Thanks for the help, no spacer.

can anyone tell me why some guys put holes in the tires.i know why holes are in the wheels.and do you put holes in the front tires on a buggy also.i dont understand this. why mess up good tires.

Water drainage and air release as some inserts need the air escape routes in order to function as designed.

its mainly used with the closed cell foams, the air needs an escape route and it wont go through closed cell foams easily. Dont recommend it with standard foams. The hole is only roughly 1/16" so your not really ruining the tires.

Here is the reason!!!!
Tape the hole shut on the rims. I wish these companies would just stop putting holes in there wheels. All they do is let dust into your foams and they start to break down and get ruined.. With having a hole in the tire instead the dirt,dust and water from cleaning get flung out of the foam.
All foams need to breathe. If you don't put a hole in the tire after you tape the rim hole closed it will just bounce like a ball if air tight.

Proline rims dont have holes in the rims...also a hole in the tire isnt needed with standard foams..they breathe well enough without a hole in the tire.

Wow are they really going to release a b4.2?

No
B4.1.2e WE2

B4.1.2e WE2
That's how Kyosho names stuff. Just keeps adding on.

Since we are talking about foams, should I use the standard foams that came with my new kit or order some closed cells? They look more like packing material than tire foams but this is my first 1/10 scale buggy so I really don't have a clue. Thanks

They are fine for a first timer

Correction, I shouldn't have said my first 1/10 scale buggy. I had a Tamiya Hot Shot back in the mid 80s. I remember how excited I was building that thing until I discovered I got to run it for about 6 minutes then charge for 8 hours. Thank goodness for brushless and lipos.

Is this being rumored?

Just run with what you have. I normally run stock foams unless a really high bite track

Amain has them listed as limited quantities and the b44.w has prompted the question