Maxxis Freeride 26 Inch Tube
Here's some burly rubber for that burly bike you put together. Nothing ends that downhill party like a flat, so make sure you can fix them on the fly.
After blowing both tubes on my bike on a rocky 5 foot drop, I bought a few of these tubes based on reviews. Same trail, same drop, these worked flawlessly. Wanted to go tubeless, but for this price I could by plenty of tubes to last me longer than it would cost me to go tubeless. Thinking of ordering a few more as backup. Can't beat the price.