THE NITRO MOUSSE DIFFERENCEWe have put more than a decade of research and development into improving the less than desirable aspects of a mousse. In general mousses are known to be a compromise in performance on some level, but Nitro Mousse dramatically enhances the positives while greatly reducing the negatives. Nitro Mousse uses an incredibly tough micro-matrix of proprietary elastomers Increasing Durability, allowing Nitro mousse last over 2X longer than other mousses. Nitro Mousse contains a high concentration of Nitrogen which gives it a much Plusher, Pneumatic (air) feel, eliminating the dreaded "Dead Feel". The Nitrogen formula gives the Nitro Mousse a Low Pressure Predictable ride, Resisting Impacts and increasing Bump Absorption. The Nitro Mousse compounds allow for a more Lively, Progressive ride eliminating Deflection and providing a Lighter feel in motion. Nitro Mousse does not need a Break In Period and has been designed and tested to Perform Consistently in Temperature ranges from 30-100+ Degrees. Nitro Mousse's Performance and Durability all come at an Exceptional Price. ALL our NITRO Mousses are the latest GENERATION 2 version -which are offered in SOFT Black Wrinkly (6 to 8psi) and MEDIUM Grey smooth (10 to 12 psi). BEWARE of older (shrunken,Black, 12 to 14 psi) discounted Gen 1 stock imported into NZ in the past !! Go to the fitment chart below to work out the correct size Nitromousse for your tyre.https://www.nitromousse.com/#size-finder