tubtastic mate!

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tubtastic mate!

Postby Snoop Doug » Fri Mar 14, 2008 9:19 am

OK - I haven't asked a dumb question for a couple a days.

Tubs v not tubs - what's the difference(s)? Please? Been reading stuff on the hainault TT results (or not :twisted: ) thread and I'm wondering....should I have tubs..? Dunno - Hellllllppppp.

Snivelsnoop - damn bl00dy cold :evil:
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Re: tubtastic mate!

Postby Jon H » Fri Mar 14, 2008 10:35 am

Pros:
Tub wheels are lighter. For example Zipp 404 clinchers are 1660g for the pair and the tubulars are 1252g.
A comparable tubular is lighter than a clincher & tube.
You can run tubs at higher pressure for low rolling resistance.
You don't get snake-bite punctures.
You can ride them when they're flat if you really need to.

Cons:
You have to faff around sticking them on the wheel.
If you carry a spare tubular it's bulkier than a spare inner tube.
Tubs are hard to repair and/or expensive to replace.
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Re: tubtastic mate!

Postby Wal » Fri Mar 14, 2008 11:35 am

[quote]You can run tubs at higher pressure for low rolling resistance.


Until recently, conventional wisdom held that the higher pressures possible with tubulars gave them a rolling resistance advantage, but there now appears to be mounting evidence that tubs actually suffer higher rolling resistance than clinchers due to hysteresis losses in the glue used to attach the tyre to the rim:

[url]http://www.sheldonbrown.com/brandt/rolling-resistance-tubular.html[/url]

[url]http://beta.velonews.com/article/12493[/url]

Certainly, the above articles were enough for me to hold off on buying tubulars for the time being.
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Re: tubtastic mate!

Postby Mike I » Fri Mar 14, 2008 2:34 pm

[quote]You have to faff around sticking them on the wheel.


This is surely a pro, not a con. You can't ride a bike all day, every day. And, when you're not riding it, what better way to spend your time than faffing about with it?

The weight thing is all well and good, of course, but weight is sooo last year. What Snoop needs to know is how many more watts he would need to produce to get the same speed from clinchers as from tubs.
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Re: tubtastic mate!

Postby mrP(Boonen)VT » Fri Mar 14, 2008 3:08 pm

I was brought up using tubs, and have my share of clinchers and in drawing a comparison, favour tubs for a better ride at all pressures - faster maybe, maybe not, but better as they will deform over bumps better than clinchers, and a lot lighter so QED must need less watts to make it move.

There are the obvious disadvantages, which are quite valid and the reason why I don't use them all the time.

My advice therefore would be: if you can only afford one decent pair of wheels - go clinchers, if you have a dedicated pair of racing only wheels, go tubs.

Looking at all the 'pros' bikes on the cars at the Tour - I think all of them were using tubs - a number of teams have 'clincher' sponsors i.e. Michelin, yet they use tubs with the cunning use of a HP logo on the sidewall.
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Re: tubtastic mate!

Postby Snoop Doug » Fri Mar 14, 2008 4:53 pm

This is great stuff folks - even better than all that toaster feedback I got t'other week (decision not yet made info overload burned circuits). So - how do I sell this to Mrs Snoop - it would appear that tub wheels ain't cheap... :oops:
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Re: tubtastic mate!

Postby Dominic » Fri Mar 14, 2008 5:01 pm

Not sure you do sell it to her Snoop. By that I mean if she is like my wife she doesn't care/know if I am buying tubs or not she just sees the amount of money being spent on wheels. If you need another set of wheels then that is what you are selling her. However I can quite clearly hear her saying "What about those other wheels you bought from Pearsons a little while ago, will they not do?" :D

When you have got over that, get a set of Planet X 50s. About £500 and you can use them for any TT you want and put them on your road bike when you are feeling a bit bling!
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Re: tubtastic mate!

Postby Snoop Doug » Fri Mar 14, 2008 5:14 pm

nice suggestion Dominic. Their website says they're Shi(*)mano only - I'm afraid I'm old skool tractor me. Pardon my ignorance folks but is it easy to make a
Shi(*)mano wheel convert to campag?

Snoop
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Re: tubtastic mate!

Postby Andrew G » Fri Mar 14, 2008 5:27 pm

Planet X 50s are also Campag Snoop - trust me :wink: .
You can sometimes (but rarely as most are a Shimano freehub) get a good 2nd hand deal where the wheels are actually brand new and never had tubs fitted to them - trust me :wink: .
If you go for Planet X 50s get them from GBs. They are the only UK dealer for Planet X but you can wave your ACC membership card and ask for a discount.
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Re: tubtastic mate!

Postby Ian A4size » Fri Mar 14, 2008 5:33 pm

Take it from me sno(t)op, you can get the planetx 50's in about 2 days from good old GB's. They are a little reluctant to give a 10% discount on PX stuff. Price was about 520, including tubs and carbon friendly brake blocks.
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Re: tubtastic mate!

Postby Snoop Doug » Fri Mar 14, 2008 5:41 pm

luvvly jubbly chaps - I don't have a membership card :cry: will see what I can wangle :wink:
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Re: tubtastic mate!

Postby Andrew G » Fri Mar 14, 2008 5:48 pm

Wasn't sure if yo got the discount at GBs on Planet X as they just order it as you would, just makes your life easier than dealing over t'internet. I think they are the only dealers as they know the PX guys.
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Re: tubtastic mate!

Postby Mike I » Fri Mar 14, 2008 6:06 pm

[quote]how do I sell this to Mrs Snoop


I am pleased to report that Mrs I has no idea how many wheels I have, still less whether they're tubs or clinchers. I suggest you spread a little more confusion at Snoopington Manor. That way you won't have to sell the idea to Mrs Snoop, because she won't even notice them.
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Re: tubtastic mate!

Postby Ian A4size » Fri Mar 14, 2008 8:37 pm

Good thinking Mike!

If we all lend snoop a few wheels, frames,etc then he is bound to get away with it.
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Re: tubtastic mate!

Postby tel » Sun Mar 16, 2008 4:29 pm

Just ordered a pair of carbon tribars from Pearsons-£260 I think, told the old woman they were £60. She thought that they were far too expensive.

Tubs for racing, clinchers for training.

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