Mounts on the front forks in place of the front number plate/headlight Included mounting kit secures them to most front forks The included siphon kit integrates the auxiliary tank with the bikeÆs main tank, allowing fuel to siphon from the auxiliary tank to the main tank while riding; there is no need to stop The siphon kit drains the auxiliary tank completely before the main tank capacity is used Mounting hardware and siphon kit included. TANK GAS AUX F 1.3 WT