This Dirt Bike Clock is a massive, Rotating gear wall clock that is 34" tall. Custom adapted, very quiet 120v motor and custom designed 3d printed components to allow the gear to rotate. This clock is huge! See the photos for comparison to the Chevy small block clock. This Dirt Bike clock is made from the engine and rear tire drive sprokets/chain. Free shipping within the US! The clock mechanism runs off a AA battery (included) and the gear rotation runs off a 120v wall plug. The wire has a rocker switch on it. It is recommended that you turn off the motor when you are not around to enjoy it. The motor will last longer this way. The clock will still maintain time while the gear rotation is shut off. This Dirt Bike clock is 34 Inches tall and 11 inches wide. Its about 3" deep from wall mount to clock face. It also comes in a few different colors for the chain. Red, Gray and Gold.