Progressive 13-1240B Magnum O/R Shocks — Fits 1976-1984 Yamaha, Suzuki, Honda, Bultaco, Can-Am, Husqvarna

SKU: PGR13-1240B
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Progressive

Progressive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Progressive lineup with fast shipping and expert fitment support — order with confidence.

Progressive 13-1240B Magnum O/R Shocks

Elevate your off-road or vintage motorcycle's suspension with the Progressive 13-1240B Magnum O/R Shocks. Engineered for optimal performance and durability, these shocks are designed to provide a superior riding experience, whether you're tackling trails or cruising on a classic machine. The Magnum O/R series offers a robust construction and advanced damping technology to ensure a smooth and controlled ride.

Key Features and Benefits:

  • Enhanced Damping: Provides superior control and comfort over various terrains.
  • Durable Construction: Built to withstand the rigors of demanding use.
  • Optimized Length: With a 15-inch length, these shocks are designed for specific fitments, ensuring proper geometry and performance.
  • Versatile Fitment: Compatible with a wide range of vintage and off-road motorcycles, including Yamaha TT500, XT500, Bultaco Pursang, Can-Am MX-3, Husqvarna CR, Suzuki PE and RM models, and even the Honda CB700SC Nighthawk S.
  • Direct Replacement: Designed for a straightforward installation, replacing your stock shocks with minimal hassle.

Technical Specifications:

  • Part Number: 13-1240B
  • Series: Magnum O/R
  • Length: 15 inches
  • Application: Designed for a variety of dirt bikes and classic motorcycles from the 1970s and 1980s.

Invest in your ride's performance and longevity. The Progressive 13-1240B Magnum O/R Shocks are the perfect upgrade for riders seeking improved handling and a more comfortable journey. Experience the difference quality suspension makes. Find these and more premium parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1978-1979 Bultaco Frontera 250 Base
1978-1979 Bultaco Frontera 370 Base
1977-1979 Bultaco Pursang 250 Base
1977-1979 Bultaco Pursang 370 Base
1977 Can-Am 175 MX-3 Base
1984-1986 Honda CB700SC Nighthawk S Base
1978-1980 Husqvarna CR125 Base
1977-1978 Husqvarna CR390 Base
1977-1980 Husqvarna WR250 Base
1979-1980 Husqvarna WR390 Base
1978-1979 Maico 400 Enduro Base
1978-1979 Maico 450 Enduro Base
1978-1979 Suzuki DR370 Base
1978-1979 Suzuki PE175 Base
1977-1979 Suzuki PE250 Base
1977 Suzuki RM370 Base
1982 Suzuki SP500 Base
1976-1981 Yamaha TT500 Base
1976-1981 Yamaha XT500 Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Progressive

Progressive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Progressive lineup with fast shipping and expert fitment support — order with confidence.

Progressive 13-1240B Magnum O/R Shocks

Elevate your off-road or vintage motorcycle's suspension with the Progressive 13-1240B Magnum O/R Shocks. Engineered for optimal performance and durability, these shocks are designed to provide a superior riding experience, whether you're tackling trails or cruising on a classic machine. The Magnum O/R series offers a robust construction and advanced damping technology to ensure a smooth and controlled ride.

Key Features and Benefits:

  • Enhanced Damping: Provides superior control and comfort over various terrains.
  • Durable Construction: Built to withstand the rigors of demanding use.
  • Optimized Length: With a 15-inch length, these shocks are designed for specific fitments, ensuring proper geometry and performance.
  • Versatile Fitment: Compatible with a wide range of vintage and off-road motorcycles, including Yamaha TT500, XT500, Bultaco Pursang, Can-Am MX-3, Husqvarna CR, Suzuki PE and RM models, and even the Honda CB700SC Nighthawk S.
  • Direct Replacement: Designed for a straightforward installation, replacing your stock shocks with minimal hassle.

