Another idea I had was to get some fork clamps and going off that. Does anyone know the diameter/size of the bottom of the fork? I know the upper portion is 31mm, but I cant find the size for the bottom.

 

Seems like I found something. TBolt has a longer than stock axle. It's a little over an inch longer than stock, and I think that will work.

CRF110 12mm Axle Grade 12.9 - TRC-0242 - CRF110 Suspension Chassis Wheel - CRF110F - Japanese Mini Bike Parts - TBolt USA, LLC

Shop at TBoltUSA: CRF110 12mm Axle Grade 12.9

tboltusa.com

But if anyone has any other/better ideas, please let me know.

 

If you have (or have access to) a drill press and a lathe, why not make your own?
Drill and tap a 6mm hole in the axle ends, and turn down a 2" piece of nylon round stock on the lathe.
Drill a 6mm hole through the center, use a long allen head bolt and a couple of washers, and add a 6mm nut to jam against the axle end.
Below is a pair of bar end sliders I made about 10 years ago.

 

I definitely did not consider tapping a hole into the axle. Good idea!
What are those rubber pieces to go into the bar ends? Where did you get that from?

 

Those are short pieces of fuel line with a flat washer on the end and a serrated flange nut. You snug the allen head bolt up enough for the nut to catch, insert it into the bar ends, and then tighten the bolt up, drawing the nut down and expanding the fuel line inside the handlebar.

 

I’ve pondered if a set of bmx axle pegs would work as sliders. Guess that the biggest problem would be the length of the axle tho.

 

I run these on my TTR125:

TST Womet-Tech Universal Mini-Bike Axle Slider Kit

 

I don't understand how those mount to the axle. I'm dumb.

This is what I ended up doing. I got the axle from TBolt that I linked before, then bought two Milwaukee hole saws and fitted Woodcraft slider pucks on them. All I had to do was drill two holes across the hole saw bits. Pics below.
Also ended up using the off the shelf kit from woodcraft for the bar ends. They weren't expensive at all so I just went with that since they're replaceable and whatnot.

 

You simply slide the metal pieces onto the end of the axles and the screw the end caps into them.

Your solution ended up looking good thou.

 

Now I need to figure out something for the footpegs. I havent found any kits searching online for the stock footpegs, so it seems I might have to order aftermarket pegs. I tried playing around with U-Bolts and whatnot to try and make something work but nothing really came together for me since the stock pegs are hollow inside with no grid/holes to mount anything to.

I havent searched the forum yet, but does anyone know of an aftermarket peg that fits onto these bikes?

-edit-
there seem to be many options out there for aftermarket pegs. I would love to figure something out for the stock ones, though.

 

Can you post a pic of the footpeg, from the top looking down, to see what you have to work with?

 

 

I was trying to use those two holes on the inside but everything I mount to it is too far on the inside/doesnt stick out enough.

 

how about a piece of flat stock steel to fit down inside the opening, with two holes drilled in it, then cut a piece of a Dollar Store cutting board and countersink two holes to fasten it to the flat stock from the bottom. Cutting the cutting board a half-inch wider than the footpeg shape all around would allow the bolts to draw it up tight. If the need be, tack weld the flat stock to the peg to secure it.
The bolt ends and the nut would be recessed inside the footpeg.

 

I wasnt thinking of welding because I dont have a welder, but you sent me down the right path, I think. I realized my buddy has a welder, so thanks for that. Lemme see what he's up to.
Good ideas you got there.

 

Supermoto Footpeg Sliders - Warp 9 Racing

www.warp9racing.com

 

I didnt think those would work because the teeth on the stock pegs aren't that deep.

So this is what I ended up doing. I got a piece of metal welded on both sides, drilled a hole, and attached some skateboard wheels. 4 pack of wheels for 20 bucks, and those can be flipped after a crash so we're talking essentially an 8 pack of wheels for less than the sliders linked above, for example.
Here are some pics:

I intend on cutting the excess metal around the pegs at some point, but I think its good for right now. I tested them out and the plastic hits the ground well before any metal would. The peg folds up too so its not like its going to wear away and have metal touching the ground at any point.
Thanks, everyone, for your help/suggestions.