Supersprox Powerdrive Steel Front Countershaft Sprocket (16-Tooth / 525 Pitch) — Part #CST-1591:16.2
$5.00
Sale price
$5.00
Regular price
$44.99
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Supersprox Powerdrive Steel Front Countershaft Sprocket (16-Tooth / 525 Pitch) — Part #CST-1591:16.2
Supersprox Powerdrive Steel Front Countershaft Sprocket (16-Tooth / 525 Pitch) — Part #CST-1591:16.2
$5.00
Sale price
$5.00
Regular price
$44.99
Product Overview
The Supersprox Steel Front Countershaft Sprocket (Part #CST-1591:16.2 / Part #CST-1591-16-2) is a premium, competition-spec drivetrain component engineered by Supersprox, a global leader in high-performance motorcycle gears supplying official factory racing operations. This 16-tooth front engine sprocket efficiently transfers raw mechanical power directly from the transmission countershaft to the rear wheel configuration via a heavy-duty 525-pitch drive chain. Built using advanced European metallurgy that far outperforms standard budget C-45 materials, this sprocket serves as a highly precise direct OEM fitment substitute or performance gear modification to lower highway cruising RPMs and optimize drivetrain efficiency. [1, 2, 3, 4]
Technical Specifications
- Manufacturer: Supersprox
- Part Number: CST-1591:16.2 (Also styled as CST-1591-16-2 or under distribution SKU 105718)
- Product Type: Drive Train / Front Countershaft Engine Sprocket
- Material: SCM-435 Ni-Chrome Molybdenum carbon-free steel with a gas-impregnated carburized core.
- Finish: Corrosion-resistant black oxide finish featuring an ultra-hard 0.5mm anti-friction layer.
- Size Profile: 16-Tooth (16T) tooth geometry mapped precisely for a 525 final drive chain pitch.
- Fitment Type: Direct OEM precision-fit bolt-on upgrade slider matching factory spline tolerances. [1, 2, 3, 4, 5, 6, 7, 8]
Key Features & Benefits
- SCM-435 Carbon-Free Steel: Forged from structural chromoly steel with an advanced, refined core structure that ensures the teeth will dynamically absorb severe landing shock loads rather than snapping when worn. [1, 2]
- Self-Cleaning Mud Grooves: CNC-machined relief trenches at the base of every tooth face actively eject packed dirt, mud, and track debris during extreme riding conditions, preventing high-tension chain spikes and maximizing overall chain lifecycle efficiency. [1, 2, 3]
- Fully Lightened Radial Design: Features computer-aided design (CAD) radial recess holes that drop rotating mass to deliver ultra-crisp throttle response without sacrificing gear structural rigidity. [1, 2, 3]
- Reduced Chain Drag: The specialized 0.5mm case-hardened surface layout significantly drops surface friction, maximizing engine horsepower distribution and preventing power loss caused by chain drag. [1, 2, 3]
Confirmed Motorcycle Fitment
This specific footprint configured for a 525 chain pitch is a confirmed direct fit for the following high-performance Yamaha street, sport, and adventure platforms: [1, 2]
| Manufacturer | Model | Gearing Context | Chain Pitch / Teeth |
|---|---|---|---|
| Yamaha | MT-09 / FZ-09 (All sub-models) | Stock Gearing Alignment | 525 Pitch / 16-Tooth |
| Yamaha | FJ-09 / Tracer 900 (All sub-models) | Highway Cruising Setup | 525 Pitch / 16-Tooth |
| Yamaha | MT-07 / FZ-07 | Alternative Gearing (Taller Final Drive) | 525 Pitch / 16-Tooth |
| Yamaha | MT-10 / FZ-10 | Stock Gearing Alignment | 525 Pitch / 16-Tooth |
| Yamaha | FZ8 / TDM900 | Premium Replacement Option | 525 Pitch / 16-Tooth
|
| Yamaha | YZF-R1 (Select Generations) | High Performance Drivetrain | 525 Pitch / 16-Tooth |