Chinese carbon clincher WARNING!!!

goonz

JGSI wrote:

davidof wrote:

martinperry wrote:

the Guy in the LBS who fixed me up was quite firm that "NO ONE round here rides carbon"

I've never seen anyone round my way use carbon rims, apart maybe from a few Brit tourists.

That may be the case.. obviously pro teams have a never ending supply of free top end wheels as you dont see many alloyed up these days

These guys mainly use tubs though, not clinchers which is where the problems arise.

Bar Shaker

martinperry wrote:

Be warned
That is EXACTLY how my "high temperature basalt brake surface" looked, just before it shattered.

I am fully aware of the usage limitations of carbon rims.

As said above, I have a set of Ksyriums for riding in hilly terrain.

ugo.santalucia

Bar Shaker wrote:

Ugo, my brake track looks nothing like the one in your photo.

"inconsistency is my very essence, says the wheel... "

I am so good at quotes I almost make me feel sick!

Bar Shaker

I just think the ones in your photo were made before they introduced the high temp brake tracks.

ugo.santalucia

Bar Shaker wrote:

I just think the ones in your photo were made before they introduced the high temp brake tracks.

They're probably more recent than yours... the guy bought them in June and they were advertised as having the basalt strip...
Not that it matters, as he uses them for time trials, but...

Bar Shaker

I ordered mine on 21st May after reading your report. They were delivered first week of June.

ugo.santalucia

Bar Shaker wrote:

I ordered mine on 21st May after reading your report. They were delivered first week of June.

Alright, then he ordered them in May...

pinno

Any advances on May?!

fossyant

Deep Section wheels are crap for the Peaks also, too much wind. I have an old pair of HED Jet's from about 15 years ago - Hope Ti hub, alloy rim with carbon faring. Early carbon wheels, but they still stopped. I only ever used them for TT's as they were Tubs so less practical than clinchers for every day issues. They were fine on the flat with wind etc. but you'd rather not have them up in the Peaks with the changing wind. Even back then they were about £700.

Did a short Sportive last year in the Peaks - two routes just 50 and 60 miles. It was a very windy day, and many of the deep section riders gave up on the extended section over Axe Edge as the wind was ferocious. I struggled on handbuilt CXP33's which are a low aero profile rim of about 23mm, never mind 50mm.

The OP's post really does show why, if going for carbon wheels, get quality ones if opting for clinchers.

Personally, deep sections are best for TT's. There is bugger all advantage in the Peaks where I live to have Deep Sections for general riding. Lightish and strong is the order up here - the roads are sh1te.

ugo.santalucia

pinarello001 wrote:

Any advances on May?!

What do you mean?

davidof

JGSI wrote:

davidof wrote:

martinperry wrote:

the Guy in the LBS who fixed me up was quite firm that "NO ONE round here rides carbon"

I've never seen anyone round my way use carbon rims, apart maybe from a few Brit tourists.

That may be the case.. obviously pro teams have a never ending supply of free top end wheels as you dont see many alloyed up these days

I'm sure they are quicker, at least for someone who can ride faster than 20 mph but there does seem to be a bit of a fashion thing for MAMILs to be on carbon rims. Again if you are racing and TTing then whatever is best for the job.

davidof

BrandonA wrote:

There are numerous accounts of fake frames snapping under strain, so I guess it makes sense the wheels will under perform too.

Can you post links? I've followed the Chinese Frame threads and apart from order snafus there are very few problems. You do read of a lot of breakages of branded carbon frames though (they may see a lot more).

Bar Shaker

ugo.santalucia wrote:

pinarello001 wrote:

Any advances on May?!

What do you mean?

I think what he means is that your review was written on 24th May. They take approx 3 weeks to arrive and you would have had them a few days to build them, so in reality your customer probably bought them in April, not in June.

It is a minor detail, but one that may explain why the ones in your photo don't have the latest braking track technology. The point of this is, if the construction has improved recently (as looks to be the case) they may well be more resilient than your photo would imply.

Even if they are, I think all riders should be discouraged from taking any deep section carbons on rides involving big hills/mountains... unless followed by a support car carrying loads of spare wheels.

pinno

ugo.santalucia wrote:

pinarello001 wrote:

Any advances on May?!

What do you mean?

Someone ordered their's in June, then someone else on May...I was fully expecting somebody somewhere to say they bought a pair of hoops in April just to cap it off.

sloppyschleckonds

pinarello001 wrote:

ugo.santalucia wrote:

pinarello001 wrote:

Any advances on May?!

What do you mean?

Someone ordered their's in June, then someone else on May...I was fully expecting somebody somewhere to say they bought a pair of hoops in April just to cap it off.

I ordered a set in March, they arrived in April. They look identical to the Wheelsmith offering but £300 cheaper. Delivery took a little longer due to Bank Holidays.

tduncan86

Re: Chinese Carbon Clinchers from diy-bike: After <2 months and 1500km (115psimax, 75kg rider) both front and rear rims cracked down the centre - wheels purchased from diy-bike of eBay. diy-bike offers a warranty - but return shipping is excessive (More than the cost of the wheels). Multitude of emails back & forth - photos, denials, videos - diy acknowledged the failure- but refused to honour their warranty, leaving them with full profit and me with expensive garbage. AVOID diy-bike of Shenzen/Guangdong/China eBay seller.
A YouTube video of the crack can be viewed here: https://www.youtube.com/watch?v=zY0OGszdX6c

iron-clover

I chickened out descending Hardknott when I did it, and it was dry, v. little wind, I weighed under 70kg and I had alloy Open Pro hoops on. I wouldn't go near a descent like that without alloy track or disks to keep the speed right down...

