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high speed steel 04B Motorcycle roller chain
All the materials are high- qualit alloy steel in order to improve the wearability and fatigue resistance. The width of chain plates' midpart and thickness of plates are enlarged. The bushings are made of bored seamless steel tube. Hi-quality lubricating oil. The clearance between the bushing and the pin is affused with hi-quality lubricating oil, which is also pressurized with an O-Shaped,X -shaped or M-shaped rubber quoit so as to keep the good lubrication and avoid the chain's abrasion and extension when operating at a high speed.
high speed steel 04B Motorcycle roller chain