Dial in how your scooter puts power to the ground with the SSP-G adjustable rear drive sheave for GY6 125/150 engines. Selectable guide tracks let you tailor the rear pulley's shifting behavior to your riding style, from a sharper launch to more consistent cruising RPM. It's a useful tuning upgrade when matching your CVT to a big-bore cylinder, performance exhaust or other engine modifications.
Features
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Selectable shift profiles: Change the guide-track selection to adjust how the rear pulley responds as the CVT shifts.
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Launch-focused tuning: The straight/linear track option favors faster immediate take-off and acceleration-oriented setups, including drag-racing builds.
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Cruising-focused tuning: The curved track option favors consistent cruising RPM and top-end-oriented shifting.
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Match your engine upgrades: Tune rear-pulley behavior alongside roller weights and clutch/contra-spring selection to suit your engine's power delivery.
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Sheave-only upgrade: Replaces the sliding rear drive sheave within a compatible pulley assembly, rather than supplying a complete rear pulley.
Specifications
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Brand: SSP-G
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Part number: 169-28
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Part type: Adjustable sliding rear drive sheave / torque driver
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Overall outer diameter: 142mm
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Inner diameter: 34mm
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Engine application: Compatible GY6 125cc and 150cc four-stroke engines
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Engine codes: 152QMI / 157QMJ
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Scope: Sheave only, not a complete rear pulley, clutch or clutch-bell assembly
Model Fitment
| Engine platform |
Displacement |
Fitment requirements |
| GY6 152QMI |
125cc four-stroke |
Compatible rear pulley with matching 142mm sheave diameter, 34mm inner diameter and guide-pin/track arrangement |
| GY6 157QMJ |
150cc four-stroke |
Compatible rear pulley with matching 142mm sheave diameter, 34mm inner diameter and guide-pin/track arrangement |
Check the stamped engine code and compare the original sheave's dimensions, hub engagement and guide-pin arrangement before ordering. Engine code alone does not establish fitment. Reuse compatible mating pulley components or source them separately as required.
Track selection changes shift behavior, not the engine's power output. Results depend on the complete CVT setup and engine combination; no specific RPM or top-speed gain is guaranteed.
This product is intended for off-road use only. This product is not intended for use on public roads or land.
