Dual Steel Ring Sprocket Black 49 Teeth for Yamaha

【G2 Ergonomics 80-50-Yam-bk-49 Dual Steel Ring Sprocket Black 49T for Yamaha by Bonsai Moto】
We are proud to present the result of 4 years of development with GNCC factory racers.
While there are many choices for rear sprockets, G2 offers an advanced hybrid sprocket made with an inner aluminum and outer steel ring.
To maximize the bond between the materials, they are bonded and riveted using our unique, patented manufacturing process. The result is strong yet lightweight.
Features
More durable than aluminum, lighter than steel
7075 aluminum inner and C49 (JIS) high-carbon steel outer
Aluminum and steel bonded for unmatched strength
No mud grooves or other processing on the outer ring to maintain strength
Steel outer ring 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 for US specifications.
Specifications
Color: Black
Teeth: 49
Important Notes
*Only the aluminum inner part can be selected for color. The steel outer ring is only available in black.
*Images are for illustration purposes only. Product designs and specifications shown are subject to change without notice. Thank you for your understanding.