▁to ▁a ▁can opy . ▁ ▁A ▁can opy ▁provides ▁no ▁aer od ynamic ▁benefits , ▁but ▁impro ves ▁cool ing ▁compared ▁to ▁a ▁fa ired ▁configuration , ▁while ▁also ▁reducing ▁sun ▁expos ure ▁compared ▁to ▁r iding ▁without ▁a ▁can opy . ▁ ▁Thus , ▁a ▁" high ▁speed " ▁vel om obile ▁may ▁benefit ▁most ▁from ▁better ▁aer od ynam ics , ▁even ▁when ▁aer od ynam ics ▁hur ts ▁r ider ▁cool ing ; ▁while ▁at ▁the ▁same ▁time ▁a ▁" high ▁load " ▁vel om obile ▁may ▁benefit ▁most ▁from ▁improved ▁cool ing ▁( to ▁maxim ize ▁power ▁output ) ▁even ▁if ▁that ▁hur ts ▁aer od ynam ics . ▁ ▁The ▁ste ered ▁whe els ▁on ▁a ▁vel om obile ▁will ▁hit ▁the ▁fair ing ▁if ▁ste ered ▁sharp ly ▁enough . ▁ ▁M aking ▁the ▁fair ing ▁wider ▁can ▁give ▁space ▁to ▁ste er ▁the ▁whe els ▁more ▁sharp ly , ▁but ▁has ▁down - s ides ▁for ▁aer od ynam ics ▁and ▁width . ▁ ▁Although ▁sharp ▁ste ering ▁is ▁not ▁needed ▁at ▁speed , ▁many ▁aer od ynamic ▁vel om ob iles ▁have ▁a ▁much ▁worse ▁turning ▁circle ▁than ▁an ▁equivalent ▁un fa ired ▁cycle . ▁ ▁In ▁contrast ▁an ▁un fa ired ▁cycle ▁cannot ▁have ▁fair ing ▁inter ference , ▁and ▁so ▁even ▁with ▁the ▁same ▁wheel ▁and ▁r ider ▁configuration ▁can ▁ste er ▁a ▁much ▁t ighter ▁circle . ▁ ▁Ste ering ▁only ▁the ▁rear ▁wheel ( s ) ▁would ▁avoid ▁fair ing