An example of a low rider front rack is: http://circlecitybicycles.com/bracks.htm or http://www.outdoorsportz.com/BGRCOOO...ml?051602-6628 and example of a more aerodynamic pack is: http://cgi.ebay.com/ws/eBayISAPI.dll...tem=7162266653 and finally a large wedge shaped seat bag is the Trek Pro Pack 1230CC Large Seat Bag on this page: http://www.stifsport.com/gear/select...productid=2149 the front packs add aerodynamic efficiency by shunting air around the turbulant pedal area and breaking the swirling vortex of air coming out of the front wheel/spokes. MIT Press' original "Bicycling Science" discussed the improved air flow of low front packs. Special low rider racks are made to fit a bike with front shocks, but the panniers hit rocks that are over about 5 inches tall - but there is a rack where you can move the front packs up for the rocky trail and back down for the superb balance and aerodynamics- see: http://www.oldmanmountain.com.