motorcycle parts C100 piston kit

Specifications Strictly quality controlling system ensure all our motorcycle parts high performance.

YK brand motorcycle parts adopt top quality professional parts manufacturer. These parts were adopted by Chinese and world famous motorcycle manufacturer, such asYAHAMA,WYHONDA, Italian PIAGO and other chinese-foreign joint companies, and HAOJUE, LIFAN, LONCIN etc.We can see its top quality and excellent service performance are already approvaled by hereinbefore companies.   YK PISTON SPECIFICATION:   Piston Contour:the disparity of our piston contour is controlled in 0.02mm compared with the theoretical Value,To guarantee the perfect air-proof and directional performace.   Machining Precision: 1)Piston Skirt Size:-0.02~~-0.03mm    2) Ring Groove Height:+0.005~+0.015mm                                      3) Pin-hole Diameter:+0.002~+0.008mm                                          4) Pin-hole Roughness:Ra0.4                                                5) Verticality of Pin-hole to Skirt shaft:100:0.035.                                  Based on the above machining precision, our piston takes a excellent using performance.