Rolly Kid Steyr CVT170 & Rolly Loader Specification.. This tractor comes complete with a frontloader with tipping digger bucket and has a three position adjustable seat. For ages 3 plus. Mechanical features include a strong 12mm thick rear axle, covered integral fixed wheel chain drive, a pedal crank with eccentric bearing chain tensioning system and anti slip pedals,and a heavy duty front axle with suspension.