EUROPA XS TRIGEAR To expand the range of the Europa XS a tricycle undercarriage was developed. Although the fixed undercarriage imposes a slight drag penalty, fitting the optional speed kit minimises this effect resulting in only a very slight reduction in top speed compared to the Europa XS Monowheel. The nose gear is a castoring fork type with the same size wheel as the main gear. Steering is by differential braking on the main wheels. The nose wheel suspension is a dual system, the secondary safety cable limiting the total movement of the leg should the primary system fail thus minimising the risk of prop strike. ​ The XS Trigear can be supplied with a number of different engines, although we recommend those from Rotax. The Rotax engines currently range from 80 HP through to 115HP. The latter unit being turbocharged.