Front Springs Royal Star

【HYPERPRO Hyperpro 22031510 Front Spring Royal Star 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 provides the necessary resilience during high-load cornering and sudden braking.
●Optimizes changes in caster during braking before a corner, making it easier to transition to the next action. Absorbs small bumps during cornering and eliminates vibrations that would interfere with the rider.
●Unlike regular 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 test on a tester.
●In the Netherlands, Hyperpro's home country, all ambulance motorcycles are equipped with Hyperpro springs.
Compatible models
YAMAHA ROYAL STAR '99-'01
Specifications
Spring part number: 1087
Fork oil grade/oil level: SAE10/140mm
Preload adjustment: None
Sag value: 25mm
Compression adjustment: None
Rebound adjustment: None
Setting notes: Remove genuine 28.3mm bush
*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.