Front spring 390 Duke

[HYPERPRO 22093770 Front Spring for 390 Duke Suspension Fork Spring]
■Front Spring
Suspension springs with a constant rising rate, uniquely designed by Hyperpro.
The spring rate constantly changes in response to the suspension's movement.
It maintains a state that is neither too soft nor too hard, and also has the ability to withstand high-load cornering and sudden braking.
●Optimizes the change in caster during braking before a corner, making it easier to transition to the next action. It absorbs small bumps during cornering, eliminating vibrations that interfere with the rider.
●Unlike ordinary springs, there is no constant spring rate, so there is no resonance.
●Springs wound by computer-controlled machine tools are shot-peened to remove microscopic scratches on the surface that lead to performance degradation. Furthermore, after completion, each spring undergoes a performance test by a tester.
●In the Netherlands, Hyperpro's home country, all emergency motorcycles are equipped with Hyperpro springs.
Compatible models
KTM 390 DUKE '17-'20
Specifications
Spring Part Number: 1710
Fork Oil Viscosity/Oil Level: SAE10/90mm
Preload Adjustment: Not adjustable
Sag Value: 25-30mm
Compression Adjustment: Not adjustable
Rebound Adjustment: Not adjustable
Setting Remarks: Fork Extension 10mm
*The image is for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Please note.