Technical Specifications:

  • Part Number: 13-1240B
  • Series: Magnum O/R
  • Length: 15 inches
  • Application: Designed for a variety of dirt bikes and classic motorcycles from the 1970s and 1980s.

Invest in your ride's performance and longevity. The Progressive 13-1240B Magnum O/R Shocks are the perfect upgrade for riders seeking improved handling and a more comfortable journey. Experience the difference quality suspension makes. Find these and more premium parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1978-1979 Bultaco Frontera 250 Base
1978-1979 Bultaco Frontera 370 Base
1977-1979 Bultaco Pursang 250 Base
1977-1979 Bultaco Pursang 370 Base
1977 Can-Am 175 MX-3 Base
1984-1986 Honda CB700SC Nighthawk S Base
1978-1980 Husqvarna CR125 Base
1977-1978 Husqvarna CR390 Base
1977-1980 Husqvarna WR250 Base
1979-1980 Husqvarna WR390 Base
1978-1979 Maico 400 Enduro Base
1978-1979 Maico 450 Enduro Base
1978-1979 Suzuki DR370 Base
1978-1979 Suzuki PE175 Base
1977-1979 Suzuki PE250 Base
1977 Suzuki RM370 Base
1982 Suzuki SP500 Base
1976-1981 Yamaha TT500 Base
1976-1981 Yamaha XT500 Base

Product Details

Product Description

About Progressive

Progressive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Progressive lineup with fast shipping and expert fitment support — order with confidence.

Progressive 13-1240B Magnum O/R Shocks

Elevate your off-road or vintage motorcycle's suspension with the Progressive 13-1240B Magnum O/R Shocks. Engineered for optimal performance and durability, these shocks are designed to provide a superior riding experience, whether you're tackling trails or cruising on a classic machine. The Magnum O/R series offers a robust construction and advanced damping technology to ensure a smooth and controlled ride.

Key Features and Benefits:

  • Enhanced Damping: Provides superior control and comfort over various terrains.
  • Durable Construction: Built to withstand the rigors of demanding use.
  • Optimized Length: With a 15-inch length, these shocks are designed for specific fitments, ensuring proper geometry and performance.
  • Versatile Fitment: Compatible with a wide range of vintage and off-road motorcycles, including Yamaha TT500, XT500, Bultaco Pursang, Can-Am MX-3, Husqvarna CR, Suzuki PE and RM models, and even the Honda CB700SC Nighthawk S.
  • Direct Replacement: Designed for a straightforward installation, replacing your stock shocks with minimal hassle.

Technical Specifications:

  • Part Number: 13-1240B
  • Series: Magnum O/R
  • Length: 15 inches
  • Application: Designed for a variety of dirt bikes and classic motorcycles from the 1970s and 1980s.

Invest in your ride's performance and longevity. The Progressive 13-1240B Magnum O/R Shocks are the perfect upgrade for riders seeking improved handling and a more comfortable journey. Experience the difference quality suspension makes. Find these and more premium parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1978-1979 Bultaco Frontera 250 Base
1978-1979 Bultaco Frontera 370 Base
1977-1979 Bultaco Pursang 250 Base
1977-1979 Bultaco Pursang 370 Base
1977 Can-Am 175 MX-3 Base
1984-1986 Honda CB700SC Nighthawk S Base
1978-1980 Husqvarna CR125 Base
1977-1978 Husqvarna CR390 Base
1977-1980 Husqvarna WR250 Base
1979-1980 Husqvarna WR390 Base
1978-1979 Maico 400 Enduro Base
1978-1979 Maico 450 Enduro Base
1978-1979 Suzuki DR370 Base
1978-1979 Suzuki PE175 Base
1977-1979 Suzuki PE250 Base
1977 Suzuki RM370 Base
1982 Suzuki SP500 Base
1976-1981 Yamaha TT500 Base
1976-1981 Yamaha XT500 Base

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