A true sport performance shock at heart with an unbelievable low cost, the new 490 Sport Series Shocks feature a high-pressure monotube with deflective disc damping technology, hand threaded preload and a rebound adjustment to dial in the ride.

• This technology coupled with a linear rate spring allow for consistent feel through the damper stroke and the ability to withstand extreme temperature ranges and heavy loads.
• An engineered jounce bumper with a built-in metal cup also help smooth out and control bottoming.
• From pounding pavement around town to hammering around the tarmac on your next race day, the 490 is the perfect choice for your performance demand!
• High Pressure Gas Monotube
• Deflective Disc Damping
• Lightweight Aluminum Body
• Adjustable rebound Damping
• Adjust Preload by Hand
• Linear Rate Coil Spring
• Jounce Bumper with Built-in Cap
• Standard and Bearing Bushings
• Lifetime Limited Warranty by Progressive Suspension 
• Progressive Suspension OEM # 490-1002