Continental Contact Reflex 20 inch Tyre



Please note: View 'Tyres Guide' below for ETRTO Sizing
- ShowProduct Information Key Features:The Contact is the jack of all trades amongst city and trekking tyresIts tread design i... read more
- Show Reviews & Q&As
- Show Tyre Size Guide
- Show Folding Bike Tyre Guide
- Show Delivery & Guarantee
Product Description
- The Contact is the jack of all trades amongst city and trekking tyres
- Its tread design is based upon the principles of bionics
- A SafetySystem Breaker provides ample puncture protection
- A uniform centre tread belt ensures a smooth and speedy ride on the road
- Flexible shoulder lugs and fine sipes guarantee grip in curves and loose surfaces
- The ultra fine carcass fabric reduces the rolling resistance while providing a noticeably more comfortable ride
- Reflective Sidewall
- Constructed from 3 plies, totalling 180 TPI
- Weight: 720 grams
Occasionally, without notice, manufacturers change product design and/or specifications.
Reviews and Q&As disabled
Customer reviews and Q&As are disabled because you declined functional cookies.
To enable reviews and Q&As click the 'Cookie Settings' button below and enable functional cookies.
Tyre Size Guide
Tyre Size Guide
Whether you are replacing a worn out tyre or want a performance upgrade, it is essential that you choose a tyre that is compatible with your bicycle as well as your riding style.
To find out which size tyre you will need have a look at the sizing information on your existing tyre. You can find this information on the side wall of the tyres, either in coloured print or embossed in the rubber itself. Both rim diameter and tyre width are shown in the size info.
Road bike tyre sizing

700 x 23c
A standard 700c road bike rim with a 23mm tyre width.
MTB tyre sizing

27.5 x 2.3
A 27.5” mountain bike rim with a 2.3” tyre width.
You will notice that road bike tyres tend to me measured in metric units while mountain bike tyres use imperial units.
What Size Tyre Do I Need?
Ypu need to knnow your wheel size and tyre width when chosing a replacement tyre for your bike

Wheel Size
Tyres are made to fit specific wheel sizes, so you need to know what size the wheel on your bike is.
The easiest way to do this is by looking at the tyres on your bike. On the sidewall you'll see a combination of digits such as:
700 x 28c (road bike wheel) or 27.5 x 2.4 (mountain bike wheel)
It’s the first figure that shows the diameter of the wheel or the wheel size.
The next figure is tyre width which is the other measurement you need to know.

Tyre Width
Inner tubes are designed to fit a range of tyre widths, so the next thing you need to know is the width of your tyre.
This is shown in the second number that’s printed on the side of the tyre.
700 x 28c (road bike wheel) or 27.5 x 2.4 (mountain bike wheel)
When choosing an inner tube you need one with a width range that covers your tyre width as well as exactly matching the size of the wheel. See the tables below for examples.
Note: Sometimes metric sizes are shown as c instead of mm. This is just a different way of saying the same thing. A 25c tyre is the same width as a 25mm tyre.
Traditional and ETRTO sizing
Sometimes the sizing info is listed in two different ways; the traditional sizing method shown above and ETRTO sizing which lists the tyre width first and the rim diameter second. The rim diameter size is measured differently with ETRTO, for example:
23-622
This is a standard 700c road bike rim with a 23mm tyre width, which is the same size as 700 x 23c.
We recommend that you use the traditional sizing method wherever possible as most tyres that we stock use this system.

