TM Designworks Australia Slider Extreme YAM 85 :

TM Designworks Chain Slider Extreme YAM YZ85 : (02->Current) Black

DIRT CROSS Front Chain Slider. 
Compression injected molded chain slider.

Suitable for all types of riding.
Developed with additional material and design shape to increase performance and durability. 
Chain guidance control wing keeps the chain in better alignment and minimizes tire buzz.
Friction reducing additives and UV protection to eliminate color fade.
Used by championship winning race teams worldwide.
Recommended by MXA, Dirt Bike and Dirt Rider magazines.
Made in the USA.
Patent Pending .