23c vs 25c

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Original Poster:

287 posts

237 months

Sunday 22nd March 2015
quotequote all
Apologies - i'm sure it's been done to death.............

Following a tyre slicing puncture yesterday i'll be getting in some new Continental 4 Seasons. It's my own fault.....I thought to myself during the ride how it'd been ages since a puncture.

Just wondering what people have found who have tried both 23 and 25c. I've been running 23s which can be a bit of a bone shaker on rutted country lanes (100-110psi) and am erring towards replacing with 25s. I'm trying to do 2 x 20 milers a week after work and a longer ride at the weekend - I was on a 40 miler yesterday but am targeting my first 100 sportive this year and wondered if there is a significant comfort/speed difference with the 25's. Just trying to avoid dropping £45 on a pair of 25s only to find I change back to the 23s.

As an aside i'm always heartened by the good will of cyclists when passing a punctured fellow. I was asked by all bar one if I had everything i needed and the one who didn't had slowed and could see I was mid way through a tube swap. If anyone was cycling the path to the side of the cattle grid in Odiham thanks for the offers.

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Pot Odds

Original Poster:

287 posts

237 months

Sunday 22nd March 2015
quotequote all
Seems a fairly unanimous vote for the 25c then.

In case it wasn't clear i'm already a convert to the 4 seasons running them on 23's but really wanted a more comfortable ride if it wasn't too much at the compromise of rolling resistance etc. Seems there's comfort to be had from the 25s at no real cost so will hunt a set down.

Sadly looks like i'll be paying more than my initially suggested £45 as Halfords only have them in stock in 23s ATM.

What sort of pressure are people running their 25's at ? I had my 23's at around 110psi rear and 100 front ?

Thanks all.

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Pot Odds

Original Poster:

287 posts

237 months

Monday 23rd March 2015
quotequote all
Had spotted that the 25's were in stock in Wiggle yesterday so ordered some at lunchtime.

Boneshaker comment probably reflects the poor state of the country lanes that I ride as much as the tyre. I just wondered whether the 25s would be a little more forgiving without compromising in other areas.

To answer one post - I've dropped from 14st7 to 12st13 since January and ride a 2013 Boardman Comp which suits both my budget and ability (plus had SRAM shifters which I prefer). A combination of Halfords sale price, British Cycling 10% and Halfords Vouchers at 10% off meant that it really couldnt be beaten at its price point. I normally run tyres at 110 rear and 100 front but only inflated to 100-105 rear tonight due to split in tyre (+ a few wraps of electrical tape to keep the grit out until the 25s arrive). Maybe I should have been dropping the pressure as the pounds dropped off.

Thanks all for the comments - really helpful.

I'll report back on how I find the 25's once i've run them for a while.

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Pot Odds

Original Poster:

287 posts

237 months

Wednesday 25th March 2015
quotequote all
The tyres and Haribo arrived today so I quickly slipped the 25 on the rear (105psi) but left the 23 on the front as it was getting late and I wanted to get an hour in on the bike.

1st impressions are good - seemed smoother with no noticable down sides. Will pop the other 25 on the front to match them up and report back after a longer ride at the weekend.

Dare I open the debate as to which way round the tread pattern goes on the 4 seasons - whichever way it is (if it matters) i've got the rear on the opposite way round from how I had it before !!

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