Front Springs XB12R XB12S XB9R XB9S

【HYPERPRO Hyperpro 22092100 Front Spring for XB12R XB12S XB9R XB9S Suspension Fork Spring】
■Front Spring
A suspension spring with a constant rising rate, uniquely designed by Hyperpro.
The spring rate constantly changes in accordance with 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 caster changes during braking before a corner, facilitating the transition to the next action. It absorbs small bumps during cornering, eliminating vibrations that hinder the rider.
●Unlike regular springs, it does not have a fixed spring rate, so it does not resonate.
●Springs wound by computer-controlled machine tools are shot-peened to remove microscopic surface scratches that can lead to performance degradation. Furthermore, after completion, each spring undergoes a performance inspection using a tester.
●In the Netherlands, Hyperpro's home country, Hyperpro springs are installed on all emergency motorcycles.
Compatible models
BUELL XB12R '05
BUELL XB12S '05
BUELL XB9R '05
BUELL XB9S '05
Specifications
Fork φ43
Spring part number: 1079
Fork oil grade/oil level: SAE10/140mm
Preload adjustment: 4-5th stage
Sag value: 23mm
Compression adjustment: 2 turns (+/- 0.5)
Rebound adjustment: 1 turn back (+/- 0.5)
*The image is for illustration purposes only, and the design and specifications of the products shown may change without notice. Please understand.