Yahoo Autos 2024 Chevy Colorado ZR2 Bison gets big tires, fancy bump stops
As with the previous generation, the 2024 Chevy Colorado is getting a special ZR2 variant with unique parts from American Expedition Vehicles (AEV). It's once again called the Bison, and it blends visual and functional upgrades to increase the ZR2's trail capability above its already high levels.
Much of the Bison is the same as a regular ZR2. It has the same chassis and powertrain, the latter being the high output turbo four-cylinder making 310 horsepower and 430 pound-feet of torque. Electronic locking front and rear differentials, and of course the Multimatic spool valve shocks are all standard.
But the suspension isn't quite the same as the ZR2. The Bison picks up a set of jounce shocks or bump stops, also from Multimatic. These help make hard landings less jarring. The Bison also sits on 17-inch beadlock-capable wheels from AEV, and they're wrapped in 35-inch mud-terrain tires, rather than the ZR2's 33s. These tires help increase ground clearance by 1.5 inches to 12.2, which gives it more clearance than Jeep Gladiator Mojave and the new Ford Ranger Raptor. And as for approach, breakover and departure numbers, they're 38.2, 26.9 and 26 degrees respectively. It tops the Ranger Raptor in all those areas, if just barely, though the Gladiator has a better approach angle.
