Because it's hard to know when you're going to get a flat, it's always good to have extra tubes on hand. Specialized's Airlock Self-Sealing Tube seals small punctures so you can keep riding.
|Option||Barcode||Manufacturer's Part Number||Store SKU|
|Schrader Valve / 20 x 1.75-2.125||00719676283159||0313-1543||50158|
|Presta Valve / 26 x 1.5-2.2||00719676283128||0313-0523||48038|
|Presta Valve / 700 x 20-28c||00719676283081||0303-0503||47210|
|Presta Valve / 700 x 28-38c||00719676283098||0303-0506||39892|