Material: Metal Model Compatibility: CBR 250, CBR 14, CBR 17, MC 14, MC 17, KT 7 Bore Size Options: 48.5mm, 48.75mm, 49mm Kit Contents: Full Piston Rings Set Heat Resistance: 105℃ Installation: Easy to install with detailed instructions Upgrade your motorcycle engine with a piston rings full kit designed for improved performance and durability.Constructed from metal, these piston rings maintain consistent under various riding conditions.The kit fits multiple models including CBR 250, CBR 14, CBR 17, MC 14, MC 17, and KT 7.Available bore sizes are 48.5mm, 48.75mm, and 49mm, allowing selection based on your engine specifications.The installation process is straightforward with clear instructions included, enabling most users to complete the upgrade without professional help.With a heat resistance rating of 105℃, the rings are built to endure typical operating temperatures encountered during regular use.This piston ring set supports engine efficiency and function, making it a practical choice for routine maintenance or repair.