the needle is at 110 in above shots, look carefully
Don't forget that Deluxe comes with bigger tyres and rims and still punching out 110.
GS tyre/rim config is a joke for a 150CC cruiser.
Put the same tyres and rims of Deluxe on GS and then check on highway, result would be as i mentioned above.
(though GS would go like a car on those speeds while Deluxe might give the feeling of earthquake, but that's whole different debate )