Michelin Protek Max B4 Inner Tube 27,5x1,85/2,4 48mm Presta Valve

The Michelin Protek Max B4 inner tube is designed for riders with 27,5-inch mountain bikes, particularly for All Mountain riding. It has built-in sealant and a 48 mm Presta valve.

• Built-in sealant helps seal small punctures, with butyl construction
• Fits tyres from 27,5 x 1,85 to 27,5 x 2,4
• 48 mm Presta valve with a removable core for topping up the sealant
• Suitable for All Mountain use on demanding off-road rides
• Before ordering, check the ETRTO size on your tyre's sidewall: from 47-584 to 61-584

Technical specifications

• Product type: Inner tube with built-in sealant
• Material: Butyl
• Sizes: From 27,5 x 1,85 to 27,5 x 2,4
• ETRTO: From 47-584 to 61-584
• Valve type: SV (Presta)
• Valve length: 48 mm
• Valve outer diameter: 6.5 mm
• Valve core: Removable
• Weight: 355 g
• Intended use: All Mountain

Founded in 1889 in Clermont-Ferrand, France, by brothers André and Édouard Michelin, Michelin is still based in the same city today. For cyclists, it offers tyres, inner tubes and accessories for road, gravel, mountain biking and city riding. Its connection with cycling dates back to its early days: in 1891, it developed the first detachable bicycle tyre.