I saw this yesterday. The tester has the credentials to know what he's talking about. Of course he's also a Yamaha dealer but you can tell he's an enthusiast and seems to be sincerely impressed. Two months til we can see them in person.
Just watching this get down the trail at a good pace makes the suspension shine. Appears very planted. Very minimal body roll. The wheels follow the terrain and the operator and passenger aren't getting tossed around. The more I observe the happier I am I've waited all these years to get into sxs's
Rock crawling setups usually have a fair bit of droop. I don't think this thing will be a speed demon but I do think it'll have more than enough torque to reward someone with enough know how to get it to the ground and yet at least cruise well at 50ish. If it does 60 wrung out I'll be more than happy. ( as long as it gets there reasonably quickly )
I have a 2014 Yamaha SR Viper LTX SE snowmobile and the stock rear suspension had little or no droop or set-in. It has a 3 cylinder 135 ish horsepower but I couldn't ride it fast comfortably because it would beat the heck out of me or anyone who rode it. I installed Axis Pro shocks in all 4 Positions with about 3-4 inches of set-in and a good shim package with adjustable compression and rebound dampening and can now cruise over 1-1/2 - 2 foot moguls comfortably at 50 MPH. The droop allows the suspension to drop into holes and provide a controlled compression on it's way back to neutral or through neutral and upto full compression. It really does improve the controlled ride and comfort of a vehicle.
The proper term is sag. Sag determines the needed preload for the added weight of the rider and gear.
Along side of the test impressions I really like a lot of the little things that yamaha did.
The dual stage uni foam filter: not only is it huge, it is reusable.
Cv boot guards: though not terribly robust looking, they look To be able to deflect sticks and rocks that would otherwise tear a boot
The cross drilled rotors and 2 piston brakes : I would have upgraded anything less to be honest. If you look close you will notice a rotor rock guard in place. No more wiped out brakes/ hubs /wheels due to rock intrusions.
I could go on but it is getting late.... I'll point out more observations later.
Sorry Knuckle Dragger I used droop, which is an acceptable term in your previous post. Didn't intend to offend! I my world we don't have a set "word to" describe sag. I've typically used set-in which I probably picked up from our engineers.