Our Cobb Premium Bicycle Tubes are made of thin high-grade butyl rubber to resist pinch flats and leak downs while offering high performance. We offer two diameters and four presta valve lengths to accommodate a wide range of tire widths and rim depths. The presta valve is threaded externally, so use the included nut to prevent that annoying valve rattle in your rim. Grab a few extra for friends or make a friend out on the road because you’re prepared.
What is our Exclusive 30/60 Comfort Exchange Program?
We at JCOB by Speed & Comfort, are delighted to offer our demanding customers a higher level of professional service. As such, we offer our 30/60 Comfort Exchange Program to all seats purchased via our online-store.
You may return the seat for a full refund within 30 days from the seat's original delivery date if the seat is returned to us undamaged. Even if the seat has signs of normal wear and tear due to the extended test rides, you may still exchange the seat for a "No Questions Asked" program in which you have 60 days from the original seat's delivery date to find your ultimate comfort. (For the dealer purchased seats, the responsible dealer policy applies)