Wheelchair High Pressure Tires Guide

Wheelchair High Pressure Tires Guide

High pressing factor tires additionally alluded to as "primos", "cherries on top", and "court tires". are smaller than the regular pneumatic tire. The track design is negligible and not as profound as an ordinary pneumatic. While the Shrader type air valve is the most normally utilized valve in the United States, some of the high pressing factor tires utilize the Presta valve which began in Europe. A converter is required so they can be filled from an ordinary siphon with a Shrader type fitting. High pressing factor tires require more prominent swelling, 90 - 110+psi rather than 65psi for the regular tire. A large number of the makers foresee these tires being utilized with expanded wheel camber and have planned the track to be askew in order to keep in touch.

Advantages of High Pressure Tires

• This type of tire is narrower than an everyday tire which decreases contact area with the floor (smaller footprint). The treads are fewer and shallower which decreases rolling resistance. This results in the chair becoming easier to push and rolling further per push.
• High pressure tires are commonly lighter than the standard pneumatics.
• Many users prefer to trade off the softer ride of a conventional pneumatic for the improved push-ability of the high pressure ones.
• Favored by athletes for performance reasons.

Disadvantages of High Pressure Tires

• The small volume of air at higher pressure does not afford as much shock absorption, thus it makes for a harder ride than a conventional pneumatic tire.
• The smaller "footprint" of the tire may also result in diminished traction on wet or slippery surfaces.
• Smaller shallower treads tend to wear out quicker than a conventional pneumatic when used for street use.
• May require a valve converter for inflation.