6.8 Kilo roadbike

MungoMan

I wonder why the road bikes for sale online almost never mention the weight of the bike.

I'm looking for a 6.8 Kg bike (as this is the UCI limit for how light a bike can be in competition)

Is it possible to have a 6.8kg bike for under €2000 ?

Any examples ? Carbon would be the preference, although Aluminium would be fine too.

full gas

not going to happen for under 2000 ,

dooverylittle

MungoMan wrote: »

I wonder why the road bikes for sale online almost never mention the weight of the bike.

I'm looking for a 6.8 Kg bike (as this is the UCI limit for how light a bike can be in competition)

Is it possible to have a 6.8kg bike for under €2000 ?

Any examples ? Carbon would be the preference, although Aluminium would be fine too.

I dont think you can get 6.8kg for 2K.
I think you would struggle do do better then this for 2k.
http://www.canyon.com/_en/roadbikes/bike.html?b=2507
7.2Kg.

coastwatch

A little over budget @ €2249, but there is this
rose-xeon-crs-4400-double

and if it has to be under €2000 then there's this, not quite 6.8kg but close,
rose-xeon-rs-4400-double/aid:549691

Haven't seen any reviews of either, but looks like alot the weight saving comes from thinning the seat stays. Have to say getting an aluminium framed bike to to sub 7kg is pretty impressive.

marketty

coastwatch wrote: »

and if it has to be under €2000 then there's this, not quite 6.8kg but close,
rose-xeon-rs-4400-double/aid:549691[/.

That's pretty cool, I'd imagine it would annoy a few people who payed a lot more for the lightest carbon fibre!

billy.fish

marketty wrote: »

That's pretty cool, I'd imagine it would annoy a few people who payed a lot more for the lightest carbon fibre!

Carbon fibre has nowt to do with weight most of the time. It's stiffer. You can easily get a scandium or Ti or Alu frame and build below the 6.8kg build. most of them will flex like a bugger mind you.

marketty

billy.fish wrote: »

Carbon fibre has nowt to do with weight most of the time. It's stiffer. You can easily get a scandium or Ti or Alu frame and build below the 6.8kg build. most of them will flex like a bugger mind you.

You're right I just know some people with more money than sense who think aluminium is for peasants!

billy.fish

Some people are stupid you see.

Scandium is a great material once you don't load it in the wrong direction.

Hungrycol

MungoMan wrote: »

I wonder why the road bikes for sale online almost never mention the weight of the bike.

Cos different size frames are a different weight and anyway a purchase shouldn't be made on weight alone. Cheaper to lose weight yourself.

bcmf

http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=98169

Where else but WW. Some guy is trying to do a build. He is kitting out with 105 though. Surely if you upgrade to lighter components you would have a chance at sub 7kg but the budget would ,inevetibly, rise.

Lumen

coastwatch wrote: »

A little over budget @ €2249, but there is this
rose-xeon-crs-4400-double

Weight without pedals is cheating, since the UCI limit includes pedals.

6.8kg for a rideable bike with pedals, bottle cage(s), computer mount is quite difficult to hit with stock groupset, Ksyrium clinchers and ordinary finishing kit.

niceonetom

The law of strong-light-cheap dictates that attempts at weightweenieism on a budget must involve taking risks on durability. It's the law.

Lashed

Hungrycol wrote: »

MungoMan wrote: »

I wonder why the road bikes for sale online almost never mention the weight of the bike.

Cos different size frames are a different weight and anyway a purchase shouldn't be made on weight alone. Cheaper to lose weight yourself.

So true. Add 2 full water bottles and pedals and you're + 2kg and up to an 8kg bike. It's the wheels that make the biggest difference as these are 'spun mass and the real weight you are trying to propel forward. Better off to save a couple of grammar here than on the frame

Tenzor07

Light wheels most important...

....Oh and loose the weight off your backside!

Lumen

Lashed wrote: »

So true. Add 2 full water bottles and pedals and you're + 2kg and up to an 8kg bike.

Heavier bikes also require pedals and don't make you any less thirsty.

MungoMan

Are we saying that the bikes the pro riders have are generally not durable because the components are so light?

I guess long term durability wouldnt be an issue for a pro team as they can swap out components which start to wear out after a few days/weeks if they need to.

Lumen

MungoMan wrote: »

Are we saying that the bikes the pro riders have are generally not durable because the components are so light? I guess long term durability wouldnt be an issue for a pro team as they can swap out components which start to wear out after a few days/weeks if they need to.

Many pro riders ride bikes heavier than 6.8kg. Alloy bars are preferred over carbon due to greater durability in a race (after a crash).

Also, tubs save a couple of hundred grams which makes the limit that much easier to hit.

FWIW I think the limit should be 6kg or 7kg. The use of an imperial limit (15lb) in a European-dominated sport offends me.

AstraMonti

There are also cases that teams put extra weight in the seattube just to reach the limit.

Anyway, 6.8kgs on a budget would be hard.

Lumen

AstraMonti wrote: »

There are also cases that teams put extra weight in the seattube just to reach the limit.

I have read that but I cynically suspect that it might still be largely marketing nonsense from equipment sponsors (e.g. Cannondale).

"Cannondale are famous for their "too light for the UCI" frames; a trait that goes back to the 2003 Tour de France and the manufacturer’s first foray into carbon fiber with the Six13 model, which Gilberto Simoni rode with weights glued on the top tube behind the stem. That bike was introduced with an advertising campaign called: ‘Legalize my Cannondale,’ but at the time only Simoni’s 50cm size was out of compliance."

http://www.bikeradar.com/gear/article/pro-bike-vincenzo-nibalis-liquigas-cannondale-supersix-evo-30367/

It seems odd that they go all the trouble to invent a system of holding weights in the seat tube then go and use carbon handlebars.

niceonetom

MungoMan wrote: »

Are we saying that the bikes the pro riders have are generally not durable because the components are so light?

I guess long term durability wouldnt be an issue for a pro team as they can swap out components which start to wear out after a few days/weeks if they need to.

They're not trying to do it for €2,000. The can have strong and light bikes because cost is generally not an issue. That said, many riders still opt for heavier components for durability though the entire bike may still come in at the 6.8kg because of exceptionally light (and expensive) stuff elsewhere in the build.

niceonetom

Lumen wrote: »

I have read that but I cynically suspect that it might still be largely marketing nonsense from equipment sponsors (e.g. Cannondale).

A 6.6kg mike with ballast added strikes me as so stupid that only a marketing man could demand it. Any decent engineer (or rider, for that matter) would surely prefer to use those extra grams to make the bike stiffer, stronger or more comfortable etc.

Anyway, the problem of adding grams is a long way from where most of us are.

AstraMonti

Lumen wrote: »

I have read that but I cynically suspect that it might still be largely marketing nonsense from equipment sponsors (e.g. Cannondale).

Could very well be marketing bolloxing, but see here too: http://www.bikeradar.com/news/article/first-look-cervelos-ultralight-r5ca-frame-26360/

Brett Lancaster rode a version of the R5ca at last week’s Tour of California. To keep the bike within the UCI weight limit, Cervélo mechanics had to stick two full-length chains (keep in mind that each of SRAM’s PC-1090R chains weighs 255g) down the seat tube, plus a custom-made 562g weight (because they couldn't fit any more chains in).

MungoMan

Lumen wrote: »

FWIW I think the limit should be 6kg or 7kg. The use of an imperial limit (15lb) in a European-dominated sport offends me.

Hold on, the limit is not 15 lbs, it's 14.9914338 lbs

The limit is 6.8 kilos exactly !