Hromra 21-inch inner tube pack-shot shows compatibility for 21-inch dirt bike tires and easy replacement.
Hromra thick-wall inner-tube close-up highlights durable butyl construction for reliable mounting.
Hromra inner-tube butyl-rubber material close-up demonstrates elasticity and heat resistance.
Hromra air-retention feature demonstration image shows extended pressure maintenance.
Hromra 21-inch inner tube inflation test image emphasizes strong grip and shock absorption.
Hromra 2-pack label view shows included duo for quick back-up replacements.
Hromra 21-inch inner tube pack-shot shows compatibility for 21-inch dirt bike tires and easy replacement.
Hromra thick-wall inner-tube close-up highlights durable butyl construction for reliable mounting.
Hromra inner-tube butyl-rubber material close-up demonstrates elasticity and heat resistance.
Hromra air-retention feature demonstration image shows extended pressure maintenance.
Hromra 21-inch inner tube inflation test image emphasizes strong grip and shock absorption.
Hromra 2-pack label view shows included duo for quick back-up replacements.

Hromra 21-Inch Inner Tube (2-Pack) – 2.75/3.00-21 Heavy-Duty Fit for Dirt & Pit Bikes

Overview The Hromra 21 inch heavy replacement inner tube is designed for dirt bikes and pit bikes...
Vendor: Hromra
Availability: In stock
£44.02
£44.02
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Hromra 21-inch inner tube pack-shot shows compatibility for 21-inch dirt bike tires and easy replacement.

Hromra 21-Inch Inner Tube (2-Pack) – 2.75/3.00-21 Heavy-Duty Fit for Dirt & Pit Bikes

£44.02
Hromra 21-inch inner tube pack-shot shows compatibility for 21-inch dirt bike tires and easy replacement.
Hromra thick-wall inner-tube close-up highlights durable butyl construction for reliable mounting.
Hromra inner-tube butyl-rubber material close-up demonstrates elasticity and heat resistance.
Hromra air-retention feature demonstration image shows extended pressure maintenance.
Hromra 21-inch inner tube inflation test image emphasizes strong grip and shock absorption.
Hromra 2-pack label view shows included duo for quick back-up replacements.

Hromra 21-Inch Inner Tube (2-Pack) – 2.75/3.00-21 Heavy-Duty Fit for Dirt & Pit Bikes

£44.02
Description
Description
x

Overview

The Hromra 21 inch heavy replacement inner tube is designed for dirt bikes and pit bikes that run 21 inch tires. This 2 pack supports sizes 2.75/3.00-21 and is compatible with 80/100-21 and 300/325-21, offering a flexible option for riders seeking consistent performance across diverse trails and tracks.

Key benefits and materials

These inner tubes feature a thickened wall crafted from premium butyl rubber. The combination of strength and flexibility helps the tube hold its shape under pressure while absorbing vibrations for a smoother ride on rough surfaces.

  • Thickened inner tubes for enhanced durability without sacrificing flexibility
  • Premium butyl rubber for reliable air retention and reduced leakage
  • Good elasticity and heat resistance for long lasting performance

Air retention is a key consideration for riders who want steadier tire pressure over time. The butyl rubber helps minimize gradual loss, supporting stable grip and predictable handling. The material also offers wear resistance and strong traction on a variety of terrain.

Real life use scenarios

Riders notice fewer interruptions from flats when navigating rocky trails or sandy pits. The tube provides a dependable core that supports steady pressure and responsive steering during long days on the track or in backcountry areas.

  • Potential to sustain performance through back-to-back sessions on dirt tracks
  • Supportive behavior for trail riding where grip and control matter

Package includes 2 inner tubes. If you receive a unit with bubbles during a water test, this may indicate transit damage and we will reship. Before ordering, verify the tire size to ensure compatibility with your wheel setup.

Care and installation tips

Inspect the tube for visible defects before installation. Inflate within the tire manufacturer range and check the bead seat fit to ensure a proper seal for reliable performance.

FAQ

Q: What sizes does this inner tube fit?

A: Fits 2.75/3.00-21 tires, including 80/100-21 and 300/325-21 sizes.

Q: What comes in the package and how can I test for leaks?

A: Includes 2 inner tubes. To test, soak in water; bubbles indicate a leak, and we will reship.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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