Fairdale Hareraiser 26 " Dirt Jump Bike - Matte Billiard Green Medium/LargeFairdale Hareraiser 26 " Dirt Jump Bike Matte Billiard Green Medium Large. This fully capable 26" DJ frame is made of 100% 4130 chromoly with a 3 8" axle slot integrated chain tensioners BSA 73mm threaded bottom bracket ultra short chainstays and a tapered 1 1 8 to 1 1 2 head tube with removable tabs for a traditional BMX style Gyro. Designed from the ground up to make the transition between riding a MTB DJ bike and BMX as seamless as possible.