I call bs on 139 degree air temps.

Go check the xo1 traxxas forum

I know some guys use a GRP tire up to 160 mph

i advise you to check yahoo weather for riyadh & kuwait . These temps recoreded in shade.
Thanks for advise about the xo-1 tires though. it won't help here during acceleration.

I can attest to that level of heat. Been to the area several times. No joke on the heat. People in the summer usually come out as the sun goes down. It's nothing to go shopping at a mall at midnight.

Anyone using the new protec 100c 6700 mah? Will they fit under the body?

i uesd several types of 6S lipos . Single and dual packs all will pop the body above.

The hottest temperature on earth was 134deg in 1913

Unless that has changed

Not to shift the rc topics . Next thursday yahoo weather says it will hit 122F in shade in the gulf city of kuwait. in direct sunbeam it's over 137.

anyway, i hope it will become a little cooler next days during dawn for my speed runs.

Does it crack easier?

I want to buy some but want to make sure the Protecs will fit

Honestly i didn't use the amain brand protrek but i used many other brands, all will raise the left side a bit depinding on the capacity of the pack. for example all 2 packs of any 3S will raise the body. Also single 6S 5000 mah will left it also but you can still use it because from distance you'll never notice this different..

My advise check that battery dimension ( it's hight ) and you'll easily guess if it's perfect fit under the body or not.

Btw, how many cells that battery got ?

4s, 6700mah

Riyah shows 111-116 for the next 10 days on weather.com
Kuwait City shows 115-120 for the next 10 days

doesn't seem like 139 to me. just sayin'

lol at direct "sunbeam". well it was 105 in the shade here (Houston Texas) last month so that's 120 in direct sunbeam. Yeah, we don't measure it that way.

Don't bust on him. He said 139° in the sun. That I can believe. You can actually burn the tops of your feet through black shoes over there!

I say go for that speed run!! Have a great time trying, and let us know the results

Try putting duct tape or something similar on the inside of the tire to prevent ballooning and exploding the tire. Use good glue, and plenty of it!

Rcmiket .. Thanks for your words and your understanding of what i'm writting.

Racer 591 : send me a link of that battery and i'll tell you iif it's fits perfect or not depending on it's dimensions that i'll get.

I think I remember seeing some people using high strength fishing line to keep the tires from ballooning too much. Get some high strength braid line and wrap it around a few times. Should be more than enough.