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Re: Aerocoach new carbon wheels [nversteege] [ In reply to ]
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I also had to choose between zephyr and the Titan. But I choose for the zephyr because it is more al round. And a 10cm front with cross winds is hard to handle sometimes. (I have a 9cm stealth wheelset but it is not easy to handle with wind force 4 and above)

Comment my position https://m.youtube.com/watch?v=2spTfinJ72c
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Re: Aerocoach new carbon wheels [rbe] [ In reply to ]
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rbe wrote:
I also had to choose between zephyr and the Titan. But I choose for the zephyr because it is more al round. And a 10cm front with cross winds is hard to handle sometimes. (I have a 9cm stealth wheelset but it is not easy to handle with wind force 4 and above)

Rbe makes a good pitch for the ZEPHYR - itโ€™s more stable than the TITAN and does allow you to run different tyres with different widths and not worry too much.

One way of looking at it is that if youโ€™re happy to run Vittoria Corsa Speeds because you just want to go as fast as physically possible then choose the TITAN, but if you want to run a slightly different tyre (maybe a GP5000 TL) then the ZEPHYR will be a better choice. A 25mm tyre will slow down the TITAN and make the ZEPHYR a faster wheel, you have to run a 23 on the TITAN. I do TTs of varying lengths and have been using a TITAN w/Vittoria Corsa Speed all year though, handling wise itโ€™s very stable indeed - more so than its depth would suggest.

AeroCoach UK
http://www.aero-coach.co.uk
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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Okay, so according to the graphs on the website the difference between the wheels is about 2.8 watts. I assume the potential benefits of a TITAN will be higher, the higher the speeds are? Since it is better at lower yaw angles. I'm just trying to see if it's worth the extra money for me, riding at 45km/h speeds for 20 min time trials (hopefully .. adding a disc and good front wheel will boost that a bit).
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Re: Aerocoach new carbon wheels [nversteege] [ In reply to ]
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nversteege wrote:
Okay, so according to the graphs on the website the difference between the wheels is about 2.8 watts. I assume the potential benefits of a TITAN will be higher, the higher the speeds are? Since it is better at lower yaw angles. I'm just trying to see if it's worth the extra money for me, riding at 45km/h speeds for 20 min time trials (hopefully .. adding a disc and good front wheel will boost that a bit).

Yes that's right - 2.8w at 45kph when using a 23mm Vittoria Corsa Speed. Let's say you scale that up to 50kph - it will then be >4w as you'll experience lower yaw angles as well as the increased wattage savings at higher speeds. You get more from the front wheel than the rear - on our disc data page you can see there's a 2w swing between the discs at 45kph but there's much more from front wheels.

AeroCoach UK
http://www.aero-coach.co.uk
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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I believe the ultra disc comes in disc brake option with extralite ultrahubs. Can they be swapped for something like carbon ti?
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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Also, and this is of utmost importance ... how does the disc wheel sound? Whompy? ๐Ÿ˜ฌ๐Ÿ˜‚

@the.lazy.triathlete
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Re: Aerocoach new carbon wheels [Rocket_racing] [ In reply to ]
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Rocket_racing wrote:
I believe the ultra disc comes in disc brake option with extralite ultrahubs. Can they be swapped for something like carbon ti?

Ultra discs we just build on Extralite hubs - Carbon Ti are heavier than Extralite so would put them over 1000g

AeroCoach UK
http://www.aero-coach.co.uk
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Re: Aerocoach new carbon wheels [TLT] [ In reply to ]
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TLT wrote:
Also, and this is of utmost importance ... how does the disc wheel sound? Whompy? ๐Ÿ˜ฌ๐Ÿ˜‚

Aha! They do make a cool noise - it's different from something like a solid disc but people will know about it when you overtake them ;)

AeroCoach UK
http://www.aero-coach.co.uk
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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Hi Xavier, awesome new offering of wheels from Aerocoach!

I have a question regarding the aerodynamics of the rim brake vs the disc brake versions of the Titan and Zephyr wheels.

If I understand the specifications correctly a significant part of the aerodynamic benefits from the AEOX wheels compared to other brands come from the narrow, high-flange hubs, am I right?

You mention that the disc brake versions come with straight pull hubs, which I assume need to be of a standard width to be able to cope with the added torsional forces resulting from disc brakes.. Do you have any data as to how that negatively impacts the overall aerodynamics of the wheel, and how they compare to the competition then?

Kristoffer

"Ride smarter, not harder" -me ;)
Last edited by: Vistinator: Nov 14, 19 1:56
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Re: Aerocoach new carbon wheels [Vistinator] [ In reply to ]
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Vistinator wrote:
Hi Xavier, awesome new offering of wheels from Aerocoach!

