Looking to smooth out the ride on my 2021 Grizzly. Rides good now but 11 back surgeries I'd like smoother so ride mostly on hard pack and gravel some rock and mud some hills nothing much. Looking at terra-bit tires. Any suggestions are always welcome. Or would shocks be to first improvement?
Here are some ideas to consider:
1) As you don't haul much heavy mail new expensive shocks may not be used to their full benefit, so may not produce a result worth the $$$$$ spent. I've
ridden with other members using Elka shocks to see how their Griz handles in rough terrain compared to a stock Grizz. The Elka shocks allowed higher speed travel over whops and produced a smoother suspension travel over the length of the shock travel but to realize these benefits the Griz was put to more than you describe as your style. Here is one of our members getting lined up to drop off a ledge;
https://flic.kr/p/fw1n2E
and with the suspension compressed;
https://flic.kr/p/fw1mro
2) Also notice his wheel and tire combination, the wheels are not near as wide as the tires giving a roll to the sidewalls for added flex to soften the ride. The tires in those pictures are Maxis B.H. 2.0's which are good tires in most conditions. I use the Maxis O.G.'s which are similar to the 2.0's with a history of lasting much longer in tough conditions.
https://flic.kr/p/fwVycW
I like the stock wheels which are narrow causing a roll in the sidewall. The roll has the benefit of a softer ride but the radial design of the Big Horn tire models allows for the sidewalls to flex the faster you go, so I run a much higher tire p.s.i. than most but at speed the sidewall still flexes. You will find the p.s.i. that works best for you in your conditions. Oh, I like a tire that is 26"s true diameter for 12" wheels.
3) As for the stock shock position setting after the new tires and wheels are installed, go to the softest position and ride, to then add one notch for comparison. You may find with the new tire/wheel combination you like stiff shocks with very low tire p.s.i.
4) Another thing to consider trying is unhooking the sway bar for a test ride. We consider these I.R.S. machines but the sway bar does transfer a lot of torque from one side of the bike to the other. Maybe freeing up the corner to move will change the impact felt in your back. Here is a picture of how a sway bar transfers torque;
https://flic.kr/p/fwVwM5
Keep us posted on your choices and results.