There's fine, and then there's Zipp
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There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 10:52 am
Recently I chatted to Josh Poertner, the Technical Director of Zipp Wheels and let him talk and share his knowledge, refreshing that they (he) understands marketing though prioritises solid facts and performance - Zipp wheels are not easily accessible for all, the company understand their market position (so are not all wheels for all riders) though I specifically asked about Chinese made carbon wheels, and also ceramic bearings and he puts it into perspective.
Josh is an engineer and not a marketer, though he still comes from Zipp and believes in the product, so obviously speaks favourably - whether you are new to carbon, or foster more advanced knowledge, I am sure you will appreciate this, he begins with the basics, classifications or Carbon (3K, 6K, 12K etc) and then looks more specifically at how this fits in with Zipp.
For techies - here are some of the exciting Computational Fluid Dynamics renderings - which are better explained in the article.
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Re: There's fine, and then there's Zipp
Postby familyguy » Mon Dec 03, 2012 12:17 pm
Jim
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Re: There's fine, and then there's Zipp
Postby twizzle » Mon Dec 03, 2012 12:31 pm
...real cyclists don't have squeaky chains...
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 12:34 pm
On the comparisons it makes you think about what you buy - particularly as Carbon becomes more accessible as is the option of buying a cheap generic carbon wheelset direct. On the one side buying a brand name comes at a price, on the other a brand name should bring with it a level of trust - you know you are getting quality. With most of the carbon production for bikes in Asia, the lines are burred - is the Generic XYZ really that much worse... or is it the same as Brand ABC that is manufactured next door. There is a lot of room for variation. Zipp are 100% US made so differentiate themself in this way - it affects the price though they also don't see themself in direct competition with brands who cater for the entire market (entry - mid - high range).
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Re: There's fine, and then there's Zipp
Postby im_no_pro » Mon Dec 03, 2012 12:38 pm
The best case scenario of ceramic bearings in a wheelset is 1 watt at 30 miles and hour. We sell ceramic bearings and they’re $1000, but we’re honest: “guys, it’s 1000 bucks for a watt”. Tony Martin, at the worlds, rides thousand dollar ceramic bearings. For the consumer, you can buy a better tyre and you’ll save twice that. You put latex tubes in there you’ll save 6 times that amount. A new chain on your bike can be as much as 6 watts compared to a worn chain. Just cleaning your drive chain is a couple of watts. 1 watt of ceramic bearings is about 3 seconds per 40 kilometres. I can find you a minute for the 40k for very little money.
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Re: There's fine, and then there's Zipp
Postby warthog1 » Mon Dec 03, 2012 8:22 pm
+1im_no_pro wrote:Great interview. Some of the tech jargon flew right past me, but found this part in particular rather interesting:
The best case scenario of ceramic bearings in a wheelset is 1 watt at 30 miles and hour. We sell ceramic bearings and they’re $1000, but we’re honest: “guys, it’s 1000 bucks for a watt”. Tony Martin, at the worlds, rides thousand dollar ceramic bearings. For the consumer, you can buy a better tyre and you’ll save twice that. You put latex tubes in there you’ll save 6 times that amount. A new chain on your bike can be as much as 6 watts compared to a worn chain. Just cleaning your drive chain is a couple of watts. 1 watt of ceramic bearings is about 3 seconds per 40 kilometres. I can find you a minute for the 40k for very little money.
I read that and was impressed also
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Re: There's fine, and then there's Zipp
Postby toolonglegs » Mon Dec 03, 2012 8:25 pm
I just read this and think... boy you are ripping us off.We sell ceramic bearings and they’re $1000
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Re: There's fine, and then there's Zipp
Postby Ozkaban » Mon Dec 03, 2012 8:39 pm
I read that and thought... boy some people are desperate to be ripped off.toolonglegs wrote:I just read this and think... boy you are ripping us off.We sell ceramic bearings and they’re $1000
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 8:42 pm
Have another read. If you need this 1 watt advantage, this it what it takes - but most riders can do plenty of other things to improve performance before they think about ceramic bearings. For their zipp wheels they run steel races and balls for the bearings but so highly specced that they are better than most ceramic bearings, considering most ceramic bearings are hybrid ceramic bearings with ceramic balls and steel races.toolonglegs wrote:I just read this and think... boy you are ripping us off.
So instead you should think "do I need this, am I getting the value for this?" and his example puts it in perspective.
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Re: There's fine, and then there's Zipp
Postby toolonglegs » Mon Dec 03, 2012 8:54 pm
I understand that, still if you look at the best quality DT hubs ceramic hubs for example they certainly come in way under US$1000 just for a bearing upgrade... maybe he is exaggerating for effect.AUbicycles wrote:Have another read. If you need this 1 watt advantage, this it what it takes - but most riders can do plenty of other things to improve performance before they think about ceramic bearings. For their zipp wheels they run steel races and balls for the bearings but so highly specced that they are better than most ceramic bearings, considering most ceramic bearings are hybrid ceramic bearings with ceramic balls and steel races.toolonglegs wrote:I just read this and think... boy you are ripping us off.
