As the point of contact between a vehicle and the road, tires are one of the most important parts of a car. Unfortunately, there's no one size fits all, or rather, one tire fits all surfaces or weather conditions, tire and swapping them over when encountering changing conditions isn't exactly feasible. Kumho has come up with a concept tire that would avoid this problem by changing its tread to suit the conditions.
Airless tires are one step closer to becoming a production reality, after Hankook successfully put its iFlex tire through a series of high speed tests. The iFlex is Hankook's fifth attempt at non-pneumatic tires, and brings with it a number of environmental benefits compared to conventional tires.
Tubeless mountain bike tires definitely have their good points, such as
lower weight, less flats and decreased rolling resistance. In order to
seat the things securely on the rim, however, it's often necessary to
use a compressor or a CO2 cartridge to deliver a high-pressure shot of
air. That said, there's now another option, in the form of the Airshot.
When it comes to inflating bike tires on the road, there are two
options: a compact hand pump that requires some exertion, or a
single-use CO2 cartridge. New York-based DesignAir Innovations, however,
has created another one. It's called RideAir, and it's refillable
portable compressed air pump.