The phrase "gear changes" refers to the process of shifting from one gear to another in a vehicle with a manual transmission. It involves adjusting the gears to match the speed and power requirements of the vehicle. Full definition
As one might expect, the transmission also features Manual mode, with gear changes happening under the direction of the steering wheel — mounted shift paddles. (fourwheeler.com)
The combination provided positive, quick gear changes with a race car - like feel. (edmunds.com)
The shifts were just a little too soft for fast gear changes on a winding road or track. (cnet.com)