412 series shocks: Best value Progressive Suspension shock; great as stock replacement. Nitrogen charged double steel wall body. Multi-staged velocity sensitive valving. Five position cam style preload adjustment. Note: Without lower cover. What are Progressive Suspension''s ''Heavy Duty'' shocks? If you are a lightweight rider with a lightweight passenger; STD Duty is probably your best choice; heavy duty shocks will give you a harsh ride. For Big Guys & Gals with a lot of baggage; Heavy Duty springs are the way to go. Heavy Duty is not better; it''s different.Heavy Duty shocks or springs are recommended to be used on motorcycles that are operated at or near the manufacturers maximum load rating over 50% of the time.

412 series shocks: Best value Progressive Suspension shock; great as stock replacement. Nitrogen charged double steel wall body. Multi-staged velocity sensitive valving. Five position cam style preload adjustment. Note: Black 412 shocks may be supplied without lower cover.What are Progressive Suspension''s ''Heavy Duty'' shocks? If you are a lightweight rider with a lightweight passenger; STD Duty is probably your best choice; heavy duty shocks will give you a harsh ride. For Big Guys & Gals with a lot of baggage; Heavy Duty springs are the way to go. Heavy Duty is not better; it''s different.Heavy Duty shocks or springs are recommended to be used on motorcycles that are operated at or near the manufacturers maximum load rating over 50% of the time.

490 series - Sport Series. A true sport performance shock; with a competitive price tag. Features a high pressure nitrogen monotube with deflective disc technology and a linear rate spring for the most consistent feel throughout the damper stroke on both street and track. Preload and rebound adjustability by hand. An engineered jounce bumper with a built-in metal cup smooths and controls bottoming out. What are Progressive Suspension''s ''STD Duty'' vs ''Heavy Duty'' shocks? If you are a lightweight rider with a lightweight passenger; STD Duty is probably your best choice; heavy duty shocks will give you a harsh ride. For Big Guys & Gals with a lot of baggage; Heavy Duty springs are the way to go. Heavy Duty is not better; it''s different.Heavy Duty shocks or springs are recommended to be used on motorcycles that are operated at or near the manufacturers maximum load rating over 50% of the time.

With bearing. 990 Sport series - Best. Based on the 970 series but designed towards aggressive sport/race inspired riding. No other shock offers this much tuning adjustability. Features include a linear rate coil spring; a 0.4" adjustable eyelet height and adjustable threaded preload; a piggyback reservoir (remote for Touring) has a knob to adjust both rebound and high & low speeds compression damping. Featured in a lightweight aluminum body the high-pressure monotube with deflective disc damping routed through two unique circuits delivers a consistent feel through the damper stroke for improved performance and stability. A new and improved engineered jounce bumper features a captured design to help smooth and control bottoming out. Each shock is hand-built & dyno tested to deliver real world performance.What are Progressive Suspension''s ''STD Duty'' vs ''Heavy Duty'' shocks? If you are a lightweight rider with a lightweight passenger; STD Duty is probably your best choice; heavy duty shocks will give you a harsh ride. For Big Guys & Gals with a lot of baggage; Heavy Duty springs are the way to go. Heavy Duty is not better; it''s different.Heavy Duty shocks or springs are recommended to be used on motorcycles that are operated at or near the manufacturers maximum load rating over 50% of the time.

990 Sport series - Best. With bearing. Based on the 970 series but designed towards aggressive sport/race inspired riding. No other shock offers this much tuning adjustability. Features include a linear rate coil spring; a 0.4" adjustable eyelet height and adjustable threaded preload; a piggyback reservoir (remote for Touring) has a knob to adjust both rebound and high & low speeds compression damping. Featured in a lightweight aluminum body the high-pressure monotube with deflective disc damping routed through two unique circuits delivers a consistent feel through the damper stroke for improved performance and stability. A new and improved engineered jounce bumper features a captured design to help smooth and control bottoming out. Each shock is hand-built & dyno tested to deliver real world performance.What are Progressive Suspension''s ''STD Duty'' vs ''Heavy Duty'' shocks? If you are a lightweight rider with a lightweight passenger; STD Duty is probably your best choice; heavy duty shocks will give you a harsh ride. For Big Guys & Gals with a lot of baggage; Heavy Duty springs are the way to go. Heavy Duty is not better; it''s different.Heavy Duty shocks or springs are recommended to be used on motorcycles that are operated at or near the manufacturers maximum load rating over 50% of the time.

Black. Shocks for FXR and Sportster models for standard to extended for that ''Tall Stance'' Street Tracker & Club Style build depending on shock length. Custom applications. With spherical bearing.