X-TIGER Ultralight TPU Bike Inner Tube 700C 18-32C Presta Valve

X-TIGER Ultralight TPU Bicycle Inner Tube — 700C | 18-32C | 45/65/85mm Presta Valve

Upgrade your ride with the X-TIGER Ultralight TPU Bike Inner Tube — engineered for road and MTB cyclists who demand every gram counts. Weighing just 28g, this next-generation inner tube is crafted from premium Thermoplastic Polyurethane (TPU), delivering an exceptional balance of flexibility, toughness, and puncture resistance that traditional butyl tubes simply can't match.

Made in Mainland China.

Key Features

• Ultralight at Only 28g: Dramatically reduces rotational weight, helping you accelerate faster and maintain speed with less effort — ideal for competitive road cycling and spirited trail riding.
• Premium TPU Material: Special-grade TPU offers superior elasticity, outstanding toughness, and excellent resistance to punctures and abrasion compared to standard rubber tubes.
• Versatile Fitment — Road & MTB: Compatible with 700C wheels and tire widths from 18C to 32C (18, 23, 25, 28, 30, 32C), making this tube a perfect match for road bikes, gravel bikes, and hybrid MTB setups.
• Presta (French) Valve — 3 Length Options: Choose from 45mm, 65mm, or 85mm detachable valve lengths to suit both shallow and deep-section rims. Compatible with rim brakes and disc brakes alike.
• Compact & Easy to Carry: The small packed size means this tube doubles as a perfect spare to stash in your jersey pocket or saddle bag on every ride.
• Cost-Effective Performance: Get race-ready tube technology without the boutique price tag.

Specifications

⚠️ Important Usage & Safety Guidelines

• Do not over-inflate when the tube is not seated inside a tyre — this can cause irreversible damage.
• Use a manual pump only. Do NOT use air compressors or high-speed inflation equipment.
• Before inflating, turn the valve inward (toward the centre of the wheel). Inflate gently until the tube is round — keep pressure below 0.5 bar / 8 PSI before fully seating the tyre.
• Maximum inflation pressure: 5 bar / 72 PSI on ISO-compliant no-ring-lip rims.
• Temperature affects pressure: every 3°C (5°F) rise increases pressure ~1%. On hot days or hot black asphalt (above 65°C / 150°F), monitor pressure closely — excessive pressure can cause tyre separation from the rim.
• If storing your bike where temperatures may reach 60°C / 140°F (e.g., a hot car), deflate to 1 bar / 15 PSI to prevent valve deformation.

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For more information on bicycle safety standards and equipment, visit the U.S. Consumer Product Safety Commission — Bike Safety Resource Centre.

Learn more: Bicycle frame

Frequently Asked Questions

Q: What tire sizes is the X-TIGER TPU inner tube compatible with?

A: The X-TIGER ultralight TPU inner tube is designed for 700C wheels with tire widths from 18C to 32C (including 18, 23, 25, 28, 30, and 32C). It suits road bikes, gravel bikes, and light hybrid setups using standard 700C rims.

Q: What valve length should I choose — 45mm, 65mm, or 85mm?

A: Choose based on your rim depth. 45mm works for standard shallow rims (common on most road and commuter bikes). 65mm suits mid-depth aero rims. 85mm is ideal for deep-section carbon or aero rims where a shorter valve wouldn't reach the pump head. All three lengths feature a detachable valve core and are compatible with both rim brake and disc brake wheels.

Q: Why is TPU better than a standard butyl rubber inner tube?

A: TPU (Thermoplastic Polyurethane) is significantly lighter — the X-TIGER tube weighs just 28g, compared to 80–120g for typical butyl tubes. TPU also offers superior elasticity, better puncture resistance, and packs down to a smaller size for easy carrying as a spare. These properties make it a popular choice among performance road cyclists and weight-conscious riders.

Q: Can I use an air compressor to inflate this inner tube?

A: No. Always use a manual hand pump or floor pump. High-speed inflation equipment such as air compressors or gas station pumps can rapidly over-pressurize the tube and cause irreversible damage. The maximum recommended pressure is 5 bar / 72 PSI when fully installed in the tyre.

Q: Is this tube suitable for use with deep-section carbon aero rims?

A: Yes — the 65mm and 85mm valve length options are specifically designed for mid-to-deep-section rims, ensuring the valve protrudes sufficiently for easy pump attachment. The detachable valve core also allows use with valve extenders if needed.