Inner Tubes
- Thread starter Glasgow44
- Start date
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What about the blue packet - it says 700 x18/25C. Will this fit 700 x 25 road tyres?Yes, 20-28 means 20-28. You've got 25's. Hit that thang
r04DiE
300km a week through London on a road bike.
He's right - keep hittin' that thang
simon.r
Person
- Location
- Nottingham
IME you can get away with narrower inner tubes in bigger tyres, but not the other way round.
Thanks
I'd prefer the 18-25 for 25 tyres, easier to fit in the tyre without risk of pinching and easier / more compact to carry too if they're spares for on the road!
My Felt road bike came with 25c tyres, but the tubes inside were stamped as 23C. In fact, 2.5 years, 11000 miles, 2 new tyres, and 1 new wheel later, that front inner tube is still the unpatched original!
My Felt road bike came with 25c tyres, but the tubes inside were stamped as 23C. In fact, 2.5 years, 11000 miles, 2 new tyres, and 1 new wheel later, that front inner tube is still the unpatched original!
mjr
Comfy armchair to one person & a plank to the next
- Location
- mostly Norfolk, sometimes Somerset
C used to mean 40mm width IIRC, so 25c means a 25mm wide 40mm wide tyre...in other words, it's confused. Use the ISO ww-dia format (like 25-622) as much as possible.
Racing roadkill
Guru
C is a French nomenclature.
Smokin Joe
Squire
- Location
- Bare headed cyclist, Smoker
I never eat French food.
Racing roadkill
Guru
It would be far funnier if 'c' was a Spanish nomenclature. Picture the scene, you walk into a Spanish bike shop and ask for a tube for a 700c tyre. "I want a tube for a tyre please, 700c", "Si'", "yes 700c", "Si' 700c", "erm, Si', 700c". Oh the endless hours of fun you could have.