Traditional and ETRTO tyre size tables
If you are unsure which tyre size you need you can use our handy comparison table to find the correct size tyre
Road bike tyre sizes
ETRTO Number | Dimension |
700c road bike wheels | |
18-622 | 700 x 18C |
23-622 | 700 x 23C |
25-622 | 700 x 25C |
28-622 | 700 x 28C |
32-622 | 700 x 32C |
37-622 | 700 x 35C |
47-622 | 700 x 47C |
MTB tyre sizes
ETRTO Number | Dimension |
26" mountain bike wheels | |
50-559 | 26 x 1.9 |
54-559 | 26 x 2.1 |
55-559 | 26 x 2.2 |
58-559 | 26 x 2.35 |
27.5" (650b) mountain bike wheels | |
50-584 | 27.5 x 1.95 |
54-584 | 27.5 x 2.1 |
57-584 | 27.5 x 2.25 |
29" mountain bike wheels | |
50-622 | 29 x 2.0 |
54-622 | 29 x 2.1 |
55-622 | 29 x 2.2 |
What are the different types of bike tyres
While road, mountain and hybrid tyres have their own specific differences there are some features that are common to all tyres.
- Clincher tyres - most bike tyres have a bead which hooks onto the rim to keep the tyre in place. Traditionally this bead is made from wire which is tough but heavy. Premium tyres use a folding Kevlar bead which is equally as strong as wire but is much lighter weight.
- Tubeless tyres - while regular clincher tyres require an inner tube to keep them inflated tubeless or tubeless ready tyres form an airtight seal with a compatible rim so you don’t need an inner tube. These are most commonly found on mountain bikes as they can be run at lower pressures without risking punctures.
- Tubular tyres - These are specialist road bike tyres that have the tube built into the tyre and are then glued onto a compatible rim.
Frequently Asked Questions
What size tyre do I need for my bike?
Look at the side wall of your tyre for any printed numbers indicating the size and width.
How do I know my bike wheel size?
The easiest way is to look at the side of your tyre. The size and width are printed on the tyre.
How do I choose a bike tyre?
Once the compatible size is known, choose an appropriate tread for the conditions you ride in.
Can I fit wider Tyres on my bike?
Look at your fork and frame where the tyre passes through, measure any available clearance to gauge what width tyre will fit.
Is a 28 inch tire the same as 700c?
700c wheels have a diameter of 622mm. While most 28 inch tyres are for a 622mm wheel, some are not. Check the ETRO number on the sidewall to confirm.
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
Folding Bike Tyre Guide
Folding Bike Tyre Guide
Folding bike tyres are tyres that are designed specifically to fit the wheels of folding bikes. Most folding bikes have smaller wheels than urban road and hybrid bikes, so we’ve placed them all in a category of their own. If you can’t find the exact same tyre as you have on your bike, then another tyre of the same size will be fine.
Please note: the term ‘folding tyre’ refers to the bead of the tyre rather than the type of bike that the tyre is to be fitted to. Both ‘wired’ and ‘folding’ bead tyres are suitable for folding bikes as long as they are the right size.
What size tyre do I need for my folding bike?
You will need a tyre that is the same size as the wheel on your folding bike. If you aren’t sure what size you need have a look at the side walls of your existing tyre, the size will be written there.
Brompton folding bikes all have 16” wheels with a 349 ETRTO number. Tern folding bikes have 20” wheels or larger.
See the table opposite for typical folding bike tyre sizes
ETRTO Number |
Tyre Dimension |
32 - 349 |
16 x 1 ¼ |
35 - 349 |
16 x 1.35 |
32 - 355 |
18 x 1.25 |
40 - 406 |
20 x 1.5 |
Can I fit a different size tyre to my folding bike?
You can fit a tyre with a different width as long as the diameter of the tyre is the same. A slightly narrower tyre of the same diameter will fit perfectly. You will need to make sure that you have enough clearance in the frame if the tyre is wider than your existing tyre.
For example: if you have a 16 x 1 1/4 (32–349) tyre fitted then a 16 x 1.35 (35–349) will fit as long as you have a little bit of extra clearance between the tyre and the frame as this tyre is about 3mm wider.

