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Features
- CNC machined from lightweight 7075-T6 aluminum alloy using advanced techniques
- Full sprocket treatment with Type III black anodized hard-coat for long-lasting durability
- Proprietary matte black anodized finish
- Proprietary tooth profile
- Ultra-smooth tooth transition geometry
- Approximately 72% lighter than the stock Yamaha rear sprocket setup
- Available in 40-48 tooth profiles
Description
Designed and built by race engineers in the TST WORX race program, our Lightweight Aluminum Rear Sprocket was developed with the harshest riding conditions in mind. Our use of the best materials and manufacturing procedures ensure practical longevity while maximizing weight loss for increased performance and power delivery. The blend of high-quality material, advanced hardening procedures, lightweight design, proprietary tooth profile, and ultra-smooth tooth transitions ensure exceptional performance even during the most demanding riding situations.
We produce every TST WORX Rear Sprocket from 7075-T6 aluminum alloy. This high-quality material is CNC machined using a propriety holding plate process developed to eliminate vibration during the machining process and ensuring extreme precision and material integrity. We then treat the entire rear sprocket with a matte black Type III hard coat anodizing process that penetrates the aluminum and builds an ultra-hard surface layer, resulting in a light weight sprocket with exceptional durability characteristics capable of taking on the rigorous demands of the street and track. It's time to give your Yamaha the sprocket and performance it deserves.
Application Spec Sheet
| Model | Years | OEM Pitch | OEM Front Sprocket | OEM Rear Sprocket | Chain Length |
| Yamaha YZF-R3 | 2015 - Current | 520 | 14 | 43 | 112 |
| Yamaha MT-03 | 2020 - Current | 520 | 14 | 43 | 112 |
WORX Rear Sprocket Weight Guide
| Sprocket Tooth Count | Weight (ounces) |
| 40 Teeth | 7.97 ounces |
| 41 Teeth | 8.47 ounces |
| 42 Teeth | 8.82 ounces |
| 43 Teeth | 9.17 ounces |
| 44 Teeth | 9.59 ounces |
| 45 Teeth | 10.09 ounces |
| 46 Teeth | 10.45 ounces |
| 47 Teeth | 10.87 ounces |
| 48 Teeth | 11.31 ounces |
Features
- CNC machined from lightweight 7075-T6 aluminum alloy using advanced techniques
- Full sprocket treatment with Type III black anodized hard-coat for long-lasting durability
- Proprietary matte black anodized finish
- Proprietary tooth profile
- Ultra-smooth tooth transition geometry
- Approximately 72% lighter than the stock Yamaha rear sprocket setup
- Available in 40-48 tooth profiles
Description
Designed and built by race engineers in the TST WORX race program, our Lightweight Aluminum Rear Sprocket was developed with the harshest riding conditions in mind. Our use of the best materials and manufacturing procedures ensure practical longevity while maximizing weight loss for increased performance and power delivery. The blend of high-quality material, advanced hardening procedures, lightweight design, proprietary tooth profile, and ultra-smooth tooth transitions ensure exceptional performance even during the most demanding riding situations.
We produce every TST WORX Rear Sprocket from 7075-T6 aluminum alloy. This high-quality material is CNC machined using a propriety holding plate process developed to eliminate vibration during the machining process and ensuring extreme precision and material integrity. We then treat the entire rear sprocket with a matte black Type III hard coat anodizing process that penetrates the aluminum and builds an ultra-hard surface layer, resulting in a light weight sprocket with exceptional durability characteristics capable of taking on the rigorous demands of the street and track. It's time to give your Yamaha the sprocket and performance it deserves.
Application Spec Sheet
| Model | Years | OEM Pitch | OEM Front Sprocket | OEM Rear Sprocket | Chain Length |
| Yamaha YZF-R3 | 2015 - Current | 520 | 14 | 43 | 112 |
| Yamaha MT-03 | 2020 - Current | 520 | 14 | 43 | 112 |
WORX Rear Sprocket Weight Guide
| Sprocket Tooth Count | Weight (ounces) |
| 40 Teeth | 7.97 ounces |
| 41 Teeth | 8.47 ounces |
| 42 Teeth | 8.82 ounces |
| 43 Teeth | 9.17 ounces |
| 44 Teeth | 9.59 ounces |
| 45 Teeth | 10.09 ounces |
| 46 Teeth | 10.45 ounces |
| 47 Teeth | 10.87 ounces |
| 48 Teeth | 11.31 ounces |
From the garage to the street.
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Let customers speak for us
At first I did not think it worked because the turn signals were off. I would turn left and the right blinker would go off. But then, I realized how dumb i was. I switched the two around and it worked flawlessly. I am genuinely impressed on how well it works. The flashing when braking is a nice addition. I HIGHLY recommend this product.
Was weary of the size at first but once i received was a perfect fit!!++
Great product!! Quick delivery
I just bought another grom. The first upgrade I recommend is the TST chain adjusters. They make life so much easier when its time to do some chain maintenance. 100% 5 outta 5 stars. Can’t recommend these enough. Thanks to the team over at TST. Yall rock 🤙🏼
Just follow their yt vid its perfect, took me 25 mins to install
Bit of install but damn does it make the exhaust look better. Wasnt sure if id have enough room but just held the exhast down and body help mount it after installing the tailight.
