Surprisingly not, I think the 2l coke bottle full of fuel in my backpack took all the impact, made for a nice soft landing actuallyThe poor subframe didn't fare so well, now I know why its a good thing having an aluminium subframe so you can bend them back.
It's a Clarke oversize tank. Ugly as dogs nuts but takes capacity up to 11.3l. I did 110k's of riding and hadn't hit reserve yet so it's useful for the longer rides.
I've been trying to find one of the GasGas OEM larger tanks but Motocross Center says thay are on backorder. Be careful with carrying fuel on your person or attached to the bike. In Tennessee, a guy had a spare gas can attached to the back of his four wheeler, he looped out on a hill and the can was punctured by the hot exhaust. He blew up like a bomb, he was airlifted out by a helicopter, I'm not sure he survived. I saw the aftermath, 4 wheeler was melted into the ground with a 10 foot 360 degree black burn radius. Crazy stuff.