Shock Absorber Type 540 Road Lift/Lowering:-20 mm spring preload can be continuously

spring preload can be continuously adjusted

The Wilbers solution corrects this by using progressive springs with a matched block value on the suspension struts

With its radial piston

the air chamber provides end-stroke progression

Shock Absorber Type 540 Road Lift/Lowering:-20 mm spring preload can be continuouslyEcoline 540 Mono Road 46 mm The premium value alternative in our lineup, offering larger bore damping control for demanding riders. Includes stepless spring preload adjustment via spanner tool, radial piston design, and progressive shim stack for consistent performance. Durable, maintenance free spherical bearings ensure longevity. Backed by a 5 year warranty and ABE. Note: Product image may vary. Download ABE