Front fork springs CB400SF

[HYPERPRO 22013110 Front Spring CB400SF Suspension Fork Spring]
■Front Spring
Suspension spring 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 provides the resilience needed during high-load cornering and sudden braking.
●Optimizes the caster change during braking before a corner, facilitating the transition to the next action. It absorbs small gaps during cornering, eliminating vibrations that would interfere with the rider.
●Unlike conventional springs, it does not have a constant spring rate, so it does not resonate.
●Springs wound by computer-controlled machine tools are shot-peened to remove microscopic surface scratches that could lead to performance degradation. Furthermore, each finished spring undergoes a performance inspection with a tester.
●In the Netherlands, Hyperpro's home country, all emergency motorcycles are equipped with Hyperpro springs.
Compatible models
HONDA CB400SF '98~'03 (V-TEC1, 2)
Specifications
Spring part number: 1040
Fork oil grade/level: SAE10/160mm
Preload adjustment: Not adjustable
Sag value: 28mm
Compression adjustment: Not adjustable
Rebound adjustment: Not adjustable
Setting notes: Uses genuine preload bush (194mm/SPEC1, 200mm/SPEC2)
*Images are for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Thank you for your understanding.