So instead you should think "do I need this, am I getting the value for this?" and his example puts it in perspective.
Very nice wheels that Zipp make... but you do seem to hear a lot of stories of failures with them.
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Re: There's fine, and then there's Zipp
Postby g-boaf » Mon Dec 03, 2012 9:00 pm
I do like the Zipp wheels but as TLL hinted, the talk of failures put me off them. I spent my dollars on a different brand, so I'm not really in the market for a set of these soon.
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Re: There's fine, and then there's Zipp
Postby warthog1 » Mon Dec 03, 2012 9:04 pm
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 9:17 pm
If you have questions about Zipp wheels, I can collect and forward them on, probabably first to the local importer who is also pretty cluey.
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Re: There's fine, and then there's Zipp
Postby winstonw » Mon Dec 03, 2012 9:47 pm
As for the quality of Chinese carbon wheels, bicycle forum members are doing a great job of alerting which are reliable.
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Re: There's fine, and then there's Zipp
Postby usernameforme » Mon Dec 03, 2012 9:50 pm
On a more serious note... Zipp struggle with overheating issues with carbon clinchers while Gigantex lower the brake track
Interesting to read that zipp rims can handle 232 degrees, Farsports are now claiming that some of their rims can take 220... looks like the chinese manufacturers are catching up (if the claim is accurate)
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 10:05 pm
As suggested, where a brand stands behind a product, regardless of where it is made, the brand has their reputation which is on the line if they deliver subpar. But the Generic "no name" carbon - who knows what is behind that. You could see over compensation that negates the value of using carbon fibre or product that aims to fulfill criteria such as light-weight and in doing so dramatically increase the risk of failure. As consumers we are told 'carbon, carbon, carbon" but carbon itself is not the be-all and end-all. For consumers it is knowing what you are buying.
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On the ceramic bearings I would say that the weight is neglible - the rolling resistance is coupled with the lifespan. Why would you upgrade though?.. rolling resistance.
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Re: There's fine, and then there's Zipp
Postby Byke » Mon Dec 03, 2012 10:08 pm
You're probably better off getting carbon bearings in your chain cleaner.AUbicycles wrote:Have another read. If you need this 1 watt advantage, this it what it takes - but most riders can do plenty of other things to improve performance before they think about ceramic bearings.
Having paid for such an upgrade you'd naturally feel like cleaning your chain more often, saving more watts than if you'd put the bearings in your wheels.
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Re: There's fine, and then there's Zipp
Postby Xplora » Mon Dec 03, 2012 10:14 pm
I'm much more sympathetic to the off your mammaries insane prices for the Zipp when you consider that the wheels have as much, if not more R&D than the top frames, and let's face it - it's not like the wheel doesn't any less labour or effort than the top frame.
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Re: There's fine, and then there's Zipp
Postby toolonglegs » Mon Dec 03, 2012 10:24 pm
Be interested to hear from an independent wheel builder as to their thoughts as well.
I am going to buy good wheels again for next season, not sure what yet having just sold my DuraAce... leaning towards Mavic at the moment being that they are local.
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Mon Dec 03, 2012 10:35 pm
For bikes I was in contact with a few Chinese suppliers but they quickly cease contact when I say 1) for review I am not buying the frames and 2) we want to cut a frame open. I am still keen though really needs proper lab testing to get the values which also costs money.
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Re: There's fine, and then there's Zipp
Postby Xplora » Mon Dec 03, 2012 10:48 pm
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Re: There's fine, and then there's Zipp
Postby toolonglegs » Mon Dec 03, 2012 11:13 pm
If a Chinese copy is identical profile to a Zipp then it will have with in a flea's appendage of the same drag... doesn't tell me anything about the build quality though.Xplora wrote:Yep the tunnel is pretty much essential. The yaw and basic aero, as well as the hubs, are the only things you need to physically test, and the only things that you have no true data for. I am willing to assert that it would be industry suicide for mid tier brands to allow themselves to be exposed to this kind of testing... and it is just too pricey to just buy the wheels and chuck into a windtunnel....
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Re: There's fine, and then there's Zipp
Postby AUbicycles » Tue Dec 04, 2012 12:20 am
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Re: There's fine, and then there's Zipp
Postby ZepinAtor » Tue Dec 04, 2012 1:09 am
Personally if I were to consider a set of $3000 Zipps & a $3500 set of Madfibre's or a custom built ENVE rim on some super high end hubs I'd opt for the latter hands down.
Good article all the same.
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Re: There's fine, and then there's Zipp
Postby Xplora » Tue Dec 04, 2012 8:28 am
I think there is definitely scope for both questions. The simple fact is that we are outside our ability to test.ZepinAtor wrote: I feel the real comparisons are Zipp v Lightweights/Madfibre/Enve etc which are more comparable & in a similar price range
I personally would love Greg from TWE to put up some of his wheels against the Zipps. He claims that they are comparable, but there isn't much Australia love on the forum. I personally would use him, just annoying that I don't have 1000++ to pony up for a couple wheels
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