Schwalbe SV21 27.5" Aerothan MTB Inner Tube

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  • 40mm Valve
  • Offers a stable ride even at low air pressures
  • Minimal rolling resistance maximum driving dynamics
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The Schwalbe SV21 27.5" Aerothan MTB Inner Tube enhances mountain biking with its advanced construction. It utilises Aerothan technology, providing a tube that's not only lightweight but also remarkably resistant to punctures, aiding in consistent performance across varied terrains.

Explore the essential features of this inner tube:

  • Material Integrity: Aerothan, a thermoplastic polyurethane material, ensures exceptional puncture resistance and durability, allowing you to tackle tough trails without the fear of common tyre injuries like snake bites and sidewall damage.
  • Weight and Performance: Approximately 40% lighter than Schwalbe's Extralight butyl tubes, this tube significantly reduces rolling resistance, which in turn enhances your riding dynamics and speed on the trails.
  • Stability at Low Pressures: Designed to maintain its shape and performance even at lower air pressures, it offers a stable and controlled ride, making it ideal for rough and uneven terrains.
  • Easy Mounting: The tube’s construction prevents slipping and jamming during installation, ensuring a straightforward setup that gets you back on the trail faster.
  • Environmental Impact: Fully recyclable, including the valve, the Aerothan tube aligns with environmental sustainability practices. Schwalbe also offers a free recycling program for used tubes.
  • Heat Resistance: The tube withstands extreme temperatures, maintaining its integrity and performance during heated rides, ensuring reliability in all conditions.

This inner tube is a smart upgrade for your mountain bike setup. With its innovative design aimed at reducing weight and enhancing durability, it offers a more enjoyable and efficient riding experience. The Schwalbe SV21 27.5" Aerothan MTB Inner Tube proves itself as a reliable choice for riders looking to optimise performance while contributing to environmental sustainability.



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Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.

Finance Options

In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.

D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance and Klarna. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.

Delivery & Returns

UK Mainland Delivery Prices

Delivery Type Cost Estimated Delivery Time
Standard Delivery for orders under £49.99 from £1.33 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)
Standard Delivery for orders over £49.99 Free
Express Delivery from £1.68 1-2 working days from day of despatch(Excludes weekends and Bank Holidays)
Special Delivery from £12.54 For any next working day delivery order before 4pm Monday to Thursday.
For any weekend delivery order before 4pm Friday
Click & Collect from £7.62 Collect your parcel from a local post office. 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)

For international shipping please visit our delivery page.

For information about returning an item please visit our returns page.