21 Ultra Heavy Duty 4mm Inner Tube 3.00-21 TR4 Valve Borilli BRA21

Description

Borilli ultra heavy-duty motorcycle inner tube for 21-inch rims and 3.00-21 tyres, fitted with a straight TR4 valve. The 4 mm rubber construction is designed for demanding use, including off-road and long-distance riding.

Features

  • Ultra heavy-duty construction helps reduce punctures and pinch damage
  • Suitable for compatible 21-inch motorcycle applications
  • Well suited to off-road and long-distance riding
  • Designed as a replacement inner tube for 21-inch rims

Specifications

  • Compatible tyre size: 3.00-21
  • Alternative size notation: 21 x 3.00 / 21x300 / 300-21 / 3.00x21 / 21-300
  • Supplied size designation: 21x300
  • Rim diameter: 21 / 533 mm
  • Nominal tyre width: 3.00 / 76 mm
  • Valve type: TR4
  • Valve style: Straight
  • Valve angle: 0°
  • Tube thickness: 4 mm
  • Material: Rubber
  • Brand: Borilli

Cross-Reference OEM Part Numbers

  • BRA21

21 Ultra Heavy Duty 4mm Inner Tube 3.00-21 TR4 Valve Borilli BRA21

Product form

Borilli ultra heavy-duty motorcycle inner tube for 21-inch rims and 3.00-21 tyres, fitted with a straight TR4 valve. The 4... Read more

91 in stock 1-2 business days

£39.55 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 69-010.BOR

    • Free shipping on all orders above £75
    • No hassle returns within 30 days

    Description

    Borilli ultra heavy-duty motorcycle inner tube for 21-inch rims and 3.00-21 tyres, fitted with a straight TR4 valve. The 4 mm rubber construction is designed for demanding use, including off-road and long-distance riding.

    Features

    • Ultra heavy-duty construction helps reduce punctures and pinch damage
    • Suitable for compatible 21-inch motorcycle applications
    • Well suited to off-road and long-distance riding
    • Designed as a replacement inner tube for 21-inch rims

    Specifications

    • Compatible tyre size: 3.00-21
    • Alternative size notation: 21 x 3.00 / 21x300 / 300-21 / 3.00x21 / 21-300
    • Supplied size designation: 21x300
    • Rim diameter: 21 / 533 mm
    • Nominal tyre width: 3.00 / 76 mm
    • Valve type: TR4
    • Valve style: Straight
    • Valve angle: 0°
    • Tube thickness: 4 mm
    • Material: Rubber
    • Brand: Borilli

    Cross-Reference OEM Part Numbers

    • BRA21

    Shipping & Delivery

    How long will my item take to arrive?

    Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

    Where do you ship to?

    We currently only ship orders within the UK.

    How can I track my order?

    Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

    Can I collect my order?

    Unfortunately we do not offer order collections from our fulfilment centre.

    WHY NOT CHECK OUT

    Recently viewed products

      Sign up for our newsletter

      Subscribe to our Mailing List

      Never miss any news and be the first to know about sale and offers

      © 2026 Radhouse, Powered by Shopify

        • American Express
        • Apple Pay
        • Diners Club
        • Discover
        • Google Pay
        • Maestro
        • Mastercard
        • PayPal
        • Shop Pay
        • Union Pay
        • Visa