For 2012 we have stepped up our game with this stunning 24” jump bike (available in 4 colour-ways). As with all mafiabikes products, we try to give you more for less and Blackjack is no exception. Blackjack features a 4130 main frame with removable brake hardware (for those who fancy getting their street on). It also comes with a rear U brake should you fancy hitting up your local trails. Double wall rims are standard as is a genuine fat mafiabikes pivotal seat. Rigid forks are dialled in out of the box, but the frame geometry is ready for suspension forks should your budget allow. All this for under £300?? 4130 chromo mainframe with integral seat clamp, tiny drop outs & removable brake hardware, double wall alloy rims, mafiabikes (fat) pivotal seat/post, kenda k-rad whitewall tyres, alloy semi sealed hubs, 3 piece 4130 samox crank set, alloy platform pedals, sealed Spanish 19mm BB, U-brake with clear pads, tapered forks, sealed internal headset, 28” wide bars. Weight: 28.3lbs. Forks: 425mm axle to crown. Bar diameter is BMX 22.2mm at stem.