We have already decided in 2009 for the acquisition of the TS 1000. Unfortunately, the tires lose air what lies in the nature of things. Who thinks he can sometimes just inflate with a high-quality floor pump the tires back on operating hardness, will determine with greater sobriety, that this will not succeed. The valve heads are so short that even with a more modern standard air pump can not achieve this (see picture). The plastic rim itself is protected by a black plastic sheet that must be removed before they will even come close to the valve (see picture). Remove means, you have to dismantle the two wheels. The wheels are only held with a Phillips screw. The screw itself is relatively long. Since I do not intend to carry fragile cargo with the Wolfcraft there despite the vermouth drop with the tire 4 stars because the adjustment and the actual functions are managed. The system makes an otherwise high-quality impression. Wolfcraft should equip the valves with a valve angle or attach a valve extension of the mission. A short ball pump with valve extension in Wolfcraft design would certainly be the ideal solution. The higher price, the end customer certainly cope, because I must now organize or buy, which unfortunately is very time consuming another extension or another pump.