Continental Contact Urban Reflex Wire Bead Puregrip 27.5" Tyre
Introducing CONTACT Urban
The CONTACT Urban is our first urban tyre to feature in a size for Brompton bicycles!
The tyre is of course compatible with E.Bikes and helps improve battery life.
The new SafetyPro breaker designed from Nylon textile.Cross-woven textile fibre netting that is simultaneously robust and flexible. Maximum puncture protection with minimal added weight. The risks of punctures resulting from glass or sharp stones are lowered.SafetyPro sits above the lightweight SafetySystem (level 4) and rubber EXTRA puncture belt (level 5) in the Continental safety (puncture protection grading) table.
- Designed to be fast rolling, without detrimental effect to puncture protection.
- The jack of all trades tyre from fast commuting to a trusted companion on the long globetrotting tour
- Includes Safety Pro technology under the tread
- Reflective sidewall
Occasionally, without notice, manufacturers change product design and/or specifications.
Mountain Bike Tyres
Use the tyre chooser below to help find the perfect Continental tyre for your riding style and budget. These mountain bike tyres are designed for different MTB disciplines, with lightweight rubber for XC and highly durably tyres for enduro and downhill. Tyre profiles are made for different trail surfaces from dry and hardpacked to soft and muddy.
To find the right size tyre for your bike checkout our size guide below the tyre chooser.
| Hardpack | Dry | Mixed | Loose | Soft | Mud | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Downhill | Der Kaiser Projekt 2.4 Apex | ||||||||||||||||||||||||||||||
| Der Kaiser 2.5 Apex | |||||||||||||||||||||||||||||||
| Der Baron 2.5 Apex | |||||||||||||||||||||||||||||||
| Mud King 2.3 Apex | |||||||||||||||||||||||||||||||
| Enduro | Der Kaiser Projekt 2.4 PT Apex | ||||||||||||||||||||||||||||||
| Der Baron Projekt 2.4 PT Apex | |||||||||||||||||||||||||||||||
| Trail King 2.4 | |||||||||||||||||||||||||||||||
| All Mtn | Trail King 2.2 | ||||||||||||||||||||||||||||||
| Mountain King II 2.4 | |||||||||||||||||||||||||||||||
| Trail/XC | Mountain King 2.2 | ||||||||||||||||||||||||||||||
| Mud King 1.8 | |||||||||||||||||||||||||||||||
| X-King 2.4 | |||||||||||||||||||||||||||||||
| X-King 2.2 | |||||||||||||||||||||||||||||||
| X-King 2.0 | |||||||||||||||||||||||||||||||
| Race King 2.2 | |||||||||||||||||||||||||||||||
| XC Race | Race King 2.0 | ||||||||||||||||||||||||||||||
| Speed King 2.2 | |||||||||||||||||||||||||||||||
How to check your current tyre size?
Take a look at the sidewall of your current tyres and you’ll see one or two sets of figures;
One is the traditional size like 700x28c or 27.5x2.2. The first figure is the tyre diameter(size). The second is tyre width. Note: road bike sizes are in mm, MTB sizes are in inches.
The other set of figures you may see is ETRTO sizing like this 28-622. The first number here is tyre width while the second number relates to wheel diameter.
Here is a comparrison chart for traditional and ETRTO sizing to help you choose the correct tyre size.
| 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 |
| 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 |
Will this tyre fit my wheel?
Your new tyre must be the same diameter as your current one (to fit your wheel rim).
Then, you need a choose a tyre which will fit your frame.
Road bike tyres are generally 21 – 28mm wide
MTB tyres can range from 1.5”-5”
To make things complicated road tyres are measured in mm, while MTB tyres are in inches.
How wide is too wide
You want to leave at least 4mm clearance between your frame and tyres to prevent rub and allow for mud clearance.
Measure the following areas on your frame:
Fork crown (top)
Brake calipers (make sure you squeeze them)
Chainstays
Seatstays
Subtract 4mm and you’ll have the maximum width your frame can handle.
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