"RST1875" refers to a specific model series of the Supersprox Stealth Rear Sprocket. 

This product is a high-performance, dual-material sprocket designed for street and dirt bikes, primarily fitting various Yamaha models. 

Key features of the Supersprox Stealth Rear Sprocket (RST1875 series) include:

Dual Material Construction: It combines a lightweight 7075-T651 aluminum core with durable steel teeth. 

Durability: The steel teeth are designed to last up to three times longer than standard aluminum sprockets. 

Design: It features a larger tooth radius to reduce chain friction and extend chain life. 

Fitment: The specific sprocket in the image is marked for Yamaha and appears to have 49 teeth (RST1875:49) 

• Upgrade your motorcycle drive system and extend chain system wear life
• Specifically designed for street and off-road use
• Durable steel teeth, can be expected to last 3 times longer than an aluminum sprocket
• The only sprocket in the world with Tri-Zink electro plating, 100% eliminating dangerous abrasive oxidation
• Aluminum core reduces rotational mass, allowing faster acceleration
• Only Supersprox forged stainess steel rivet technology, has been proven by world champions in motorcycle racing

selling as pictured.

more than welcome to pick up at shop in butler pa & save shipping.

031526 cg