- News
- Reviews
- Bikes
- Accessories
- Accessories - misc
- Computer mounts
- Bags
- Bar ends
- Bike bags & cases
- Bottle cages
- Bottles
- Cameras
- Car racks
- Child seats
- Computers
- Glasses
- GPS units
- Helmets
- Lights - front
- Lights - rear
- Lights - sets
- Locks
- Mirrors
- Mudguards
- Racks
- Pumps & CO2 inflators
- Puncture kits
- Reflectives
- Smart watches
- Stands and racks
- Trailers
- Clothing
- Components
- Bar tape & grips
- Bottom brackets
- Brake & gear cables
- Brake & STI levers
- Brake pads & spares
- Brakes
- Cassettes & freewheels
- Chains
- Chainsets & chainrings
- Derailleurs - front
- Derailleurs - rear
- Forks
- Gear levers & shifters
- Groupsets
- Handlebars & extensions
- Headsets
- Hubs
- Inner tubes
- Pedals
- Quick releases & skewers
- Saddles
- Seatposts
- Stems
- Wheels
- Tyres
- Health, fitness and nutrition
- Tools and workshop
- Miscellaneous
- Cross country mountain bikes
- Tubeless valves
- Buyers Guides
- Features
- Forum
- Recommends
- Podcast
forum
Continental tire size confusion
So, I read your review on all the confusing sizes with all the tire manufacturers. Here in the states most cyclists use the French measurements, i.e. 700c x 25. I just ordered some Continental tires for my gravel riding. I like some knobs on the tread, so I order "Continental Extra Puncture Resistant 700c x 28."
This has happened a few times as I remember. What I receive on the label is 28 x 1 5/8 x 1 1/8. That is another measurement for 700c x 28, I understand.
But what is odd is that on the tire the orange & gray logo reads is "Continental, RIDE TOUR , electric plug graphic, then 25, then EXTRA, Puncture BELT". When painstakingly read the black imprint on black tire info, it reads my good ol' 700 x 28.
So, when my ride buddies see that visible 25, they tell me that I should go at least to 28's. So, what does that "25" mean on the Continental logo?
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.
Latest Forum Topics
Latest Comments
- Eton Rifle 3 hours 41 min ago
The difference is that the Labour Party has actually done something about it by booting him out. If he'd been a Tory, the twat would have been...
- BBB 4 hours 35 min ago
"Buggy hit by car blamed on traffic scheme"...
- Jogle 4 hours 43 min ago
The Giro starts on the 9th May, so the new programme finishing on 5th June would mean that it covers the end of the Giro and then stops
- chrisonabike 4 hours 44 min ago
I feel Google needs one of Henry Beard's books for more up-to-Silver-Age colloquial source material (or even better literal translation)...
- ErnieC 4 hours 52 min ago
I would say a 10 in front of the 6 would be a more appropriate sentence.
- Dr Neal Spowage 5 hours 55 min ago
I'm disabled and a wind up workstand would be a godsend for even the most basic of maintenance tasks. These things are almost non-existent. I'd be...
- Rendel Harris 9 hours 50 min ago
A set of pedals can come in proper handy too sometimes.
- NoOneSpecial 10 hours 17 min ago
Memory lane!...
- wtjs 13 hours 48 min ago
Mercedes A-Class WU66 LLJ below went without MOT for 8 1/2 months from 19.10.23 to 2.7.24. I just happen to be doing some following up and evidence...
- HarrogateSpa 14 hours 46 min ago
I think you've got your Yateses mixed up.
Add new comment
2 comments
Just to add my recent experience, a Continental 700x25 measures up as 27mm on a DT R460 rim. A 700x28 measures up as 31mm.
When frame manufacturers advertise clearance for 28mm tyres, they mean tyres which actually measure 28mm, so not a tyre badged as 700x28mm, d'uh!
Continental UK's page for that tyre shows sizes etc, the ETRTO size of 622mm is the one to look for if you have 700c rims (yes, it's somehwat confusing):
https://conti-tyres.co.uk/commuting-touring/ride-tour
28 x 1 5/8 is inches, which is 40mm width while 1 1/4 is 31mm. If you fit the tyre (presuming it is the right size for your rims) then, as John says, the real-world tyre width will vary a little depending on the width of your rims.
The plug icon & 25 probably indicates its suitability for e-bikes and a rating.