1·This is because tubeless tires experience fewer pinch flats and even rim contact occasionally is okay.
这是因为无内胎轮胎的经验较少的单位，甚至捏轮辋接触有时是好的。
2·The advised tire pressure for tubeless tires is between 30 and 40 psi.
该建议的无内胎轮胎压力轮胎是30至40磅。
3·The invention concerns the structures and production of tubeless tire beads the seal of which on the rim and the resistance to degradation of which are increased.
该发明涉及的结构和无内胎轮胎珠生产的密封环，其中退化和其中增加阻力。
4·Tubeless tyres - among which the rear ones are wider endowing extra stability - enhance safety.
无内胎轮胎-其中后方的是更广泛地赋予额外的稳定-加强安全。