From today through next Saturday, Toys R Us is having "The Great Bike Trade In" event. You'll be able to trade in any old bike for a new one and you'll get a discount depending on the purchase price of the new bike!

$50 off a bike purchase of $149.99 or more
$30 off a bike purchase of $99.99-$149.98
$20 off a bike purchase of $99.98 or less

Also, you can bring in your old bike helmet to get 25% off a new one!