check out those tyres - envoiromental!!.
At the worlds in Valkensward couple of years back had the sunken tyres round the track, bob the builder caught his pedal on one in the last turn, took him down proper, ouch.
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'UnTrailBoss': Team Commencal, Yokohama Ditchfinder Tyres, Barrafuldi Goggles, Stadium Helmets, Hallman Leathers, SIS and Nostalgia Industries.