Q: Is there a warranty for CCD inner tube kits?


The lifespan of inner tubes depends hugely on assembly techniques and usage conditions. Consumable parts such as oil seals and dust seals are not covered by warranty, unless they are defective upon purchase. If a new product has any installation or component issues, customers can communicate with the installation store, and our company will arrange for professionals to assist.

Q: How often should CCD inner tube kits be serviced?


We generally recommend servicing every 8,000-10,000 kilometers. This includes replacing consumable parts such as fork oil, oil seals, dust seals, and springs. Depending on riding conditions and operation methods, you might need to replace the fork oil earlier to ensure smooth operation and damping. When the fork oil is replaced, we also recommend replacing the oil and dust seals.

Q: Do CCD inner tubes fade?


CCD inner tubes are coated with PVD (Physical Vapor Deposition).
Fading can be caused by shock absorber operation friction, environmental dust, dirt, air salinity, and contact with chemicals. High mileage without changing the fork oil can also accelerate wear. Surface fading does not affect sealing but oil seal installation damage can cause the seal spring to contact the inner tube directly, leading to PVD fading or even chromium plating damage.

Q: Are CCD inner tubes prone to oil seal bursts?

  1. Shock absorbers can leak for various reasons. If leakage occurs soon after installation, it's often due to incorrect tool use or improper oil seal orientation during installation. Therefore, it's important to use the correct tools and follow the correct installation order to ensure smooth operation: oil seal > inner tube > snap ring > dust seal.

Oil seals and dust seals are made of rubber. Even with low mileage, rubber can harden over time, making these parts consumable. As with tires, we recommend replacing these parts regardless of mileage or age, and we don't recommend reusing them.

Q: If the front fork feels soft, does the spring need to be replaced?


Front fork softness can be determined by the SAG value. Support changes are mainly due to two reasons: the spring and the fork oil. If the fork oil is impure or degraded, it can cause damping decline or failure. Springs need to be replaced if they decline and support worsens. Simple comparison of the new and old spring lengths can indicate spring decline. CCD inner tube kit springs are made of imported silicon-chromium alloy steel, which is high temperature and fatigue resistant.

Q: How much oil should be added to the inner tube kits?


CCD inner tubes have a recommended oil volume for different models. Riders can request professional stores to adjust the oil volume according to their needs. However, too much oil can cause stiffness and too little can cause damping failure.

Q: How to choose between sport or competition versions?


CCD spring sports or competition versions are finely divided based on the original factory springs. If you're a general urban rider with standard brakes and low weight or load, and require better support than the original factory, we recommend the sports version. If braking leads to greater front fork sinking force, we recommend the competition version. Communicate your needs with a professional store before choosing.

Q: Can a buffer pad be used to measure travel?


The main function of a buffer pad is to prevent damage when the shock absorber bottoms out. When encountering large potholes or aggressive driving, it prevents the shock body from hitting the spring perch and causing damage. It is not meant to measure travel, as the buffer pad is located at the bottom and tends to slide down, making it difficult to determine the normal position. The rubber components may have tolerances, but this does not affect its ability to protect against impact.

Q:  Can a different brand's fork be fitted with CCD internal tubes?


Please consider the following points and discuss with a professional technician before installation:

1. The oil seal specifications may be different (33/45 or 33/46).

2. The bottom damping rod seat size may be different, and adjustments may be required to ensure proper operation of the internal tubes.

3. The length settings may differ from the original manufacturer's specifications.

Q: How can the preload adjustment of a rear shock absorber be done?


To adjust the preload, loosen the lock screw with an Allen wrench. Forcing the preload ring to turn without loosening the lock screw can cause damage to the parts.

- Turning the preload ring clockwise increases the preload, reducing sag.

- Turning the preload ring counterclockwise decreases the preload, increasing sag.

It is recommended to have a sag of approximately 1.5-2 centimeters, which is about one-fourth of the total travel. Once adjusted, lock the lock screw, and the preload ring should not rotate easily. Over-tightening can cause damage to the parts. For dual-suspension bikes, adjust both sides equally.

Q:  How can the damping be adjusted?


After adjusting the preload, you can start by setting the damping to the middle position and then make adjustments based on your personal riding preference and feel. The adjustment process is the same for both rebound and compression damping.

Rebound Damping:

Increase: Slows down the rebound speed.

Decrease: Speeds up the rebound speed.

Compression Damping:

Increase: Slows down the compression speed.

Decrease: Speeds up the compression speed.

Q: Can CCD inner tube be adjusted without being taken off ?


Preloaded adjustment means spring compression, a black adjuster locked in the red cap. Take off the front fork to keep the consistency of right & left side by using the correct tool (hex head cap screw). Recommended sinkage setting is 1.5-2 cm. We suggest customers take the inner tube off for adjustment to avoid inconsistency of left & right side.