Pirelli Scorpion SmarTube Tube - 27.5 x 2.2 - 2.6 42mm Presta Valve 545g 36t is the smallest number

36t is the smallest number of teeth that fits on a 120 BCD

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IGUS main bushing for smooth stanchion actuation and less binding

MAX UV-PROTECTION

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Pirelli Scorpion SmarTube Tube - 27.5 x 2.2 - 2.6 42mm Presta Valve 545g 36t is the smallest numberPirelli Scorpion SmarTube Tube 27. 5 x 2. 2 2. 6 42mm Presta Valve. Scorpion SmarTube is the mountain bike specific inner tube that blends the innovative features of TPU (Thermoplastic Polyurethane) a specific formulation for the riders that are looking for the best balance between protection against punctures weight and volume. SmarTube offers low weight and volume combined with a high level of reliability not available with an equivalent butyl tube