This puncture-proof polyurethane foam wheel has an offset hub for easy installation on an axle for a cart. The advantage of this material is that it will last at least 3 times longer than an inflated version while allowing for smooth movement. Rolling over nails is therefore no longer a problem!
The ball bearing also helps to reduce effort during movement.
Be careful if your axle is rusty; it will be necessary to sand it down to clean it.
If you want to switch from an inflated wheel to this puncture-proof wheel and want to check that the model is exactly the same, your old punctured wheel must be marked: 4.10/3.50-4 in terms of dimensions.
This puncture-proof wheel is made of polyurethane foam, which makes it softer than a hard rubber wheel. However, the small air bubbles present in the foam are sensitive to temperature variations: the wheel becomes slightly softer in summer and harder in winter. Additionally, it is important to store it without contact with the ground, even under a light load. Indeed, these bubbles tend to flatten during prolonged storage, which could deform the wheel and create a flat spot.
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