It was three years ago that we first heard about inventor Benjamin Krempel's PumpTire – it was a prototype bicycle tire that used wheel motion to keep itself inflated. While it was an interesting idea, it would require users to give up their existing tires, plus the peristaltic pumping mechanism would be compromised once the tread wore away. Well, he has now come up what sounds like a better alternative: the PumpTube.
Area Information Sensing (CAIS) system includes a sensor on the tire's internal
wall that monitors its interaction with the road surface and informs the driver
accordingly. In development since 2011, the CAIS is finally ready for
While not everyone is wild about adding motors to all-terrain bikes, if there’s one sub-type of ATB that could sometimes benefit from an electric boost, it’s the snow- and sand-slogging fatbike. We’ve certainly seen some electric fatties before, but the Xterrain500 adds what is quite a unique feature – the ability to run a custom 10-inch-wide front tire.
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.