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Torque spring Naraku +2000 rpm for GY6, Kymco, Honda - NK900.76
  • SKU: NK900.76
  • Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

Torque spring Naraku +2000 rpm for GY6, Kymco, Honda

$20.24
Shipping calculated at checkout.
  • Vendor:Naraku
  • Barcode: 4250362417923
DESCRIPTION
The Naraku +2000 rpm torque spring is an aftermarket CVT transmission component specifically calibrated for GY6 engine scooters, as well as certain Kymco and Honda platforms using a continuously variable transmission (CVT) system with an interchangeable torque spring.

In a CVT transmission, the torque spring acts on the rear pulley (Torque Drive) to determine the engine speed at which this pulley significantly changes position. This reaction influences how the engine → final drive → wheel ratio is matched under load.

A spring calibrated for +2000 rpm is designed to delay the rear pulley's response up to high engine speeds (~2000 rpm above the balance point), which means:

the rear pulley remains in an "open" position longer

the belt is held lower in the front pulley/engine profile at low/mid-range RPMs

torque is utilized in a higher RPM range before the gear progression changes

the CVT assembly becomes better suited to high-performance/high-RPM configurations

This setting is particularly relevant for modified or optimized engines: cylinder kits, sport intake, free-flowing exhaust, or recalibrated ignition, where available power is found higher in the RPM range.