After discussing the matter and length and visiting the site to assess the situation, the wheel and castor specialists at Blickle’s Swiss branch designed a suitable solution in partnership with the train manufacturer. Blickle created a triple castor with an extended axle bolt. The customer requested a central wheel with a Blickle Softhane® polyurethane tread, providing a high load capacity and a low level of rolling resistance. The ALST series wheel is flanked by two tried and tested “Blickle Comfort” two-component solid rubber wheels of the RD series, which SBB was already using extensively. This setup provided the customer with a costeffective three-wheel version, removing the difficulty and danger of crossing rails.