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How to adjust motorcycle rear suspension
2025-07-11 14:40:43

How to adjust motorcycle rear suspension

The adjustment of motorcycle rear suspension is essential to improve riding comfort and handling. Correct adjustment can not only improve the dynamic performance of the vehicle, but also extend the service life of the suspension system. This article will introduce in detail how to adjust the motorcycle rear suspension, and combine the high-quality rear suspension products of Hightac Motorcycle Accessories Company to help motorcycle owners and maintenance personnel master this key skill.

1. The importance of motorcycle rear suspension adjustment

The main function of motorcycle rear suspension is to absorb road bumps and maintain vehicle stability and comfort. If the rear suspension is not adjusted properly, it may cause problems such as bouncing, bottoming out or unstable handling during driving. Therefore, regular inspection and adjustment of the rear suspension is an important part of motorcycle maintenance.

2. Steps to adjust the rear suspension of a motorcycle

(I) Preparation
Tool preparation: Prepare the necessary tools, such as wrenches, screwdrivers, torque wrenches, rulers and special preload adjustment tools.

Vehicle inspection: Make sure the motorcycle is in normal working condition, check whether the rear shock absorber has oil leakage, and ensure that the tire pressure meets the standard.
(ii) Measuring the amount of settlement
The amount of settlement refers to the difference between the height of the vehicle when it is unloaded and the height after the rider sits on it. It is a key reference data for adjusting the rear suspension. The following steps are required to measure the amount of settlement:
Measure the static settlement (L1): Use the center support frame to prop up the motorcycle so that the rear wheel is suspended in the air, and measure the length from the rear wheel axle to the rear swingarm.
Measure the dynamic settlement (L2): Let the rider sit on the motorcycle with both feet off the ground and measure the same position.
Calculate the settlement value: Settlement value = L1 - L2. The generally recommended settlement value for the rear suspension is 30-40 mm.
(iii) Adjusting the preload
Preload adjustment is achieved by changing the precompression of the shock absorber spring, which is usually located at the top or bottom of the shock absorber spring.
Loosen the anti-skid screw: If the shock absorber has an anti-skid screw, it needs to be loosened first.
Adjust the preload ring: Use a special tool (such as a hook wrench) to rotate the preload ring to increase or decrease the precompression of the spring.
Remeasure the amount of settlement: After adjustment, remeasure the amount of settlement to ensure that it is within the recommended range.
(IV) Adjust damping
Damping adjustment is divided into compression damping and rebound damping, which are used to control the resistance of the shock absorber when it is compressed and extended.
Compression damping adjustment: There is usually an adjustment knob at the bottom or side of the shock absorber. Turning clockwise increases damping and counterclockwise decreases damping.
Rebound damping adjustment: The adjustment of rebound damping is usually located at the top of the shock absorber, and the adjustment method is similar to compression damping.
(V) Testing and fine-tuning
Test ride test: After completing the adjustment, take a test ride to feel the vehicle's handling and comfort. If the shock absorption effect is not good, further fine-tuning can be done.
Check the adjustment results: During the test ride, pay attention to the performance of the vehicle under different road conditions to ensure that the adjusted suspension can meet personal needs.

III. Hightac Motorcycle Accessories Company: High-quality rear suspension products

Hightac Motorcycle Accessories Company focuses on producing high-quality motorcycle parts, and its rear suspension products are known for their reliability and durability in the market. Hightac's rear suspension products use advanced manufacturing technology and high-quality materials, and can perfectly adapt to a variety of motorcycle models.
Hightac rear suspension product features
High adaptability: Hightac's rear suspension products are manufactured strictly in accordance with the design standards of motorcycle manufacturers and can perfectly adapt to motorcycles of brands such as Yamaha, Honda, Suzuki, etc.
Reliable quality: Hightac uses high-quality materials and strict quality inspection processes to ensure the durability and stability of each rear suspension.
Diverse choices: Hightac offers a variety of rear suspension products to meet the needs of different motorcycles.

4. Common problems and solutions

(i) Shock absorber oil leakage
If the shock absorber leaks oil, it may be caused by wear of the internal oil seal. It is recommended to replace the shock absorber in time and choose products from well-known brands, such as Hightac.
(ii) Shock absorber is too hard or too soft
If the shock absorber feels too hard or too soft, it can be improved by adjusting the preload or damping. If the adjustment still cannot meet the needs, the spring or shock absorber may need to be replaced.

V. Summary

Adjusting the motorcycle rear suspension is an important part of motorcycle maintenance. Through correct adjustment, you can improve riding comfort and handling and extend the service life of the suspension system. The high-quality rear suspension products provided by Hightac Motorcycle Parts are a reliable choice for owners and maintenance personnel.
If you encounter any problems during the adjustment process, it is recommended to refer to the motorcycle maintenance manual or consult a professional motorcycle maintenance technician. I hope that the introduction in this article can help you better master the adjustment method of the motorcycle rear suspension and ensure the safety and performance of the motorcycle.

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