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 The perfect solution for marathon racers and trail and enduro riders that are looking for a lightweight, resistant and compact spare tube The volume of the Scorpion SmarTube is up to 50% less than an equivalent butyl tube making it the ultimate spare tube: it saves space and doesn't add weight on the trails Do not use with rim brakes Pirelli Scorpion SmarTube Tube - 29 x 1.8 - 2.2, 42mm Presta Valve Labeled Size: 29 x 1.8 - 2.2 ISO Width (mm): 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 Shaft Type: Smooth ISO Diameter: 622 / Road / 29" Valve: Presta Med 41-55mm Valve Core: Removable Weight: 75 Tube Compound: Thermoplastic Elastomer Pirelli Scorpion SmarTube Tube - 29 x 2.2 - 2.6, 42mm Presta Valve Labeled Size: 29 x 2.2 - 2.6 ISO Width (mm): 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 Shaft Type: Smooth ISO Diameter: 622 / Road / 29" Valve: Presta Med 41-55mm Valve Core: Removable Weight: 100 Tube Compound: Thermoplastic Elastomer Pirelli Scorpion SmarTube Tube - 27.5 x 2.2 - 2.6, 42mm Presta Valve Labeled Size: 27.5 x 2.2 - 2.6 ISO Width (mm): 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 Shaft Type: Smooth ISO Diameter: 584 / 650b / 27.5" Valve: Presta Med 41-55mm Valve Core: Removable Weight: 95 Tube Compound: Thermoplastic Elastomer
