Chrome Promoto Fork Tube YSS the spring rate has been

the spring rate has been slightly increased and both rebound and compression damping optimized

Harley-Davidson Pan America RA1 – Suspension Optimization

Progressive springs are great all-rounders for touring and off-road

20mm diameter pistons with expanded oil passages

We achieve a more responsive fork by moving from linear to progressive springs

Chrome Promoto Fork Tube YSS the spring rate has beenPromoto replacement fork tubes OEM fit, better value. Replacing damaged fork tubes especially USD types can get expensive. Promoto tubes match OEM dimensions precisely and can save up to 50% versus original parts. Many models offer a choice of chrome, titanium, or carbon coatings. Product may vary from picture.