Progressive 444 Series Motorcycle Heavy Duty Black 13" Rear Shocks (444-4221B)

• Feature the all-new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
• Deflective disc valving
• Adjust spring preload by hand, no special tool needed
• Include a progressive rate spring and is high-pressure gas charged for consistent performance
• Sold in pairs
• Made in the U.S.A.

NOTE: A shock which is slightly longer than stock may alter the head angle slightly and provide somewhat quicker steering.

NOTE: A shock which is slightly shorter than stock may slightly alter the head angle and provide somewhat slower steering.

NOTE: Heavy duty applications are recommended for bikes operating at or near the manufacturer's maximum load rating over 50% of the time.

NOTE: Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.