Front Spring FXR

【HYPERPRO Hyperpro 22092130 Front Spring FXR Suspension Fork Spring】
■Front Spring
Suspension springs with a constant rising rate, uniquely designed by Hyperpro.
The spring rate constantly changes in response to suspension movement.
It maintains a state that is neither too soft nor too hard, and also has the strength to withstand high-load cornering and sudden braking.
●Optimizes caster changes during braking before corners, making it easier to transition to the next action. It absorbs small gaps during cornering and eliminates vibrations that interfere with the rider.
●Unlike ordinary 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 minute surface scratches 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
HARLEY DAVIDSON FXR FXR SUPER GLIDE '87～'94
Specifications
Spring part number: 0372
Fork oil viscosity/level: SAE40/160mm
Preload adjustment: No adjustment
Sag value: +/- 30mm
Compression adjustment: No adjustment
Rebound adjustment: No adjustment
Setting remarks: SHOWA Fork/39mm L=790mm
*The image is for illustrative purposes only, and the design and specifications of the products shown are subject to change without notice. Please understand.