I have a $30 air tank from auto zone. It does quite well. I refill it with my cig lighter air compressor. I've also seen tube bumpers sealed up and then fitted with a quick disconnect and pumped up to around 125psi. I thought that was cool..........

Maybe fill them with helium and float across the mud...:scratches head.....hmmmmmmm

- Daily Driver - 2004 Corolla
- Off Road - 1992 Pickup SR5 3.0L 4x4
- Fun - 2001 Camaro SS (320 RWHP/330 RWTQ)
http://community.webshots.com/user/1fastss