Best Transmission Chain

UPANBIKE Bike Narrow Wide Chainring 104 BCD Round Shape Single Chain Ring 32T 34T 36T 38T

1.HIGH STRENGTH & LIGHT WEIGHT:We use the upgraded solid 7075-T6 aluminum alloy for the mountain bike chainring, light weight but also high strength..
2.NARROW WIDE TOOTH:The narrow wide tooth design, increasing the contact area with the chain greatly, so that each of the teeth can be fully inserted into the chain, increase the grasp force, make you no longer worried about the chain dorpped, easy to pass through the bumpy road..
3.SINGLE CHAINRING:Through the modification single speed chainrings, reduced the transmission system greatly ,completely abandoned the complex variable speed system,reduce the bike weight at least 1kg, looks more compact and simple, and also greatly improve your speed..
4.CNC PRECISION PROCESS:CNC precision machining and anodic oxidation electroplating, keep medals smooth surface, bright color, not faded and corrosion resistance..
5.FOR ALL KINDS OF 104BCD CRANKS:This speed chainring slice disc screw nail with no sink design can be using for the original screw directly ,don't need to spend extra money to buy the screw. This single chainring be used for ALL KINDS OF 104BCD cranks..

Developed for use in 71 and newer XR and XL models where transmission and primary chain case share a common lubricant.
Blended with extreme pressure additives for smooth shifting throughout the RPM range.
Specifically blended for high performance gear boxes.
Meets or exceeds API GL-5 classification.