F.I.R.'s most popular range, the Beta series, features a combination of hub made in polyamide 6 and tread made from top quality TPU.
These wheels have mechanical interlocking system. This series has the best price-quality ratio. The wheels are very strong, durable and resistant to tearing.
They are ideal for applications that require a speed of up to 6 km/h or 4 mph. The elastic polyurethane, from 70 to 80 Shore A, allows excellent grip and the ability to overcome obstacles.
The wheels are noiseless and do not vibrate. They are suited to most surfaces.