Streetbox Preload Adjuster:Hook Wrench Harley-Davidson Pan America RA1 –

Harley-Davidson Pan America RA1 – Suspension Optimization

The upper mount integrates the high- and low-speed compression adjusters for precise damping control

Our stereo 540 TS shock package smooths sharp hits and improves composure without changing the bike’s character

but omits the compression reservoir and the option for high- and low-speed compression adjustment

firmer spring rate compared to the standard setup

Streetbox Preload Adjuster:Hook Wrench Harley-Davidson Pan America RA1 –The Hyperpro Streetbox includes a progressive front fork spring kit and an adjustable emulsion shock. This comprehensive solution improves cornering, braking, and overall bike balance, making it ideal for street use.