• Chaoyang Inner Tube 20 x 4.0/4.9 – inflated tube, front view
  • Chaoyang Inner Tube 20 x 4.0/4.9 – inflated tube with dimensions and weight
  • Chaoyang Inner Tube 20 x 4.0/4.9 – inflated tube, angled view
  • Chaoyang Inner Tube 20 x 4.0/4.9 – inflated tube, top view
  • Chaoyang Inner Tube 20 x 4.0/4.9 – inflated tube, slightly angled view
  • Chaoyang Inner Tube 20 x 4.0/4.9 – front three-quarter view

Chaoyang Inner Tube 20 x 4.0/4.9 for Engwe EP-2 Pro Electric Bicycle

Store information
Viewing / collection in person is possible Monday to Saturday.
Opening hours: Mon–Fri: 9:00–19:00
Sat: 10:00–16:00
Sun & public holidays: CLOSED
Address: Tržaška cesta 222, 1000 Ljubljana
Phone: +386 30 771 787
Email: [email protected]
19,90 EUR
19,90 EUR
Calculating shipping cost…

Shipping price may change by country.

Estimated delivery · Denmark

Contact us to confirm delivery to Denmark.
  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • iDEAL Wero
  • Klarna
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Chaoyang Inner Tube 20 x 4.0/4.9 for Engwe EP-2 Pro Electric Bicycle

This Chaoyang inner tube is specifically designed for electric bicycles, offering a direct replacement for the Engwe EP-2 Pro model. It is sized for 20-inch wheels and is compatible with tyres ranging from 4.0 to 4.9 inches in width.

Key Features and Compatibility

  • Exact Fit: Designed as a suitable replacement for the Engwe EP-2 Pro electric bicycle.
  • Dimensions: This inner tube measures 20 inches in diameter and is compatible with tyre widths between 4.0 and 4.9 inches. The outer diameter is approximately 550mm, with an inner diameter of about 400mm.
  • Valve Type: Features a Schrader valve (also known as an American valve), which is 32mm in length.
  • Material: Constructed from rubber material.
  • Weight: The net weight of the inner tube is approximately 0.38 kg.

Choosing the Correct Inner Tube

To ensure correct fitment, always verify the dimensions marked on the sidewall of your existing tyre. While this inner tube is specified for 20 x 4.0/4.9 tyres, checking your tyre's exact markings is crucial. Also, confirm that your wheel rim is designed for a Schrader valve and that the valve hole accommodates the 32mm valve length.

Installation and Safety Guidance

When installing the inner tube, ensure the tyre is fully deflated. Carefully insert the valve through the rim hole and secure it with the nut. Partially inflate the tube to give it shape before seating the tyre beads evenly on the rim. Before full inflation, check for any pinching of the inner tube between the tyre bead and the rim. Inflate to the pressure recommended by your tyre manufacturer, typically found on the tyre sidewall. After installation, inspect both sides of the tyre to confirm it is properly seated on the rim.

Spare parts for ENGWE

All ENGWE spare parts

EVOLT showroom and service entrances

Why choose EVOLT?

Tržaška cesta 222, 1000 Ljubljana, Slovenia

Visit our 200 m² showroom in Vič, Ljubljana, where sales, servicing and spare parts come together under one roof.

See and try products in person, with expert advice, servicing in Slovenia and spare-parts support after your purchase.

MON–FRI: 9:00–19:00
SAT: 10:00–16:00

Spare parts in the EVOLT showroom

Spare parts and accessories

In stock in Ljubljana

EVOLT supplies spare parts for electric scooters, electric bikes and other electric vehicles.

Explore components stocked in Slovenia, with delivery estimates based on the product and destination.

We support riders, repair centres, retailers and business partners through retail and wholesale supply.

Blog posts

Stay up to date with the latest in electric micromobility.

More questions about Chaoyang Inner Tube 20 x 4.0/4.9 for Engwe EP-2 Pro Electric Bicycle?

Get in touch