155gm clincher - bad idea?

A Place to idle the day away talking about anything you fancy. Expect to find cycling and non cycling topics inside

155gm clincher - bad idea?

Postby Dr Frigo » Thu Nov 23, 2006 5:46 pm

I was looking at summer tires for next year's racing.

We all now that weight savings on tire/tube/rim are the most important on a bike.

The tires I currently have on are around 230gm.

Conti GP 4000 are 205gm.

Conti Supersonic (23c) are a silly-light 155gm. But they seem to be more labelled as a TT tire, to be puncture-prone and wear quickly.

A 50gm weigh saving per wheel on the already light GP 4000 does sound a lot though, so I was tempted to have a go (maybe front only) as a race-only tire. But would they be scary on the Palace's infamous curve? Would they be uncomfortable? Has anyone tried them?

http://www.conti-tyres.co.uk/conticycle ... onic.shtml
Dr Frigo
 

Postby Jon H » Thu Nov 23, 2006 7:50 pm

I used the 20c version for time trialling before I switched to tubs. Very very fast and they didn't seem too bad puncture-wise, but wore out in about 1000 miles. They're completely slick so were always a bit scary in the wet.
User avatar
Jon H
lives on this board 24/7!!!
 
Posts: 3392
Joined: Wed Nov 27, 2002 1:30 pm
Location: Bromley

Postby Andrew G » Thu Nov 23, 2006 8:34 pm

I think I'd stick with 4000's. Durable, quick, grippy, good puncture protection, and fairly light. For a 50g saving (albeit a rotating weight) you may as well just leave either your socks / watch / computer etc off the bike.

If Jon says they don't last that long if you're riding to your races you'll wear them out pretty quick unless you faff about switching tyres before and after every race.
Andrew G
lives on this board 24/7!!!
 
Posts: 10477
Joined: Tue Oct 04, 2005 6:47 pm
Location: Selsdon

Postby Elliot M » Thu Nov 23, 2006 8:40 pm

the supersonics have no puncture protection strip at all do they?

i'm well impressed with the grip of the 4000s although i'm not brave enough to take it to the limit

i guess you could go to a 20mm 4000 or similar?

anyway your bike is light enough! i'm amazed you haven't shaved your legs yet to save a gram or two...

also, aren't DA wheels fairly heavy? or do you have the scandium ones?
Elliot M
lives on this board 24/7!!!
 
Posts: 1648
Joined: Mon Dec 02, 2002 10:09 am
Location: On the Merlin Extralight

Postby Dr Frigo » Fri Nov 24, 2006 10:22 am

THanks - I'll have a think about it (and probably end up getting the 4000s).

My DA wheels are just under 1600gm I think.

And shaving my legs would probaly gain more like 50gm ;-)
Dr Frigo
 

Postby Elliot M » Fri Nov 24, 2006 11:28 am

You can get American Classic CR 420 wheels for 300 Euro, sub 1500g, or Ritchey WCS Protocol for 350 Euro, apparently 1350g :shock:
Elliot M
lives on this board 24/7!!!
 
Posts: 1648
Joined: Mon Dec 02, 2002 10:09 am
Location: On the Merlin Extralight

Postby Kevin Rynne » Sat Nov 25, 2006 10:16 pm

I used to race on supresonics in hillingdon in the past, they wear very quickly I still have a new pair left if you want to try them out. They are brilliant on a circut like that but I would not ride them over there as they are so prone to cuts from glass. If you want to borrow them for a race and see if they make make any difference you are welcome to.
Kevin Rynne
lives on this board 24/7!!!
 
Posts: 206
Joined: Thu Sep 16, 2004 1:42 pm

Postby Toks » Sun Nov 26, 2006 4:06 pm

[quote]We all now that weight savings on tire/tube/rim are the most important on a bike.
Sylv, I think any weight saving on tyres for an essentially flat criterium is gonna be negligible - especially in your case :D
Toks
lives on this board 24/7!!!
 
Posts: 4107
Joined: Thu Nov 13, 2003 10:17 pm
Location: Highbury, North London

Postby Dr Frigo » Sun Nov 26, 2006 9:27 pm

[quote]Sylv, I think any weight saving on tyres for an essentially flat criterium is gonna be negligible


Palace, flat - pah!


Kevin - if you're not going to use them I could buy them off you?
Dr Frigo
 

Postby Kevin Rynne » Mon Nov 27, 2006 1:23 pm

dont worry you can have them. Send a text when you want to call around and collect
Kevin Rynne
lives on this board 24/7!!!
 
Posts: 206
Joined: Thu Sep 16, 2004 1:42 pm

Postby Dr Frigo » Mon Nov 27, 2006 5:51 pm

Thanks, I will let you know and we can make a deal.

Do you think you'll make it for the Hillingdon from next weekend?
Dr Frigo
 

Postby Kevin Rynne » Tue Nov 28, 2006 4:34 pm

not sure about hillingdon not been on the bike in over three weeks now and still not over this cold competely, going to cycle to work tomorrow and see how I go
Kevin Rynne
lives on this board 24/7!!!
 
Posts: 206
Joined: Thu Sep 16, 2004 1:42 pm

Postby Toks » Tue Nov 28, 2006 6:27 pm

[quote]not sure about hillingdon not been on the bike in over three weeks now and still not over this cold competely, going to cycle to work tomorrow and see how I go
Kevin mate - thats a no brainer! :( ...Don't worry Sylv those nice fellas in blue and white will gladly offer you their back wheels :)
Toks
lives on this board 24/7!!!
 
Posts: 4107
Joined: Thu Nov 13, 2003 10:17 pm
Location: Highbury, North London


Return to General

Who is online

Users browsing this forum: No registered users and 45 guests

cron