Looks like I can get a litepro seatpost around 320 grams for pretty cheap, so if anyone is looking for a BioLogic™ Zorin PostPump™, 34 x 580 mm, let me know. $25+shipping. I'll drop about a pound without it. It's a pretty cool invention if you don't already have a mini pump or cannisters. I also took off the double kickstand. Super light bike loaded down with so much stuff!!!