Dual Steel Ring Sprocket Black 51T for Yamaha

[G2 Ergonomics 80-50-Yam-bk-51 Dual Steel Ring Sprocket Black 51T for Yamaha by Banzai Moto]
We bring you the result of four years of development with GNCC factory racers.
There are many choices for rear sprockets, but G2 offers an advanced hybrid sprocket with an aluminum inner and a steel outer.
To maximize the bond between the materials, they are layered and riveted using a unique patented manufacturing process. The result is a strong yet lightweight product.
Features
More durable than aluminum, lighter than steel
7075 aluminum inner and C49 (JIS) high carbon steel outer
Aluminum and steel fastened together for unparalleled strength
No mud grooves or other processing to maintain the outer's strength
Steel outer is uniquely heat-treated to maintain durability
Compatible models
YAMAHA
・YZ125(X)/250(X) (99-18)
・YZ250/450FX (15-18)
・YZ250/400/426/450F (99-18)
・WR250R/X (08-18)
・WR400/426/450F (99-18)
・TTR230 (05-18)
*All models are US specifications.
Specifications
Color: Black
Teeth: 51
Notes
*Only the aluminum inner part is available in various colors. The steel outer is only available in black.
*The images are for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Thank you for your understanding.