YSS MX VINTAGE TWIN SHOCK HUS 79-80 1151384

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Product Details – YSS Rear Shock Absorber Set Eco Line for Husqvarna OR390 (1979–1980)

<p>
This <strong>pair of adjustable YSS rear shock absorbers</strong> from the <strong>Eco Line series</strong> is specifically designed for the
<strong>Husqvarna OR390 (1979–1980)</strong> with a wheelbase of <strong>420 mm</strong>.
Each unit features a <strong>gas pressure shock absorber</strong> with an external <strong>piggyback upper reservoir</strong>,
a <strong>black inner tube</strong>, and a <strong>black spring and reservoir</strong> – ensuring both performance and a classic look.
</p>

<h3>Performance & Features</h3>
<p>
The <strong>YSS Eco Line</strong> combines affordability with reliable gas shock performance.
Equipped with an adjustable <strong>threaded spring preload</strong>, it allows precise adaptation to the rider’s needs and weight.
This model ensures <strong>maximum comfort, stability, and grip</strong> on any terrain while improving control and ride balance.
</p>

<h3>Adjustment Options</h3>
<ul>
<li><strong>Spring preload:</strong> Adjustable via threaded collar for fine-tuned suspension setup</li>
<li><strong>Gas damping system:</strong> Provides consistent performance and heat resistance</li>
<li><strong>External piggyback reservoir:</strong> Enhances cooling and maintains damping stability during extended use</li>
</ul>

<h3>Technical Specifications</h3>
<ul>
<li><strong>Model:</strong> YSS Eco Line</li>
<li><strong>Type:</strong> Gas shock absorber with external piggyback upper reservoir</li>
<li><strong>Top mounting:</strong> Eye Ø 12x22 mm</li>
<li><strong>Bottom mounting:</strong> Eye Ø 8x24 mm (spacing 11+13 mm)</li>
<li><strong>Spring:</strong> 46-20-40-300</li>
<li><strong>Spring preload:</strong> Threaded adjustment</li>
<li><strong>Piston diameter:</strong> 36 mm</li>
<li><strong>Rod diameter:</strong> 12 mm</li>
<li><strong>Wheelbase length:</strong> 420 mm</li>
<li><strong>Color scheme:</strong> Black spring, black inner tube, black reservoir</li>
</ul>

<p>
The YSS Eco Line is the perfect choice for riders seeking a <strong>durable, stylish, and customizable suspension solution</strong>
for their vintage Husqvarna – offering modern damping performance with authentic looks.
</p>