Rear Spring YZF-R1

【HYPERPRO Hyperpro 22031201 Rear Spring YZF-R1 Suspension】
■Rear Spring
Suspension spring with a constant rising rate, uniquely designed by Hyperpro.
The spring rate constantly changes in response to the movement of the suspension.
It maintains a state that is neither too soft nor too hard, while also providing the strength to withstand high-load cornering and sudden braking.
●Front springs come with the necessary amount of fork oil.
●Optimizes changes in caster during braking before a corner, making it easier to transition to the next action. Absorbs small bumps during cornering, eliminating vibrations that interfere with the rider.
●Unlike regular 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 surface scratches that can lead to performance degradation. Furthermore, after completion, each spring undergoes performance inspection by a tester.
●In the Netherlands, Hyperpro's home base, all emergency motorcycles are equipped with Hyperpro springs.
Compatible models
YAMAHA YZF-R1 '98～'01
Specifications
Spring part number: 549
Preload adjustment: POS 5-6
Sag value: 12mm
Compression adjustment: 10-14 clicks out
Rebound adjustment: 5-8 clicks out
*Images are for illustration purposes only. Product designs and specifications may change without prior notice. Thank you for your understanding.