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Rear suspension is a key component in modern mountain bikes, designed to absorb impacts and improve traction on uneven terrain.
Types of Rear Suspension for Mountain Bikes
Article 20 August
Types of Rear Suspension for Mountain Bikes
Article 20 August
Depending on the design, each rear suspension system offers different features that influence performance, comfort, and pedaling efficiency. Below, we explore the main types of rear suspension available for mountain bikes.
1. Single Pivot Suspension
The single pivot system is one of the simplest and most traditional designs in mountain bikes. This type of suspension is based on a single pivot point around which the swingarm rotates. Although this design is simple and easy to maintain, it has some disadvantages, such as the tendency to generate feedback in the pedal (pedal kickback) and changes in geometry during compression of the suspension.
Advantages:
• Simplicity and low cost.
• Reduced maintenance.
Disadvantages:
• Reduced pedaling efficiency.
• Loss of traction on steep climbs.
2. Horst Link Suspension (Four Bar)
The Horst Link design is an evolution of the four-bar system. It is distinguished by having a pivot at the rear of the swingarm, ahead of the rear axle. This design improves the independence of the suspension from pedaling and braking action, offering more consistent traction and superior control on technical terrain.
Advantages:
• Better handling and traction.
• Minimizes feedback on the pedal.
Disadvantages:
• More complex design, which implies greater maintenance.
• Increased weight of the bike.
3. Virtual Pivot Point (VPP) Suspension
The VPP system uses two links that form a virtual moving pivot. This type of rear suspension is designed to optimize pedaling efficiency and downhill performance by adjusting the pivot point based on suspension compression. This results in a progressive damping curve that improves control and response on rough terrain.
Advantages:
• High pedaling efficiency.
• Excellent downhill performance.
Disadvantages:
• Complex and expensive system.
• More demanding maintenance.
4. Floating Pivot Suspension
Floating pivot suspension is a system in which the rear axle moves on an independent path, floating relative to the bike frame. This allows the suspension to work more actively, improving shock absorption and maintaining traction on rough terrain.
Advantages:
• Excellent shock absorption.
• Improves traction on rough terrain.
Disadvantages:
• Additional weight.
• Increased complexity and maintenance.
5. Split Pivot Suspension
The Split Pivot system combines aspects of the Horst Link and single pivot suspension. It features a pivot concentric to the rear axle, allowing the braking and pedaling forces to be separated from the suspension. This improves pedaling efficiency while maintaining good shock absorption.
Advantages:
• Good balance between pedaling efficiency and shock absorption.
• Improved handling during braking.
Disadvantages:
• Complex design.
• Can be more expensive and heavier.
6. Fixed Pivot Suspension
This design uses a pivot that is fixed to the frame, so it doesn't move during suspension compression. Although less common on modern bikes, this design offers a very efficient pedaling platform and is popular in disciplines such as cross-country.
Advantages:
• High pedaling efficiency.
• Simple, lightweight design.
Disadvantages:
• Less shock absorption on very technical terrain.
• Less comfortable on aggressive descents.
Conclusion
The choice of rear suspension type depends on the riding style, type of terrain and personal preference of the rider. Simpler systems such as single pivot are ideal for those looking for low maintenance and lightweight design, while more advanced systems such as VPP or Horst Link offer superior performance on technical terrain, at the cost of increased complexity and cost.
Each type of suspension has its own advantages and disadvantages, so it is crucial to carefully consider which system best suits your needs and goals in mountain biking.