This inner tube ensures less maintenance and more security! Hermetic Plus is a special rubber compound that is processed into an inner tube, the major advantages are less maintenance (less pumping) because the inner tube retains pressure up to 3 x longer compared to a standard inner tube and in addition the rubber is much stronger, which greatly reduces the risk of punctures. With these 2 facts, the inner tube is a welcome addition to any outer tire, of course this mainly applies to city and trekking bikes, but there is another target group that stands out where a 3rd advantage emerges. Namely E-bikes! These bikes have a limited range and tire pressure also has a huge influence on that, when you have the Hermetic Plus inner tube fitted, the pressure in the tires remains much longer, which can have a positive effect on the range, taken together with the fact of less pumping and more security against punctures, this is an ideal inner tube for any E-bike!

• Type of article: inner tube
• Inch wheel size: 28"
• Valve type: Slaverand/Presta/French
• Valve length: 42 mm
• Valve diameter: Ø6.5 mm
• Color: black
• Weight: 240 grams
• Tire size:
• 32-622 / 28 x 1 5/8 x 1 1/4
• 37-622 / 28 x 1 5/8 x 1 3/8
• 40-622 / 28 x 1.5
• 47-622 / 28 x 1.75
• 32-630 / 27 x 1 1/4
• 37-635 / 28 x 1 3/8
• 40-635 / 28 x 1 1/2
• 42-635 / 28 x 1 1/2