Hutchinson squale mtb tyre hardskineffectively there are two squales the early 26x2 3 versions which have a slightly different knob pattern this first tire was co designed by nicolas vouilloz the later 25 version was slightly modified by the hutchinson ur team on the latter models the spacing and position of the transition knobs have been changed to make cornering transitions more predictable both these treads are aggressive enduro and dh tires the wider 25 tire also has three compound