MAMMOTH 3.0 – 20″ SPECIFICATIONS 20” BMX bike Steel frameset A-Headset stem 20 x 3.0 Black tyres Steel V-brakes and alloy brake levers Quick release seat post clamp Kick Stand 10g Spokes Branded saddle Axil protection caps Single chain guard KIDS BIKE 135 - 150cm AGES 8-11 YEARSWHEEL SIZE 20″ ACCESSORIES MORE THAN JUST A BIKE. A BRAND - VIEW ACCESSORIES BIKE ASSEMBLY VIEW THE GUIDE