80/100-21 51M TT + 110/90-19 62M TT Bridgestone Battlcross X10 Sand Motocross Tyre Pair New-generation Battlecross X10 sand terrain: superior traction developed on the race track with top competition riders, now available for everyone! Bridgestone has totally redesigned the block pattern of its sand terrain cross tyre with the help of the sport's top riders in competition. Sand and mud traction has been improved significantly, giving all riders the opportunity for better performance and results. The new X10 block design enables the tyre to self-clean, even when the blocks start to wear down. Improved design and repositioning of blocks gives riders more control of sideslip due to loss of rear wheel traction.