Progressive Suspension 412 Series Shock Set | Heavy Duty | Bonneville/Scrambler/Twin/Thruxton

The Progressive Suspension 412 Series Shock Set are the best shocks. It has Nitrogen charged double steel wall body with multi-staged velocity sensitive valving and five position cam style preload adjustment, it will give you smooth, consistent damping.

Features:

• Simple, durable design
• Smooth, consistent damping
• Improved handling and stability

Specifications:

• Build: Chromed steel body with machined aluminum spring covers
• Nitrogen charged double steel wall body
• Multi-staged velocity sensitive valving
• Heavy Duty
• Five position cam style preload adjustment
• Spanner wrench included
• Progressive Rate Spring

Which shock is for you?

• Standard Duty Shocks: are for light-weight individuals, where both rider and passenger are light weight. For those whose combined rider weights up to 250 lbs / 113kg. Heavy Duty shocks or springs will give them a harsh ride.
• Heavy Duty Shocks: are for body-builders type individuals or for those who carry heavy baggage, where both rider and passenger combined weight is 250 lbs / 113kg to 350 lbs / 159kg. These shocks are best for where bike is operated at manufacturers maximum load rating over 50% of the time.
• Super Heavy Duty Shocks: are for heavy-weight individuals or for those who carry heavy baggage, where both rider and passenger combined weight is 350 lbs /159kg and up.

Compatibility: Triumph: 16-21 T100 Bonneville; 16-21 T120 Bonneville; 16-21 Street Twin; 17-21 Street Scrambler

Note: Black 412 shocks may be supplied without lower cover.