301mm eye to eye. Chrome springs; chrome body; anthracite piggyback & shock ends. Manual preload. Piggyback shock absorber. With adjustable spring preload; adjustable compression damping & adjustable rebound damping. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Separate aluminum compensation chamber (piggy back)- Gas pressurized (Nitrogen) - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Compression damping (12 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

281mm eye to eye length. Manual adjustable preload & rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

291mm eye to eye length. Manual adjustable preload. No adjustable rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

280mm eye to eye length. Black springs; body; piggyback & shock ends. Manual adjustable preload. Piggyback shock absorber. With adjustable spring preload; adjustable compression damping & adjustable rebound damping. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Separate aluminum compensation chamber (piggy back)- Gas pressurized (Nitrogen) - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Compression damping (12 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

280mm eye to eye length. Chrome springs; chrome body; anthracite piggyback & shock ends. Manual adjustable preload. Piggyback shock absorber. With adjustable spring preload; adjustable compression damping & adjustable rebound damping. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Separate aluminum compensation chamber (piggy back)- Gas pressurized (Nitrogen) - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Compression damping (12 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

306mm eye to eye length. Chrome springs; chrome body; anthracite piggyback & shock ends. Manual adjustable preload. Piggyback shock absorber. With adjustable spring preload; adjustable compression damping & adjustable rebound damping. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Separate aluminum compensation chamber (piggy back)- Gas pressurized (Nitrogen) - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Compression damping (12 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

331mm eye to eye length. Manual adjustable preload & rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

341mm eye to eye length. Manual adjustable preload. No adjustable rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

341mm eye to eye length. Manual adjustable preload & rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Rebound damping (5 or 7 clicks) - Fully serviceable - Includes 2 shock absorbers; assembly instructions; manual and spring preload adjustment tool.

444 series shocks: Comes with FST (Frequency Sensing Technology) which dynamically adjusts damping; according to road surface. Top mount threaded hand adjustable preload. 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. Super Heavy Duty shocks are for +350 lbs. loads.

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. Note: Remote reservoir strut mounts. For a different; wild & aggressive look see 941797 Progressive Suspension''s (alternative style) remote rear reservoir fender strut cover mount brackets. Comp