Continental Race 28 Supersonic S42 Inner Tube - 700c x 18-25mm - 42mm Presta Valve

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Continental Race 28 Supersonic S42 Inner Tube – 700c x 18-25mm | 42mm Presta Valve

Built for speed-focused road cyclists, the Continental Race 28 Supersonic S42 is an ultralight inner tube weighing just 50g. Its reduced wall thickness (down to 0.45mm) minimises rotating weight and rolling resistance, helping you go faster with less effort.

Specifications

• Size: 700c x 18–25mm (ETRTO: 18/25-622/630)
• Also fits: 27 x 3/4–1"
• Valve: 42mm Presta (Sclaverand / SV)
• Weight: 50g
• Wall thickness: Up to 0.45mm
• Colour: Black

Key Features

• Ultralight construction for reduced rotating mass and faster acceleration
• Low rolling resistance – ideal for racing and fast road riding
• 42mm Presta valve suits most road rims
• Note: thinner walls mean more frequent inflation checks and slightly higher puncture risk vs standard tubes

Perfect for road racers and performance cyclists who want every gram to count.