25s or 23s for very long distance rides?

mjk100

Hi all, I'm just about to do a london to Paris over 3 days and am getting my new bike next w/e. It'll either be a Specialized Sectuer or Allez. The secteur comes with 25mm tyres as standard...is it worth getting these switched to 23s for that extra bit of zip!? Or will it compromise a bit of comfort? Also despite being in my mid 30s i've got the lower back of an old man so are there any seats that are particularly good for shock absorbtion / shorts with great padding or other comfort tips.....(sorry shld prob have used 2 threads...) Max

huuregeil

I think you meant to say:

"Is it worth getting these switched to 23s for that little bit less zip!?"

In which case, the question answers itself! 25s will be as fast, if not faster, as 23s - I wouldn't touch them. Well, actually I might: if you're looking for a really plush ride, stick 28s on :-) Tyres will make the biggest comfort difference around, as will correct inflation pressure, which is worth working out before you go.

amaferanga

I'd swap them for some good tyres, 23 or 25, doesn't really matter. Most bikes around that price range come with crappy tyres.

Michelin Krylion carbon would be my choice for that sort of ride, especially at the CRC price

skyd0g

The Specialized bikes normally come with Specialized own brand tyres which aren't the highest rated tyres. For your L2P run, my first choice would be Michelin Krylion Carbons in 25mm. Better rolling, better grip & better p*7$$^r3 resistance than those supplied.

Saddle (opens can of worms) - whichever suits you. The Charge Spoon is a popular one for not too much money.

Shorts - whichever suits your budget, but circa £50ish minimum - and make them bib-shorts. Ideally two pairs, so you have a change available. And a tub of chamois cream.

Other than that, get as many miles as possible into your legs between now and your trip.

Evil Laugh

I would also recommend just putting some
good tyres on it makes so much difference to comfort and feel. As a counter to the michelins, rubino pro 3 at £35 a pair is also a good deal for a popular tyre. I find higher end vittoria tyres to give a lovely smooth ride.

http://www.highonbikes.com/wheels-tyres ... lding.html

keef66

I run 25s which means I can use lower pressures amd enjoy a comfier ride.

Conti 4 seasons which are a great all year round tyre.

bobbyp

I rode LEJOG last year on Krylion 25s. Very comfortable and seemingly bombproof, 1200 miles and not a single puncture despite some shocking roads.

Don't feel as fast aas the 23s I usually ride but certainly took the sting out of the surfaces.

inseine

As far as your back goes, it depends on what's wrong with it. Usually back issues are not due to the saddle but your position. Usually a higher/ less stretched front end helps so make sure you get the right sized bike with the option to change the stem.