Would someone please explain what these do and how to adjust them please?

[stangman327]

I have the basic gist on its function but have zero experience on how and when to adjust. How do we even know its set properly to begin with?

Also what about the rear suspension settings as well...

[sixpack577]

The hex is preload, the flatblade inside it is compression, and there is another flatblade screw on the bottom of the fork tube, and that is rebound.
The rear shock will have a flatblade screw top and bottom for rebound and compression, and the lock rings on top of the spring are for preload.
Preload is set by measuring suspension sag, and if you are between 150 and 200lbs in gear, the stock suspension should adjust fine for your weight.
If you are much over 200lbs, you will need heavier springs inside the forks for ideal handling.
Sag for the street is average 35-40mm, 30-35mm will handle curves better but be a firmer ride.
Proper preload gets you started, then compresson and rebound are set, and can be fine-tuned on the roadside.
I would suggest watching some Dave Moss videos on youtube for a better understanding of what you are trying to accomplish, then come back here and we can help you dial it all in.
Setting suspension is trial and error, but once you figure it out, it will take your riding to the next level, as when properly set, you will have much more control and better braking as a result.

[stangman327]

Thanks Sixpack!

[sixpack577]

Thanks Sixpack!

Yes sir

[Cruising180]

I have the basic gist on its function but have zero experience on how and when to adjust. How do we even know its set properly to begin with?

Also what about the rear suspension settings as well...

View attachment 1689422

Thais will help you set up your rebound. Compression is more of a set it to where you like it to a degree adjustment. Preload as @sixpack577 said should be the first adjustment you make. But before you touch anything buy a MotionPro shock spanner and brass punch to adjust your shock preload. Also go to your owners manual and make sure everything is set to the factory settings. That'll give you a good baseline to start from. Write down all your adjustments in the manual because you WILL forget. It'll save you a TON of frustration and busted knuckles.

Shock Collar Spanner Wrench 68/87mm - Motion Pro
Shock Spanner Punch - Motion Pro

[sixpack577]

Thais will help you set up your rebound. Compression is more of a set it to where you like it to a degree adjustment. Preload as @sixpack577 said should be the first adjustment you make. But before you touch anything buy a MotionPro shock spanner and brass punch to adjust your shock preload. Also go to your owners manual and make sure everything is set to the factory settings. That'll give you a good baseline to start from. Write down all your adjustments in the manual because you WILL forget. It'll save you a TON of frustration and busted knuckles.

Shock Collar Spanner Wrench 68/87mm - Motion Pro
Shock Spanner Punch - Motion Pro

I disagree with that guy.
Number one, he says that "compression cannot be adjusted when sitting still, without riding it over a bumpy road".
Not true, it IS an easy adjustment sitting still, but just like rebound And preload, you will not know until you ride it, and you will always make some adjustments to all after.
Number two, he says "the rear rebound should snap up and not settle".
Not true, as then you will have a pogo-stick that will bounce hard over every bump.
Properly set rebound should allow you to grab the tail, lift up, and have a little slack, an inch or so, to move up and down, otherwise...pogo-stick.
That's why I recommended Dave Moss, a real suspension guru, not just some youtube guy with a bunch of views.

[Cruising180]

I disagree with that guy.
Number one, he says that "compression cannot be adjusted when sitting still, without riding it over a bumpy road".
Not true, it IS an easy adjustment sitting still, but just like rebound And preload, you will not know until you ride it, and you will always make some adjustments to all after.
Number two, he says "the rear rebound should snap up and not settle".
Not true, as then you will have a pogo-stick that will bounce hard over every bump.
Properly set rebound should allow you to grab the tail, lift up, and have a little slack, an inch or so, to move up and down, otherwise...pogo-stick.
That's why I recommended Dave Moss, a real suspension guru, not just some youtube guy with a bunch of views.

Dave Moss is the best out there.