How about a bike overhaul giveaway..? Maybe like a 1st/2nd/3rd and a grand prize full overhaul:
$500 gift card
Winter storage and spring prep voucher to winner's nearby bike shop (maybe up to..idk..$350 value?)
Full gear package
Full bike overhaul-
Galfer pads/rotor combo
Longshot i know..but if its supposed to be "the end of the world" this year..y not go big..?