Serfas Thorn Proof Inner Tube (Schrader Valve) Underwear & Socks 2 Cyclone Chain Scrubber –

2 Cyclone Chain Scrubber – Instructions

Comfortable

Warm-up and cool-down methods

Engineered for optimal lift and to withstand years of use

Serfas Thorn Proof Inner Tube (Schrader Valve) Underwear & Socks 2 Cyclone Chain Scrubber –Serfas' most puncture resistant tube All Tubes Are Inflated For 24 Hours To Test For Leaks Presta Valves Now come With Removable Valve Cores Presta Valve Stems Are Threaded All The Way Down Presta & Schrader Valves Available High Quality Premium Construction Sizes: 20 x 1. 5 2. 2 Schrader 26 x 1. 75 2. 2 Schrader 27 x 1 1 4 Schrader 29 x 1. 9 2. 125 Schrader 700 x 25 32c Schrader 700 x 35 43c Schrader