Continental GP4000S II 23mm Tyres with Race 28 Inner Tubes 700X20/25 42MM
Continental are one of the pro peloton's favourite tyre suppliers and the combination of the GP4000S II 23mm Tyres with Race 28 Inner Tubes 700X20/25 42MM would make even the most hardened pros envious. Top-level clincher performance with a durable super-puncture resistant compound means you likely wouldn't want anything else for the road ahead.
Following on from the much loved Grand Prix 4000S’ trustworthy design, using Continental’s renowned BlackChilli compound, mixing immense grip, with a mixture of synthetic and natural rubber to create a tyre you can literally clock up thousands of problem-free kilometres on.
So whether you’re battering through those dark, wet, cold winter miles or sprinting for the win in your local road race, this tyre will help you achieve your goals. The last thing you want in a tyre is unreliability and with the Grand Prix 4000S II you will have no problems there.
Vectran breaker technology keeps punctures at bay and the unique compound keeps you rubber side down for immense wet weather grip, whilst providing a lively and direct ride.
In the 23 mm guise this tyre is the ideal finishing touch to really make your bike stand out from the crowd.
These super tyres combine perfectly with Continental's premium Race 28 Inner Tubes 700X20/25 42MM. Utilising the German manufacturer's Supersonic technology, these tubes are not only resistant to punctures, but also provide smooth rolling and a minimised weight penalty.
Includes: 2 x Continental GP4000S II 23 clincher tyres and 2 x Continental Race 28 700 x 20/25 Inner Tubes with 42mm long Presta valves.
- Clincher tyre
- Bead: folding
- Weight (23C black/black version): 205g
- Recommended inflation pressure (23C version): 110-120psi
- Maximum inflation pressure (23C version): 120psi
- BlackChilli compound, providing low rolling resistance, immense puncture protection and high levels of wet weather grip
- Vectran breaker technology. A mixture of fibres and hi-tech liquid polymer yarn claimed to be stronger than steel, to deliver bulletproof puncture resistance
- 20-25 millimetre tyre compatible inner tubes
- 42-millimetre valve length
- Supersonic technology provides low rolling resistance
PRODUCT REF: 4000SII-23MM-BOM
UK Delivery Options
Free Delivery on all orders over £30
Estimated delivery within 4 working days (a delivery charge of £1.99 for orders under £30.00 will apply)
CollectPlus Delivery - £1.99
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 SigmaSport.co.uk website where they will be held awaiting collection for a period of 10 days.
Orders placed are normally dispatched within 2 working days.
Priority 1st Class Delivery - £2.99
Estimated delivery within 2 working days. For Highlands and Islands, please allow up to 5 working days.
Next Working Day Delivery* - £4.99
A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.
Saturday pre 12 Delivery - £4.99
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 pre 12 Delivery - £4.99
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 and Collect** - FREE
Reserve & Collect is available on all items marked 'Collection'. It is a FREE delivery option that allows you to collect your order from either our Sigma Sport Store, Hampton Wick or our Reserve & Collect location in Esher. Just select the Reserve & Collect button in the basket.
* 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: 4 days if in stock at the store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.
London Same Day (Order Before 1pm)
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 7 - 10 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.
International Delivery and Returns
We ship to over 100 countries using DHL for a fast and reliable delivery. To see the delivery cost, please add your items to the basket and proceed to the checkout.
International customers have 30 days from their order date to return the order. Goods must be returned in new condition with all original packaging intact and tags attached.
For full details, see this link.
Free UK Returns
We offer a free returns service for our UK customers. Sigma Sport will happily refund or exchange any item purchased at Sigma Sport, excluding Sigma Sport gift vouchers and personalised products except when faulty.
More information on the Sigma Sport returns procedure.