Senior Member
Join Date: Feb 2006
Location: Sin City, Nevada
Posts: 2,896
Bikes: Catrike 700, Greenspeed GTO trike, , Linear LWB recumbent, Haluzak Horizon SWB recumbent, Balance 450 MTB, Cannondale SM800 Beast of the East
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The lower the center of gravity on a trike, the more stable it will be going into a turn at higher speeds. Some owners have switched from 20 to 24" tires but I'll bet it changed the handling characteristics of the trike. Catrike used to make a models with 16" wheels as did Greenspeed. However, there were a very limited selection of 16" tires. 20" wheels are used on a lot of BMX bikes so the selection of tires is much greater. I use BMX tires (Tioga Powerblock S-Spec) since buying my 2013 Catrike 700. It is available in a couple of different widths and has proven to be a tough tire at a reasonable price.