'Upgrading' to skinny tyres pointless for London commuting

Yeah. I'm fucking slow no matter how much 'high performance' bike jewellery I waste my borrowed money on.

37c randonneurs do me great on my rattler, comfy as hell and just bloody awesome.

Well this is a laugh.
I'm keen to know who the 'Unholy trinity' are and who/what is N****?

As for rolling resistance. Does anyone really give a shit? I have these tyres and not had a puncture in London for over a year now. Which should be the single most important factor when chosing tyres for a commute. Unless you like pissing around in the wind and rain with a puncture repair kit and tyre levers

Specialized All Condition Armadillo Elite Tyre | Evans Cycles

Rubbish link mike, but a damngood point nontheless.

N*** = Nerd I guess.

As for rolling resistance. Does anyone really give a shit? I have these tyres and not had a puncture in London for over a year now. Which should be the single most important factor when chosing tyres for a commute. Unless you like pissing around in the wind and rain with a puncture repair kit and tyre levers

^ This.
Commuting is about reliability.

huh, me?

Well this is a laugh.
I'm keen to know who the 'Unholy trinity' are and who/what is N****?

As for rolling resistance. Does anyone really give a shit? I have these tyres and not had a puncture in London for over a year now. Which should be the single most important factor when chosing tyres for a commute. Unless you like pissing around in the wind and rain with a puncture repair kit and tyre levers

Specialized All Condition Armadillo Elite Tyre | Evans Cycles

then again I had 3 consecutive p******es in a month and none with gators.

swings and roundabouts

but "single most important factor when chosing tyres for a commute" +1

and for the last time, capes are aero

Thanks Apollo.

All he needs is an aero helmet grin

the bat ears act as integrated aero fins :D

There is an interesting article in the current CTC magazine about this: Super light race bike vs. Clunky old steel framed wide tired commuter.
The conclusion was that there was no difference in time no matter which bike was used.

It's bank holiday Monday. Can we get back to the fighting, please?

hippy is fat.

I think the insults were exhausted on the first page, some corkers there.

There is an interesting article in the current CTC magazine about this: Super light race bike vs. Clunky old steel framed wide tired commuter.
The conclusion was that there was no difference in time no matter which bike was used.

yeah, I got that from the ABCC mag, full article, really good

It's bank holiday Monday. Can we get back to the fighting, please?

hippy is fat.

stfu hipster

The OP made a mistake running some 25c tyres too hard on a commute.

Can we close the thread now? It seems to be bringing out the worst of LFGSS.

There is an interesting article in the current CTC magazine about this: Super light race bike vs. Clunky old steel framed wide tired commuter.
The conclusion was that there was no difference in time no matter which bike was used.

...which is fine for a certain type of riding.

But... there aren't any studies to support the long accepted belief that lighter wheels are faster (than heavy wheels) although it's clear that lighter wheels will help you climb, hold a wheel and stay with a group.

WWMDCCD?

20c on the front for the aero, 23c on the back for the low rolling resistance. And 35c (actually 38mm wide) on the "commuter", not that I commute but it's the bike I'd use if I did.

It's been said a million times before, but Ed is half right. Wider tyres have lower rolling resistance all other things being equal. By leaving out that caveat, Ed exposes himself to flak from nit-pickers who can point to examples of 1kg 2.5" DH tyres which don't roll as fast at 2 bar as a Veloflex Record 20c rolls at 10 bar. Arguments about extra weight of bigger tyres are spurious, since very few rides have a terrain where the weight isn't easily countered by the lower rolling resistance. On a commuter bike where the tyre probably doesn't have any significant interaction with the rim as far as air flow goes, switching up from 25c to 35c adds about 0.007m² to the CdA, out of a total which is likely to be around 0.4m², i.e less than 2% extra aero drag

Plug the numbers into the calculator and we can see that at 25km/h, tyres 10mm wider which weighed 500g more for the pair would still save power as long as they had 10% less rolling resistance. AFM tyre tests show >10% drop in Crr switching from 23c to 25c versions of the same tyre in some cases, so there seems to be scope for adding some protection and lowering pressure and still getting a 35c to outroll a 25c by enough at commuting speeds to make it faster overall.

But is he correct to say that wider tyres equal better performance?

I think not...

there aren't any studies...although it's clear

If there aren't any studies, what is it that makes it clear? Superstition, tradition and old wives' tales, presumably.

Seaweed

But is he correct to say that wider tyres equal better performance?

That depends on which wider tyres, and what performance. There are a great many rides where a wider tyre will require less total energy to complete the journey at a given average speed, so he is, as I said, half right.

I have been promoted to nitpicker.

My life is complete. In fact its gone full circle. My grandad called me this, and that was yonks ago. Bless his socks, and the daisies that surround them.

Rubbish link mike, but a damngood point nontheless.

N*** = Nerd I guess.

N followed by three letters. A name. There's something there, not sure, let me think about it.

......On a commuter bike where the tyre probably doesn't have any significant interaction with the rim as far as air flow goes, switching up from 25c to 35c adds about 0.007m² to the CdA, out of a total which is likely to be around 0.4m², i.e less than 2% extra aero drag......

is this the most MDCC_tester post evar??!

I have been promoted to nitpicker.

My life is complete. In fact its gone full circle. My grandad called me this, and that was yonks ago. Bless his socks, and the daisies that surround them.

I would go for 'granddad' personally.

But is he correct to say that wider tyres equal better performance?

I think not...

Actually I said lower rolling resistance, I said nothing about it being better in performance.

The OP made a mistake running some 25c tyres too hard on a commute.

Can we close the thread now? It seems to be bringing out the worst of LFGSS.

'Worst' is street-forum slang for 'best', right?