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Slime Smart Self-Healing Bike Inner Tube - Schrader Valve

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Make sure you’re always prepared for punctures with the Slime Smart Self-Healing Inner Tube. Pre-filled with a fast-acting and environmentally-friendly Slime sealant, this powerful tube seals punctures up to 3mm in size and prevents flat tyres for up to 2 years. 

The microfibers in Slime's patented formula are carried by the escaping air to the puncture, where they build up to form a plug that stops air loss and seals the puncture. 

Designed for Schrader valves, you can take on rough and ready runs with confidence, without letting punctures hold up your journey. And for those commuting, punctures will never disrupt your regular ride to work when you’ve got one of Slime’s super reliable tubes to hand. Altogether, this self-sealing tube keeps you riding for as long as possible with minimal fuss.


  • Instantly seals up to 1/8" (3mm) punctures
  • Provides flat tyre protection for up to 2 years
  • Pre-filled with environmentally-friendly Slime tube sealant
  • Valve type: Schrader
  • Size: 26” x 1.75

Please note: Although these Self-Healing Inner Tubes are a truly excellent product and will fix the vast majority of punctures, they are not guaranteed to fix all punctures all of the time.

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Shipping & Returns

Returns Policy
Changed your mind? No worries. You can return most new, unopened items within 30 days of purchase for a full refund. Please note we’ll only refund the return shipping costs if the return is a result of our error (eg. you received an incorrect or defective item).

We'll process your refund within 30 days. Once it's all done on our end, it's over to your bank. They'll usually take 3-5 working days to pop the funds back into your account.

If you need to return an item, you first need to get in touch with us so we can get the ball rolling. Head over to our Returns Policy to find out what to do.

All UK orders are processed within 1-3 working days and shipped for 2 days delivery. We’ll send you an email regarding the dispatch of your order and when we expect it to arrive. Orders aren’t shipped or delivered on Sundays or public holidays.

We currently don’t ship internationally. However if this is something you're particularly interested in, feel free to get in touch with us about it.

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.

You can find all of our UK shipping costs and delivery estimates on our Delivery Policy page.

Due to Covid-19 and increased online shopping, Royal Mail deliveries are taking 1-2 weeks, sometimes longer. Also if we’re experiencing a high volume of orders, shipments may be delayed by a few days. So please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we'll contact you via email or telephone.