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Rear Shock Getting Spongy? How to service the rear shock on your mountain bike

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Rear Shock Getting Spongy? How to service the rear shock on your mountain bike

Rear Shock Absorber Getting Spongy?

If you've noticed that your rear shock absorber is feeling spongy, it could be a sign that it needs to be serviced or replaced. A spongy shock absorber can lead to a bumpy and uncomfortable ride because it's not effectively absorbing the impact of bumps and potholes on the road or trail. This can also affect your bikes handling and stability, making it more difficult to control. It's important to address the issue promptly.


Let's dive into the process of servicing your rear shock to ensure peak performance and longevity.

Here's a step-by-step guide:


Remove the Shock: start by carefully removing the rear shock from the bike frame. Unscrew the bolts securing the shock to the frame and eyelets, making sure to handle it delicately to avoid any damage.


Clean the Shock: use specialized brushes, and cloths, to thoroughly clean the shock, removing dirt or debris that has accumulated. Pay close attention to hard-to-reach areas to ensure a thorough cleaning.


Disassemble the Air Can: separate the air can from the shock body by removing the air valve. This step gives you access to the internal parts of the shock for inspection and maintenance.


Inspect and Clean Seals: look the seals closely for any signs of wear, damage, or deterioration. Clean them thoroughly with a damp cloth to eliminate any contaminants and maintain optimal performance.


Lubricate the Seals: apply the amount of suspension fluid to the seals as indicated by the manufacturer. This will ensure that they have adequate lubrication to give you a smooth ride and prevent premature wear.


Reassemble the Air Can: once the seals are clean and lubricated, carefully reassemble the air can by reattaching the air valve. Make sure everything is securely in place before moving on to the next step.


Check Air Pressure: before reinstalling the shock on your bike, check the air pressure to ensure it is at the recommended level for your weight and riding style. Adjust as needed for optimal performance.


Reinstall the Shock: carefully reinstall the shock on your bike, making sure it is securely attached and aligned properly.


Test the Suspension: by compressing and releasing the shock absorber multiple times, you can ensure everything is working smoothly before hitting the trails.


Regular maintenance of your shock absorber prolongs its lifespan and improves your overall riding experience!



What's the difference between Enclosed & Exposed Coil Shocks?

Enclosed Rear Shock:

Construction: also known as air shocks or air-sprung shocks, use a sealed chamber filled with compressed air as the primary spring mechanism. They feature a piston and damping system inside the shock body to control compression and rebound.

Operation: these shocks rely on air pressure adjustments to modify the spring rate and overall stiffness of the shock. You can fine-tune your shock's performance by adjusting the air pressure to suit your riding style, terrain, and preferences.

Advantages: enclosed rear shocks are often lighter in weight compared to coil shocks. They also offer a wider range of adjustability, making them popular among riders who prioritize customization and tuning.


Exposed Coil Rear Shock:

Construction: also known as coil shocks or coil-sprung shocks, feature a metal coil spring visible on the outside of the shock body. The coil spring serves as the primary spring mechanism, while the shock also includes a piston and damping system for control.

Operation: these shocks provide a consistent and linear spring rate throughout the ride, with predictable and reliable performance on various types of terrain. Adjustability is often limited compared to air shocks, although some models may feature preload adjustments.

Advantages: Exposed coil shocks are known for their plush and supple feel, particularly over small bumps and rough terrain. They are generally regarded for their durability and ability to withstand heavy impacts without affecting performance.


So the main difference between the two lies in their spring mechanism (air vs. coil) and adjustability. Enclosed shocks offer greater adjustability and lighter weight, while exposed coil shocks provide a consistent, plush ride feel and can really take a beating. Choose what's best for you based on your riding style, preferences, and terrain conditions.

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