I have a question regarding the aerodynamics of the rim brake vs the disc brake versions of the Titan and Zephyr wheels.

If I understand the specifications correctly a significant part of the aerodynamic benefits from the AEOX wheels compared to other brands come from the narrow, high-flange hubs, am I right?

You mention that the disc brake versions come with straight pull hubs, which I assume need to be of a standard width to be able to cope with the added torsional forces resulting from disc brakes.. Do you have any data as to how that negatively impacts the overall aerodynamics of the wheel, and how they compare to the competition then?

Kristoffer

Hi Kristoffer - it's a good question, but something that needs to be considered in the bike as an entire system.

The disc brake hubs don't have the same flanges that you get on the rim brake hubs - but the flange location is pulled in on the non drive (disc) side to accommodate the disc anyway, so you've only really got the drive side spokes that are slightly outwards. In terms of what this does overall will depend on the frame and fork that you're using - so if you have a well designed disc brake frame then it'll be faster than a badly designed rim brake frame, regardless of any slightly differences in wheels. We don't do wheel only testing when presenting data so don't have a wheel only comparison between rim and disc brake. The hub isn't the only drag reducing factor with an AEOX wheel (overall rim shape, tyre interaction at the brake track, hidden valve are the other main ones) so swapping to a disc hub doesn't kill the wheels, so as to speak.

AeroCoach UK
http://www.aero-coach.co.uk
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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Any plan to offer a ~60mm wheel. Your designs are quite slick, love what you did with the valve. Question: in development did you guys strictly optimize around aero or did you take into consideration the center of pressure and how it changes across yaws?
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Re: Aerocoach new carbon wheels [Xavier] [ In reply to ]
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What is the stability of the Zephyr like as a front wheel? I didn't realise quite how deep it is and thought it was a 60, and as im looking to buy my first set of deep wheels I'm unsure about handling. I know I have a bit of a learning curve with sidewinds etc; as an heavier rider im hoping it wont be too bad, but living in Wales im almost guaranteed windy conditions! I'd like to go Zephyr/Disc, just a little hesitant with the extra depth on the front.

@the.lazy.triathlete
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Re: Aerocoach new carbon wheels [TLT] [ In reply to ]
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I am not sure which front you are talking about 75 or 100mm. Too deep wheel can ruin a race, so use some caution. Probably the best combo is get the 100 front and shop around for a used Jet 5+ (maybe $250 max). Calm day 100. Crappy day 50mm.
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Re: Aerocoach new carbon wheels [grumpier.mike] [ In reply to ]
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Its the 75 I was considering on the front... I think its the Titan wheel which is the 100mm, and I defo wrote that one off as an option lol!

@the.lazy.triathlete
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Re: Aerocoach new carbon wheels [TLT] [ In reply to ]
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TLT wrote:
What is the stability of the Zephyr like as a front wheel? I didn't realise quite how deep it is and thought it was a 60, and as im looking to buy my first set of deep wheels I'm unsure about handling. I know I have a bit of a learning curve with sidewinds etc; as an heavier rider im hoping it wont be too bad, but living in Wales im almost guaranteed windy conditions! I'd like to go Zephyr/Disc, just a little hesitant with the extra depth on the front.


The zephyr wheels are good in windy conditions. The stiffness feels ok. I have a other 90mm wheelset that is much more wind affected and I am a 6ft3 rider.
Used it only once yet du the winter.


Comment my position https://m.youtube.com/watch?v=2spTfinJ72c
Last edited by: rbe: Jan 25, 20 2:04
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Re: Aerocoach new carbon wheels [rbe] [ In reply to ]
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rbe wrote:
TLT wrote:
What is the stability of the Zephyr like as a front wheel? I didn't realise quite how deep it is and thought it was a 60, and as im looking to buy my first set of deep wheels I'm unsure about handling. I know I have a bit of a learning curve with sidewinds etc; as an heavier rider im hoping it wont be too bad, but living in Wales im almost guaranteed windy conditions! I'd like to go Zephyr/Disc, just a little hesitant with the extra depth on the front.


The zephyr wheels are good in windy conditions. The stiffness feels ok. I have a other 90mm wheelset that is much more wind affected and I am a 6ft3 rider.
Used it only once yet du the winter.

Thats good to hear! I ended up pulling the trigger on the Zephyr/Aeox Disc combo and I've just been waiting on them to be built, should hopefully be next month... then i can finally have my tri bike put together! Their Black Friday deal was too good not to take the chance on them. They look lovely on that Felt so hopefully they look just as good on my PR5!

@the.lazy.triathlete
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