Supersprox Powerdrive Steel Front Countershaft Sprocket (15-Tooth / 520 Pitch) — Part #CST-512:15.2
$5.00
Sale price
$5.00
Regular price
$34.99
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Supersprox Powerdrive Steel Front Countershaft Sprocket (15-Tooth / 520 Pitch) — Part #CST-512:15.2
$5.00
Sale price
$5.00
Regular price
$34.99
Product Overview
The Supersprox Steel Front Countershaft Sprocket (Part #CST-512:15.2 / SKU CST-512-15-2) is a premium, competition-spec drivetrain component manufactured by Supersprox, a world leader in high-performance motorcycle gears supplying official factory racing operations. This 15-tooth front engine sprocket efficiently transfers raw mechanical power directly from the transmission countershaft to the rear wheel configuration via an industry-standard 520-pitch drive chain. Built using advanced metallurgy that outlasts standard C-45 materials, this sprocket serves as a highly precise direct OEM fitment substitute or performance gear modification to optimize highway cruising RPMs and power dynamics. [1, 2, 3, 4]
Technical Specifications
- Manufacturer: Supersprox
- Part Number: CST-512:15.2 (Also styled as CST-512-15-2 / MPN 104-51215)
- Product Type: Drive Train / Front Countershaft Engine Sprocket
- Material: SCM-435 Ni-Chrome Molybdenum carbon-free steel with a gas-impregnated carburized core.
- Finish: Induction case-hardened raw steel coating with an ultra-hard 0.5mm anti-friction layer.
- Size Profile: 15-Tooth (15T) tooth geometry mapped precisely for a 520 final drive chain pitch.
- Fitment Type: Direct OEM replacement matching factory spline tolerances. [1, 2, 3, 4, 5, 6, 7]
Key Features & Benefits
- SCM-435 Carbon-Free Steel: Forged from structural chromoly steel with a low-carbon core structure that prevents the teeth from fracturing or snapping under brutal torque stress. [1, 2]
- Self-Cleaning Mud Grooves: CNC-machined relief trenches at the base of every tooth actively shed packed mud, grit, and sand, preventing high-tension chain spikes and maximizing overall chain lifecycle efficiency. [1, 2]
- Fully Lightened Radial Design: Features computer-aided design (CAD) radial recess pockets that lower rotating mass to deliver ultra-crisp throttle response without sacrificing gear rigidity. [1, 2, 3]
- Reduced Chain Drag: The specialized 0.5mm case-hardened surface layout significantly drops surface friction, maximizing engine horse-power distribution and extending sprocket life by up to 10%. [1, 2, 3]
Confirmed Motorcycle Fitment
This specific spline and offset configuration configured for a 520 chain pitch is a confirmed direct fit for the following classic and mid-displacement Japanese street and adventure platforms: [1, 2]
| Manufacturer | Model | Compatible Model Years | Gearing Context |
|---|---|---|---|
| Kawasaki | EX500 Ninja 500 / 500R | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
|
520 Pitch / 15-Tooth |
| Kawasaki | KLE 500 | 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | 520 Pitch / 15-Tooth |
| Kawasaki | Zephyr 550 (ZR550B) | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 | 520 Pitch / 15-Tooth |
| Suzuki | GS 500 / GS 500E / GS 500F | 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 | 520 Pitch / 15-Tooth |