MJH the 2 stroke motor that use Christini in there bikes are from GAS GAS Spain.Which have a complete top notch enduro line. But they use Yamaha motors in the 4 strokes models. InAttachment 8353 the professional enduro circuit the european manufactures are turning again in to 2 stroke models for racing. Its more cost effective! So next year you will see Beta & Sherco using 2 stroke motors again. Fantic from italy are using GasGas 2 stroke and Yamaha 4stroke in they enduro bikes.