I’ve been thinking lately of ways I could shave some grams off my new bike, especially around the wheels, but without spending too much money. I’m no weight weenie by any means—my kickstand attests to that—but I’m also not above reaching for some low-hanging fruit if I can. Enter TPU tubes. If tube manufacturers and the Internet are to be believed, TPU is the material of the future, and the next best thing after going tubeless—which is honestly too messy for my taste. After all, w...