gearhead

noun

1. A mechanical device used to increase the torque of gears.

   “HLD has developed a linear belt actuator that circulates the belt in an unusual way, resulting in a gearing reduction of up to 40:1 without a gearhead.”

2. (informal)An enthusiast for new technology, or for motoring.

   “2000, "Ford Harley-Davidson Truck Rumbles Onto Web to Benefit Charities," PickupTruck.com (US), retrieved 23 Dec/07, A self-proclaimed gearhead, Leno loves fast Fords and hot Harley-Davidson motorcycles.”

3. A fan of the Gears of War media franchise centered on a series of video games.

   “It’s good to be free: Epic Games’ Gears of War is about to go weapons-free. The Xbox 360 smash has churned out sales of 2 million in just six weeks and soon enough, Gearheads will find free downloadable content on the Xbox Live Marketplace.”

   “For all you Gear-heads out there, Microsoft is going to release four new maps for “Gears of War” on the Xbox Live marketplace today.”

   “Epic’s got a reward planned for loyal Gearheads with the free “Flashback” map pack.”

   “Here are seven things Gearheads can look forward to in the Gears of War 3 beta.”

   “WHAT’S NOT SO GREAT: ❌︎ Will diehard Gearheads like this much change?”