Delivery & Guarantee
UK Delivery Information
International Deliveries – Temporarily Suspended 11/11/20
Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey.
Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.
Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.
Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.
Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.
- bt1
-
Accessories
- A - Z Accessories
- Bags
- Bells & Horns
- Bicycle Storage
- Bike Racks
- Books & DVD's
- Bottles & Cages
- Cameras
- Car Racks
- Childseats
-
Bikes
- Shop By Price
- £0 - £250
- £250 - £500
- £500 - £1000
- £1,000 - £2,000
- £2,000 - £5,000
- £5,000+
- Shop By Year
- 2022 Bikes
- 2021 Bikes
- 2020 Bikes
-
Electric Bikes
- Shop By Type
- Electric Mountain Bikes
- Electric Urban Bikes
- Electric Road Bikes
- Electric Folding Bikes
- Electric Cargo Bikes
- Shop By Year
- 2022 Bikes
- 2021 Bikes
- 2020 Bikes
- Shop By Brand
- Specialized
- Haibike
- Cube
- Giant
- Boardman
- Orbea
- Brompton
- Merida
- Shop all brands...
- Shop By Motor Brand
- Bosch
- Shimano
- Ebikemotion
- Brose / Specialized
- Yamaha / Giant
- Fazua
- Other
-
Clothing
- Shop By Brand
- Altura
- Castelli
- Cube
- Endura
- Fox Clothing
- Giant
- Shimano
- Shop all brands...
-
Parts & Components
- A - Z Components
- Bearings
- BMX Parts
- Bottom Brackets
- Brakes
- Cables
- Cassettes
- Chainguides
- Chainrings
- Chains
- Cranks & Chainsets
-
Helmets & Safety
- High-Vis & Reflectives
- Reflective Tyres
- Accessories
- Clothing
- Bags
- Shop all reflectives...
- Safety
- Bells & Horns
- Mirrors
- Eyes & Face Protection
- Goggles
- Cycling Glasses
-
Tech
- Computers
- Wired Computers
- Wireless Computers
- GPS Computers
- Turbo Trainers
- Turbo Trainers
- Rollers
- Turbo Trainer Accessories
- Shop all turbo trainers...
- Electric Bikes
- Electric Mountain Bikes
- Electric Urban Bikes
- Electric Road Bikes
- Wearable Tech
- Activity Monitors
- Power Meters
- Cranks & Chainsets
- Pedals
- Wheel Hubs
- Components
- Shimano Di2 Components
- SRAM Etap Groupsets
- Turbo Trainers
-
Help & Advice
- Contact Us
- Contact Us
- My Account
- Track Your Order
- Delivery & Returns
- Delivery Info
- Returns
- Useful Info
- Bike Finance
- Shops
- Covid-19 Update
- Tredz Ambassadors
- View all
- Buyers Guides
- Bike Guides
- Clothing Guides
- Accessory Guides
- Components Guides
- Lifestyle Guides
- Seasonal Cycling
- Brands
- View all guides
- How To Guides
- Bike Adjustment Guides
- Bike Maintenance Guides
- View all guides...
-
Cycle to Work
- Cycle to Work
- Cycle to Work Scheme
- Get your Online Quote
- Commute by Bike Hub
- Clearance
- Help
- Contact Us
- My Account
- Buying Guides & Reviews
- Size Guides
- Bike Glossary
- Product Recalls
- Sitemap
- Our Shops
- Tredz Cardiff
- Tredz Swansea
- Giant Swansea
- Services
- Bike Finance
- Cycle to Work Scheme
- Shopping
- Student Discount
- Price Match
- Gift Vouchers
- Voucher Codes
- Secure Shopping
- Privacy
- Cookies
- Terms & Conditions
- About Us
- About Tredz
- Careers
© Performance Cycling Limited 2022. Tredz is a trading name of Performance Cycling Limited. All Rights Reserved Company No. 03398601 | VAT No: 484 5446 17
† IMPORTANT INFORMATION: Tredz & Tredz Bikes are trading names for Performance Cycling Limited. Performance Cycling Limited trading as Tredz acts as a credit broker and offers credit products from Clydesdale Financial Services Limited trading as Barclays Partner Finance and PayPal (Europe) trading as PayPal Credit. Performance Cycling Limited trading as Tredz is registered in England and Wales 03398601. Registered office: Icknield Street Drive, Washford West, Redditch, Worcestershire, England, B98 0DE. Performance Cycling Limited trading as Tredz is authorised and regulated by the Financial Conduct Authority. Our registration number is 720557. Credit provided subject to age and status.
† Barclays Representative Example: If total purchase price is £1,399.00 and your selected term is 36 months 11.9% APR Representative, Annual Interest Rate 11.9% Fixed, you would pay £46.00 per month. Total amount payable will be £1655.83 with a cost of credit of £256.83. Finance is subject to application, financial circumstances and borrowing history. Performance Cycling Limited acts as a credit broker and not the lender, Barclays Partner Finance acts as the lender. Barclays Partner Finance is a trading name of Clydesdale Financial Services Limited, a member of the Barclays group. Clydesdale Financial Services Limited is authorised and regulated by the Financial Conduct Authority (Financial Services Register number: 311753). Registered in England. Registered No: 2901725. Registered Office: 1 Churchill Place, London E14 5HP.
PayPal Credit is subject to status. Terms and Conditions apply. Performance Cycling Limited acts as a broker and offers credit from PayPal Credit. PayPal Credit is trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. Société en Commandite par Actions Registered Office: 22-24 Boulevard Royal L-2449, Luxembourg. † Full Representative Example: Representative 21.9% APR (variable), Purchase interest rate 21.9% p.a. (variable), Assumed credit limit £1,200.00.