Continental R28 700C X 20 - 25C 80mm Presta Valve Inner Tube

Estimated delivery within 4 working days. A delivery charge of £1.99 will apply for baskets under £30.00.

Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK CollectPlus locations specified on the SigmaSports.com website where they will be held awaiting collection for a period of 10 days.

Orders placed are normally dispatched within 2 working days.

Estimated delivery within 2 working days. For Highlands and Islands, please allow up to 5 working days.

A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.

Saturday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.

Sunday delivery orders must be placed by 1pm Friday and are only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.

Reserve & Collect from either our Sigma Sports store in Hampton Wick or our Collection Point in Esher. Just select the Reserve & Collect button in the basket. Please note that bikes orders will require a 10% deposit before we build your bike. We will contact you for payment after you've placed your order.

* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre-order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.

** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 72 hours if in stock at our store, collect in up to 7 days (sometimes quicker) if in stock at our warehouse. Please note that bikes orders will require a 10% deposit before we build your bike. We will contact you for payment after you've placed your order.

We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.

More information on our Same Day delivery options.

All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 4 - 5 working days.

Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.

More information on all our UK delivery options.

We offer free 90-day returns and exchanges for UK customers. Sigma Sports will happily refund or exchange any item purchased at Sigma Sports.

More information on the Sigma Sports returns procedure.

We use DHL for fast and reliable delivery to Europe. This is a fully tracked service and a signature will be required. For most European countries we now offer free delivery with a minimum spend, see the table below.

We ship to a wide range of countries, outside of Europe using DHL.  This is a fully tracked service and a signature will be required. Please add your items to the basket and proceed to the checkout where we will display the delivery cost.