Front Springs SR400

【HYPERPRO Hyperpro 22033070 Front Spring SR400 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 movement of the suspension.
Maintaining a state that is neither too soft nor too hard, it also provides the necessary strength for 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 bumps during cornering, eliminating vibrations that interfere with the rider.
●Unlike conventional springs, there is no constant spring rate, so resonance does not occur.
●Springs wound by computer-controlled machine tools are shot-peened to remove microscopic scratches on the surface that can lead to performance degradation. Furthermore, after completion, each spring undergoes performance testing by a tester.
●In the Netherlands, Hyperpro's home country, all emergency motorcycles are equipped with Hyperpro springs.
Compatible models
YAMAHA SR400 '78-'84 (Disc Brake)
YAMAHA SR400 '01-'21 (Disc Brake)
Specifications
Spring component number: 1045
Fork oil grade/oil level: SAE20/150mm
Preload adjustment: None
Sag value: 30mm
Compression adjustment: None
Rebound adjustment: None
Setting notes: For 83-84 models, remove the genuine spacer before assembly.
*Images are for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Please understand.