Admittedly I have recently bought Chinese carbon tubs, but I'm using the theory they won't fail as spectacularly as clinchers, and were bought for TTs and hillclimbs only, and maybe some dry road racing once I've put some more miles into them- certainly no massive passes or hilly rides!

ugo.santalucia

iron-clover wrote:

I chickened out descending Hardknott when I did it, and it was dry, v. little wind, I weighed under 70kg and I had alloy Open Pro hoops on. I wouldn't go near a descent like that without alloy track or disks to keep the speed right down...

Admittedly I have recently bought Chinese carbon tubs, but I'm using the theory they won't fail as spectacularly as clinchers, and were bought for TTs and hillclimbs only, and maybe some dry road racing once I've put some more miles into them- certainly no massive passes or hilly rides!

I don't think the split in the video has much to do with overheating or over braking

ricey155

Similar Experience on the burway my 38mm clinchers with balsalt braking trak from velobuild melted the brake pads in 1/2 mile and the rear inner tube exploded - there great wheels for general riding.

but in the wet they stop badly #scary and steep downhills are a no no stick to Ali rims

Put it to bed move on back to the swissside Heidi for the winter, new wheels in April

thegreatdivide

Ricey155 wrote:

Similar Experience on the burway my 38mm clinchers with balsalt braking trak from velobuild melted the brake pads in 1/2 mile and the rear inner tube exploded - there great wheels for general riding.

but in the wet they stop badly #scary and steep downhills are a no no stick to Ali rims

Put it to bed move on back to the swissside Heidi for the winter, new wheels in April

I don't think I understood a word of this post :?

ugo.santalucia

thegreatdivide wrote:

Ricey155 wrote:

Similar Experience on the burway my 38mm clinchers with balsalt braking trak from velobuild melted the brake pads in 1/2 mile and the rear inner tube exploded - there great wheels for general riding.

but in the wet they stop badly #scary and steep downhills are a no no stick to Ali rims

Put it to bed move on back to the swissside Heidi for the winter, new wheels in April

I don't think I understood a word of this post :?

He said he's putting Heidi back on

Bar Shaker

Ricey155 wrote:

my 38mm clinchers with balsalt braking trak from velobuild melted the brake pads in 1/2 mile and the rear inner tube exploded

And this is the fault of the wheels?

CRAIGO5000

Do I buy some of these or what then?I wanted 50mm x 25mm wide Clinchers with basalt surface. They're about £<3 250 rupees at the moment and I'm absolute beast on the bike and even better in the sack AND I likes the odd hill. Will my house explode if I buy some and which is the most trusted vendor?

I day to day on kyserum fat spokes and they are bomb proof.

Halp

DavidJB

95kg...35% decent...£300 carbon wheels...and you expected something not to happen?

dwanes

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19734046#p19734046]joe2008[/url] wrote:

I've been riding a pair of 1100g Tokyo Wheels 38mm carbon tubulars, with DT Swiss 240 hubs and Sapim CX-Ray spokes, since May, about 12 - 20 hours a week. They have been fantastic, still as true as the day they came. The braking, even in the wet has been great, no gripping or squealing at all. In fact this weekend I rode my Zonda clinchers (due to my first tubular puncture) and the aluminium braking felt weak and a bit scary to start with.

When I brought them Tokyo Wheels offered a 365 day test ride (now reduced to 65 days) with free returns and 110% refund - so, if I return the wheels I will have had a years use and they will pay me £60 for my 'trouble' - £60 towards new wheels.

It's worth noting that Tokyo Wheels use Farsports rims, although this agreement has just ended (apparently, due to Tokyo Wheels not following Farsports pricing structure).

So will you take them up on their offer of a 110% refund / return? would be stupid not to :?

Grill

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19734046#p19734046]joe2008[/url] wrote:

I've been riding a pair of 1100g Tokyo Wheels 38mm carbon tubulars, with DT Swiss 240 hubs and Sapim CX-Ray spokes, since May, about 12 - 20 hours a week. They have been fantastic, still as true as the day they came. The braking, even in the wet has been great, no gripping or squealing at all. In fact this weekend I rode my Zonda clinchers (due to my first tubular puncture) and the aluminium braking felt weak and a bit scary to start with.

When I brought them Tokyo Wheels offered a 365 day test ride (now reduced to 65 days) with free returns and 110% refund - so, if I return the wheels I will have had a years use and they will pay me £60 for my 'trouble' - £60 towards new wheels.

It's worth noting that Tokyo Wheels use Farsports rims, although this agreement has just ended (apparently, due to Tokyo Wheels not following Farsports pricing structure).

You weigh as much as my scrote and are riding tubs (this is a clincher thread). Of course you ahven't had any issues.