▁f ences ▁require ▁the ▁r ider ▁to ▁keep ▁their ▁horse ▁straight ▁between ▁their ▁hands ▁and ▁legs , ▁as ▁it ▁is ▁easy ▁for ▁a ▁run - out ▁to ▁occur ▁due ▁to ▁the ▁narrow ness ▁of ▁the ▁f ence . ▁ ▁These ▁f ences ▁are ▁often ▁used ▁in ▁combination ▁with ▁other ▁obst acles ▁to ▁increase ▁their ▁difficulty , ▁such ▁as ▁right ▁after ▁a ▁bank ▁or ▁as ▁the ▁second ▁obst acle ▁in ▁a ▁b ending ▁line . ▁This ▁tests ▁the ▁r ider ' s ▁ability ▁to ▁reg ain ▁control ▁of ▁his / her ▁horse ▁following ▁an ▁obst acle . ▁ ▁Bank ▁ ▁These ▁j umps ▁are ▁steps ▁up ▁or ▁down ▁from ▁one ▁level ▁to ▁another , ▁and ▁can ▁be ▁single ▁j umps ▁or ▁built ▁as ▁a ▁" st air case " ▁of ▁multiple ▁banks . ▁ ▁B anks ▁up ▁require ▁large ▁amounts ▁of ▁imp ulsion , ▁although ▁not ▁speed , ▁from ▁the ▁horse . ▁The ▁drop ▁f ence ▁incorpor ates ▁a ▁down ▁bank . ▁ ▁Both ▁types ▁of ▁banks ▁require ▁the ▁r ider ▁to ▁be ▁centered ▁over ▁the ▁horse . ▁Down ▁banks ▁require ▁the ▁r ider ▁to ▁lean ▁further ▁back , ▁with ▁sli pped ▁re ins ▁and ▁he els ▁closer ▁to ▁the ▁front ▁of ▁the ▁horse , ▁in ▁order ▁to ▁abs orb ▁the ▁shock ▁of ▁the ▁landing . ▁ ▁B ounce ▁ ▁A ▁b ounce , ▁also ▁called ▁a ▁no - st ride , ▁is ▁a ▁f ence ▁combination ▁sometimes ▁found ▁on ▁the ▁cross - country ▁course ▁of ▁event ing . ▁It ▁is ▁also ▁very ▁commonly