Front springs lowering by approximately 30mm for YZF-R1

【HYPERPRO 22031870 Front Spring Lowdown approx. 30mm YZF-R1 Suspension Fork Spring】
■Front Spring
Hyperpro's unique lowdown spring lowers vehicle height by changing the rate and adjusting the oil level, without significantly changing the free length of the spring.
Enjoy the smooth ride of a constant rising rate that flexibly absorbs shocks and provides firm support when pushed.
Fork oil in the necessary quantity is included with the front spring.
Compatible models
YAMAHA YZF-R1 '04-'06
Specifications
Lowdown: approx. 30mm
Spring part number: 1375
Fork oil viscosity/oil level: SAE10/100mm
Preload adjustment: 6-7th stage
Sag value: 35mm
Compression adjustment: 25+/-5 clicks out
Rebound adjustment: 17+/-4 clicks out
Setting notes: Use genuine preload bush L=100mm. Assemble with the tapered end up. Install with the fork protruding 10mm.
*When using the side stand, park on a flat surface in first gear. (The vehicle will be more upright than normal due to the lowdown)
*After installation, the vehicle balance will change significantly. Please ensure front and rear settings are made before riding.
*Lowdown parts are considered designated parts, so no structural modification procedures are required.
*For lowdowns of 30mm or more, a short side stand may be required depending on the vehicle condition. For models with adjustable preload, adjust the setting while ensuring the side stand can be used at the lowdown amount.
*Images are for illustration purposes only, and the design and specifications of the products shown may change without prior notice. Please understand.