UPDATE: This was written before Yamaha redesigned the 2021 models and removed the kidney buster, which gives the X2/X4 an even bigger advantage.
My take on the Teryx vs X2/X4:
Unless you fit in the big-n-tall category or are disabled and entry\exit is #1 priority the X2/X4 is superior:
There are some flaws in the Teryx, some of which you'll only discover by joining one of the various Teryx FB groups as few owners disclose these problems when potential Teryx prospectors inquire about Teryx flaws.
- X2/X4 has 69 HP to Teryx' 57.6 HP (Teryx officially shows 47 ft-lbs of torque. HP numbers are from various sites)
-Kawasaki doesn't sell any replacement frame parts for the Teryx. If you tweak something it has to be totaled out unless you repair it yourself. The roll cages are weak, ripping A arms off the frame isn't uncommon and tweaking the frame is common as well. You can literally build an X2/X4 from ordering all the parts separately.
-Steering racks don't seem to hold up very well. What good is a warranty if you're on your 3rd steering rack?
-Front diff actuator is garbage. Some are bypassing it with a cable actuated lever.
-The rear wet brake isn't up to snuff stock let alone if you add larger tires
-It's a must to run in low gear. It doesn't take many instances of not following this practice to blow a belt. On older Yamaha models you can eventually lower the life of your belt by constantly running in high when you should be in low, but rarely will one or two mistakes cost you a belt. The X2/X4 is ridiculously low geared so you rarely need to be in low but in extreme situations
-The Teryx CVT uses a wet clutch similar to Yamaha, but that's where the similarities end. It's nowhere near as robust with failures often taking out the primary, secondary, or both. In addition, you must remove much of the plastics and the gas tank to service the CVT. Both sheaves must be removed just to change the belt.
-Speaking of gas tank, many have problems with fuel contamination
-Apparently, to clean the Teryx Radiator, you have to take the whole front end apart.
-Despite the Teryx's fully-adjustable shocks, its ride is harsher than the X4 and inferior to the X2
-Teryx has noise, vibration, and cabin heat issues
-X2/X4 has better suspension travel and turning radius
-X2/X4 has a dry sump oil system and forged pistons and connecting rods. Can you say 'turbo ready'?
-X2/X4 has a 14 volt, 598 watt stator output vs the Teryx' 300 watt (as tested)
-X2/X4 has both paper and oiled air filters for maximum engine protection
-X4 has self-leveling rear shocks
-X2/X4 has 2000 lb towing capacity vs Teryx 1300 lbs
-X2/X4 now have a separate transmission divorced from the engine
-X2/X4 has helical-cut gears
-X2/X4 has drive-by-wire throttle
-X2/X4 has LED head and tail lights and the X2 has rear LED back up lights with the X4 already being prewired for them. This is even on base models
-X2/X4 has 10 year belt warranty and 20-year or 100,000-mile engine warranty when you use Yamalube. Kawasaki's 3 year warranty is nice but it's nice to not even need it.
-X2/X4 full belly skid plate design is better than the Teryx and probably superior to any other UTV model I can think of:
vs
-Teryx owners boast of its storage capability with the mini
rear bed. That rear bed is exposed to the elements even when you have the sunroof. X4 has just as much storage, it's just that it's split behind and between the rear seats. Look at the Teryx rear seats and there's no storage space between them like on the X4. We put our cooler between the rear seats and can access our food/drinks without having to stop and get out.
vs
What are the weak links?
Wish they wouldn't have installed the big tire kit or used 18 gram weights instead, but otherwise a good review
TERYX4 LE VS. WOLVERINE X4 SE - UTV Action Magazine
My take on the Teryx vs X2/X4:
Unless you fit in the big-n-tall category or are disabled and entry\exit is #1 priority the X2/X4 is superior:
There are some flaws in the Teryx, some of which you'll only discover by joining one of the various Teryx FB groups as few owners disclose these problems when potential Teryx prospectors inquire about Teryx flaws.
- X2/X4 has 69 HP to Teryx' 57.6 HP (Teryx officially shows 47 ft-lbs of torque. HP numbers are from various sites)
-Kawasaki doesn't sell any replacement frame parts for the Teryx. If you tweak something it has to be totaled out unless you repair it yourself. The roll cages are weak, ripping A arms off the frame isn't uncommon and tweaking the frame is common as well. You can literally build an X2/X4 from ordering all the parts separately.
-Steering racks don't seem to hold up very well. What good is a warranty if you're on your 3rd steering rack?
-Front diff actuator is garbage. Some are bypassing it with a cable actuated lever.
-The rear wet brake isn't up to snuff stock let alone if you add larger tires
-It's a must to run in low gear. It doesn't take many instances of not following this practice to blow a belt. On older Yamaha models you can eventually lower the life of your belt by constantly running in high when you should be in low, but rarely will one or two mistakes cost you a belt. The X2/X4 is ridiculously low geared so you rarely need to be in low but in extreme situations
-The Teryx CVT uses a wet clutch similar to Yamaha, but that's where the similarities end. It's nowhere near as robust with failures often taking out the primary, secondary, or both. In addition, you must remove much of the plastics and the gas tank to service the CVT. Both sheaves must be removed just to change the belt.
-Speaking of gas tank, many have problems with fuel contamination
-Apparently, to clean the Teryx Radiator, you have to take the whole front end apart.
-Despite the Teryx's fully-adjustable shocks, its ride is harsher than the X4 and inferior to the X2
-Teryx has noise, vibration, and cabin heat issues
-X2/X4 has better suspension travel and turning radius
-X2/X4 has a dry sump oil system and forged pistons and connecting rods. Can you say 'turbo ready'?
-X2/X4 has a 14 volt, 598 watt stator output vs the Teryx' 300 watt (as tested)
-X2/X4 has both paper and oiled air filters for maximum engine protection
-X4 has self-leveling rear shocks
-X2/X4 has 2000 lb towing capacity vs Teryx 1300 lbs
-X2/X4 now have a separate transmission divorced from the engine
-X2/X4 has helical-cut gears
-X2/X4 has drive-by-wire throttle
-X2/X4 has LED head and tail lights and the X2 has rear LED back up lights with the X4 already being prewired for them. This is even on base models
-X2/X4 has 10 year belt warranty and 20-year or 100,000-mile engine warranty when you use Yamalube. Kawasaki's 3 year warranty is nice but it's nice to not even need it.
-X2/X4 full belly skid plate design is better than the Teryx and probably superior to any other UTV model I can think of:

vs

-Teryx owners boast of its storage capability with the mini
rear bed. That rear bed is exposed to the elements even when you have the sunroof. X4 has just as much storage, it's just that it's split behind and between the rear seats. Look at the Teryx rear seats and there's no storage space between them like on the X4. We put our cooler between the rear seats and can access our food/drinks without having to stop and get out.

vs

What are the weak links?
Wish they wouldn't have installed the big tire kit or used 18 gram weights instead, but otherwise a good review
TERYX4 LE VS. WOLVERINE X4 SE - UTV Action Magazine