Selected models are also offered in ceramic-coated versions for enhanced heat resistance and durability. Precision-crafted and quality-tested, our cylinder kits are trusted by riders across multiple markets.
Gasket Set
TWH gasket sets are designed to provide reliable sealing in high-temperature and high-pressure environments. Each set includes essential gaskets for engine assembly and is produced with durable, heat-resistant materials to ensure long-term performance and prevent leakage.
Piston Kit
TWH piston kits are engineered for consistent combustion and optimal engine performance. We offer both standard cast pistons and forged piston options for selected models, providing enhanced strength and durability under high-load conditions. Each kit is manufactured to precise specifications for reliable fitment.
Crankshaft
TWH crankshafts are available in both standard stroke and extended stroke specifications, offering flexibility for stock replacement or power upgrades. We also provide full-coverage and bakelite-based (phenolic resin) variants, delivering enhanced durability and precise fitment for a wide range of scooter engines.