General information for treadmills
Visible seam on the running belt
A visible seam on the running belt is not a defect, but a normal feature resulting from the manufacturing process of high-quality treadmills. It is created during the manufacturing process of the running belt and is part of its design.
As the treadmill is used, the running belt adjusts – as a result, the seam generally becomes less noticeable. The seam has no effect on function, performance or safety. The treadmill can be used safely without restriction.
Example images
FAQ: Visible seam on the running belt
There is a visible seam on the running belt – is this a defect?
No. The visible seam is not a defect, but a normal feature resulting from the manufacturing process of high-quality treadmills.
Why is there a seam at all?
The seam is created during the manufacturing process of the running belt and is part of its design.
Will the seam become less visible over time?
Yes. In many cases, the seam becomes less noticeable with use as the running belt adjusts during operation.
Does the seam affect the treadmill’s function or safety?
No. The seam has no effect on function, performance or safety. The treadmill can be used without restriction.
Can I receive a discount or compensation because of the seam?
No. Since this is not a defect and neither performance nor safety is affected, no discount or compensation is offered.
Do I need to do or take anything into account?
No action is required. Normal use is sufficient.
Electrostatic charge on treadmills
The slight “electric shock” you may feel when using a treadmill is caused by electrostatic charge, not by a defect in the machine. This phenomenon is common with treadmills, especially in dry conditions.
Causes of electrostatic charge
Static electricity builds up through friction between your body, clothing, shoes and the treadmill. Dry air in winter or when the heating is on, synthetic shoe soles and fabrics such as polyester can increase this significantly.
Running creates constant friction, which increases the charge – when you touch the handles, it is discharged and you can feel it.
Solutions & tips
Use the safety clip
Always use the safety clip to avoid maintaining contact with the handles. This reduces the discharge when you grip them.
Additional measures to prevent static charge
Wear cotton clothing and shoes with flat soles. Increase the humidity with a humidifier or wipe the belt with fabric softener.
A floor protection mat reduces vibration and dust, which helps reduce static charge.
Which oil should I use for the treadmill?
Suitable: 100% pure silicone oil. Viscosity: 300–1000 cSt (standard: 1000 cSt).
Not suitable: Oils containing additives or solvents, such as WD-40, motor oil or sewing machine oil, as well as silicone sprays containing propellants or solvents.
The instructions in the device’s user manual always take precedence.