Stomp Z2-140 Anniversary model £12950.00. Twin beam chassis for added high speed stability and longer travel rear shock and 140cc engine producing 14hp makes this a significant step up over stomps lower priced pit bikes. Designed for very confident young riders and adults of all sizes, have fun no matter the weather with this great little off road machine. The Anniversary model brings a limited edition 10th anniversary decal kit, Maxxis Tyres, oil slick finished exhaust shields and gear shifter. A great looking bike with that little bit extra from the regular 140. REF