Schwalbe crazy bob bmx tyrechilled on wild tricks and steep ramps the wraparound tread has great grip in half pipes special strengthening protects the sidewalls features size 20 x 185 etrto 47 406 puncture protection compound orc bar 4 5 7 0 psi 65 100 weight 630g epi 67 load 85kg size 20 x 210 etrto 54 406 puncture protection compound orc bar 4 5 7 0 psi 65 100 weight 720g epi 67 load 85kg buy schwalbe tyres from chain reaction cycles the worlds largest online bike store