Libereco Inner Tube 70/100-14 (2.25/2.5-14) 14" TR4 Valve Butyl Rubber 2-Pack for 50–160cc scooters & dirt bikes

Libereco 2.25/2.5-14 (70/100-14) inner tube — a two-pack of TR4-valve butyl tubes made to replace or upgrade 14" wheels on 50cc–160cc scooters, dirt bikes and pit bikes.

This pair of inner tubes is engineered for small-displacement motorcycles and scooters that use 14-inch wheels. Constructed from butyl rubber for excellent air retention and fitted with a TR4 straight valve stem designed for motorcycle rims, these tubes aim to keep your tires at stable pressure and reduce slow leaks. The 70/100-14 sizing fits common 14" tire profiles (2.25/2.5), making it a practical spare or replacement for riders who want dependable, long-lasting tubes.

How will these inner tubes hold air over time?

Butyl rubber is selected for low permeability to air, so these tubes hold pressure much longer than natural rubber alternatives. With proper installation and no punctures, they substantially reduce the need for frequent top-ups.

• Butyl construction minimizes slow leaks and maintains inflation for months.
• TR4 valve stem compatible with standard motorcycle pumps and inflators.
• Factory-tested for bead sealing and consistent wall thickness.

Are these tubes compatible with my scooter or dirt bike?

The Libereco 70/100-14 tube is meant for rims labeled 14 inches and tires with the 2.25 or 2.5 width profile. It supports a wide range of small motorcycles, scooters, mini bikes and pit bikes from about 50cc up to 160cc, but you should confirm tire markings before ordering.

• Fits tires marked 70/100-14 or 2.25/2.5-14 on the sidewall.
• Designed for 14" rims commonly used on scooters and small dirt bikes.
• Works with many 50cc–160cc models; check manufacturer specs for exact fit.

What makes the TR4 valve stem useful for motorcycle wheels?

TR4 is a straight, reinforced valve stem commonly used on motorcycle inner tubes and rims. Its form factor makes it easy to access for inflating, and it's robust enough to withstand vibration and road impacts typical of two-wheeled riding.

• Straight valve for quick pump access and secure seal with valve caps.
• Sturdy base that resists bending and reduces air leaks at the stem joint.
• Compatible with standard tire pumps, compressors, and pressure gauges.

How should I install and maintain these tubes?

Careful installation and routine inspection extend tube life. Use proper tire levers, avoid pinching the tube, and seat the tire bead evenly. After mounting, inflate to the vehicle manufacturer’s recommended pressure and check for slow leaks.

• Lubricate bead with soapy water for easier seating and fewer pinches.
• Inflate gradually and check rim-to-tire alignment before full inflation.
• Inspect for punctures, rim tape condition, and spoke ends before reuse.

Who is this for? Riders who need reliable replacement inner tubes for small motorcycles, scooters, and pit or dirt bikes will find this Libereco 2-pack useful. It’s especially good for mechanics, enthusiasts who carry spares on rides, and owners of older or budget bikes that use standard 14" tubes. Check your tire sidewall for the 70/100-14 or 2.25/2.5-14 marking and confirm compatibility with 50cc–160cc applications before purchasing.