Overview Product Description Seattle Bike Tube XLC 700x28 Perfectly reliable with its butyl rubber construction, this XLC 700c Presta Valve Tube also sports a 60mm length valve stem so you can use this tube with deeper profile rims without having to use a valve extender. Product Videos Custom Field Product Reviews Write a Review Write a Review × SBS Seattle Bike Tube XLC 700x28 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *