Bibike TPU road inner tubes 700x18-32c — 45/65/85mm Metal Presta valve, removable core, ultra-light 36g

Bibike TPU inner tubes are ultra-light, durable road bike tubes for 700x18–32c tires with metal Presta valves (45/65/85mm) and removable cores.

Built from thermoplastic polyurethane (TPU), these Bibike inner tubes trade traditional butyl rubber weight for a featherlight 36 g construction and improved puncture resistance for many road cycling setups. Metal Presta valves replace plastic stems for better sealing and corrosion resistance, and removable cores make pumping, tubeless conversions, and CO2 inflation simpler. Choose from 45mm, 65mm, or 85mm valve lengths to match deep rims, and follow the included inflation guidance to avoid overstretching the tube when unmounted.

How do these tubes improve my road bike performance?

Lower rotational weight helps acceleration and responsiveness, especially noticeable on climbs and sprints. The TPU material balances toughness and lightness so you get a lively ride without sacrificing durability compared with some ultra-thin alternatives.

• Weighs approximately 36 g for reduced rotational mass.
• TPU offers a resilient, flexible wall suitable for road conditions.
• Metal Presta valve improves air seal and resists corrosion.
• Removable valve core simplifies inflation and sealant use.

Will these tubes fit my tires and rims?

These inner tubes cover tires sized 700x18c through 700x32c, matching common road and gravel-adjacent widths. Pick the valve length that aligns with your rim depth to make inflation easier and avoid valve stress.

• Compatible with 700x18, 23, 25, 28, 32c tire sizes.
• Valve length options: 45 mm for shallow rims, 65 mm for medium, 85 mm for deep-section rims.
• Removable core supports both pump and CO2 inflator use.

Are there special handling or inflation steps I should follow?

TPU behaves differently when unmounted; avoid overinflating the tube outside the tire. Start with a low pressure during installation so the tube seats against the tire wall, then finish to your normal riding pressure once the tire is mounted.

• Initial installation: inflate to about 0.5 PSI to help seat the tube inside the tire.
• Do not exceed 5 PSI when the tube is not installed to prevent irreversible overstretching.
• After mounting, inflate to your usual riding pressure appropriate for tire width and rider weight.

How does the metal Presta valve with removable core help me on the road?

Metal valves are stiffer and seal better than plastic stems, reducing the chance of leaks and valve damage. The removable core lets you attach sealant, use CO2 cartridges, or thread a pump adaptor without removing the valve stem from the rim.

• Metal stem offers better airtightness and durability than plastic stems.
• Removable core enables fast CO2 inflation and sealant introduction.
• Available in three lengths to suit shallow and deep rims alike.

Who is this for: These Bibike TPU inner tubes suit road cyclists who want to cut weight and improve ride feel without sacrificing practicality. They are ideal for racers, weekend riders, and cyclists fitting deep-section wheels who need longer valve lengths. If you frequently use CO2 inflators, tubeless setups requiring removable cores, or simply want a lighter spare tube to carry on long rides, these tubes provide a performance-minded option. Riders who prefer maximum puncture protection from thicker butyl, or who want to inflate tubes to high pressures while unmounted, may prefer conventional tubes instead.