Foam Inserts for Lunchbox size Tires

[toyolien]

Looking for recommendations for some good foam inserts as I'm trying to finish up my Konghead.

I have used these in the past, but find them a little too soft.:

https://www.modelsport.co.uk/schumacher-1-10th-truck-2-2-foam-tyre-insert-soft-/rc-car-products/16890

 

I really like the Proline 6194-00 dual stage truck foams in my Lunchbox but they're long discontinued.

 

Has anyone tried the Proline closed cell truck foams in Lunchbox tires?

https://www.modelsport.co.uk/pro-line-1-10th-truck-closed-cell-inserts-2-/rc-car-products/359771

[•Axle]

I have used these in both of the GF-01s I’ve put together, they’re definitely not soft and feel quite ‘blown up’ as it were.

https://www.ebay.co.uk/itm/111819926022

[toyolien]

How odd. I know Martin from rcbitz and hadn't even thought about those. Thank you. I'll get some ordered. How are they in the wet?

[isomer1]

I'm a big fan of Crawler Innovation's CWR-3013 foams, but sadly they, like the Prolines, have been discontinued. Thanks for the recommendation @•Axle

[•Axle]

3 hours ago, toyolien said:

How odd. I know Martin from rcbitz and hadn't even thought about those. Thank you. I'll get some ordered. How are they in the wet?

I’ve driven back from the park and walks a few times in the wet, it’s hard to tell really because of what the car is. Up hill it’s brilliant, with a 3300kv and short squirts of the throttle I’m getting up quite steep inclines without backwards rolling and grips really well with the big Vs.

[toyolien]

Ordered from RCBitz. I'll see how they go. I really like the Proline closed cell inserts, but at nearly 40 quid for 6, I'm not sure I can justify it. We'll see.

[ajdragon01]

Hi

 

If you don't mind me asking, what inserts did you have links too.  I am also looking for inserts for my Konghead.

[toyolien]

10 hours ago, ajdragon01 said:

Hi

 

If you don't mind me asking, what inserts did you have links too.  I am also looking for inserts for my Konghead.

These are what I used:

https://rcbitz.com/foam-tyre-inserts-4-for-rc-1-9-wheels-tyres-eg-tamiya/

[ajdragon01]

Hi

Thank you.

[RCvet]

Am I the only one who has used whatever foam came in some delivery package or I could find, cut to length, glue in circle and made my own. Not for anything serious racing, but I used to do that on Kyosho Big Brute which has about as much precision as a Lunchbox.  I have even done it on the CC-02 rock block tires.  

[ajdragon01]

Hi

I would try cutting them down my self, but unfortunately the last time I tried they didn't turn out right, and my hands have only gotten more shaky since then.

[RCvet]

Aaah, that matters then.  I would add though racers and crawlers become obsessed with some unicorn mythical foam property, for running a Lunchbox around whatever fits is likely fine.  Given it is a Lunchbox you could probably shove a PB&J sandwich in them and achieve results 

[nowinaminute]

On 5/24/2025 at 7:53 AM, toyolien said:

These are what I used:

https://rcbitz.com/foam-tyre-inserts-4-for-rc-1-9-wheels-tyres-eg-tamiya/

How do you find these?

[toyolien]

1 minute ago, nowinaminute said:

How do you find these?

They're ok and do the job. A couple of the ones I had weren't cut out the best and had they have been for a race buggy I wouldn't have used them. But, in a Lunchbox they are just fine.