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Re: Help me make the worlds fastest triathlon bike even better [rruff] [ In reply to ]
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rruff wrote:
I really appreciate you sharing your info!

The link has a problem though: "Unable to retrieve file: The path is incorrect, or the public link has expired"

That was bad luck. It worked when I posted it. Now I have put them in a dropbox folder and they should be able to view here: https://www.dropbox.com/...3y3fXe4y2THpYia?dl=0

3 x Norseman winner - http://www.triallan.com
Ambassador of:
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Re: Help me make the worlds fastest triathlon bike even better [LAI] [ In reply to ]
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LAI wrote:
longtrousers wrote:
-how is the holder of the torhans? (I heard some aero holders are insecure at vibrations and the xlab seems to be very stable)

I've been running the Felt version on my Da since it's inception (had a teammate that hated it and gifted it to me). I've done maybe 20-30 Time Trials with it varying road conditions from perfect to horrible) and at least 1000 miles one the road (~300 of which were on Minneapolis's crappy roads). I've always had my doubts about bottle security with the VR so I always pull it when traveling with the bike on the rack. That being said, when I loaned the VR to Kiley for his shootout and specifically tell him to pull it from the cage when he drives home he forgets....he makes it from Mooresville NC to Philly without losing the bottle, though. I've also found me some nasty potholes that have launched BTS bottles and knocked me out of my pads, but yet the VR holds firm.

I doubt i'll be driving with the VR in the holder any time soon, but my doubts about losing the bottle during a ride/race all disappeared a long time ago. It's not even a thought anymore.

Thanks for the information.
I managed to order the Torhans VR from Torhans USA, they ship it to Europe within 2 or 6 weeks for $25.
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Re: Help me make the worlds fastest triathlon bike even better [longtrousers] [ In reply to ]
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longtrousers wrote:
-how is the holder of the torhans? (I heard some aero holders are insecure at vibrations and the xlab seems to be very stable)

I've never tried one and I know LAI has praised the bottle holder but this Instagram post by matthansontri himself suggests that it is indeed a possibility to launch the bottle: https://www.instagram.com/p/Bq98TpdBAby/
Last edited by: Rachela: Dec 7, 18 5:01
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Re: Help me make the worlds fastest triathlon bike even better [longtrousers] [ In reply to ]
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I have had zero issues with the bottle and holder coming lose in any race I have done the last 4 years. Not sure if I did it or it came that way but there is Velcro on the holder then the bottle to keep it more secure.

My Blog - Twitter - Instagram - JonnyO Coaching - ICE Friction - SLF Motion - Greater Than Sports Drink -
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Re: Help me make the worlds fastest triathlon bike even better [Rachela] [ In reply to ]
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Rachela wrote:
longtrousers wrote:
-how is the holder of the torhans? (I heard some aero holders are insecure at vibrations and the xlab seems to be very stable)

I've never tried one and I know LAI has praised the bottle holder but this Instagram post by matthansontri himself suggests that it is indeed a possibility to launch the bottle: https://www.instagram.com/p/Bq98TpdBAby/

Hahaha, that's awesome.

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Re: Help me make the worlds fastest triathlon bike even better [Allanhov] [ In reply to ]
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Thanks for posting the complete report and associated pictures.

Great to see how such a session can be done in details, with associated output.

Give us some news from Patagonia !
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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matthansontri wrote:
The angle on the bottle I have behind my seat was the biggest savings I found. Once Jim helped me get the angle correct, it was a very nice drop in cda.

I did some instagram stalking and couldn't see any difference over the past couple years - care to share general observations? Your BTS set up is definitely lower and more vertical than the eyeball test prefers...
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Re: Help me make the worlds fastest triathlon bike even better [JASpencer] [ In reply to ]
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I have not changed the bottle angle since 2015 when I tested in the velodrome for the second time in 2016 and the numbers from that bottle placement were replicated. The current placement was a 2.2w savings over any other placement. However, I switched saddles in 2017 so will be retesting this in January. I had different results than others with bottle placement...I'm no expert by any means, but I trust the numbers over the "eyeball test." If I had to guess, Id say it relates to how the rider sits on the saddle. I ride a split nose saddle and sit farther forward on that than many.

Like I said, all things will be retested in January, but until then I run my set up based on the numbers I have.

---
http://www.matthansontri.com
http://www.matthansoncoaching.com
Contact me to save $100 at Normatec and 25% off Zone3 USA
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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Yep - I just didn't go far enough back. Thanks!
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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Regarding the TorHans downtube bottle. Your blog said it was neutral and here you said it was negative, or was it within the noise, or did you not want to give away your secerts? Did you have any theories as to why the 1x wasn't faster?
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Re: Help me make the worlds fastest triathlon bike even better [Allanhov] [ In reply to ]
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Hei Allan
Dette er moro. Tusen takk for at du deler dine erfaringer.
Du vil finne mange brønnpissere her på ST, men jeg vet at mange også setter stor pris på din åpenhet og at du deler av dine kunnskaper.
Jeg har nå flyttet til Norge (Fjellhamar) så vi vil nok sees snart.
Ha en fin jul der du er nå.

Thanks for sharing. Even though some people will always be grumpy. I know most of us are really happy you are sharing your journey and data.

Member of Valhalla Racing Team
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Re: Help me make the worlds fastest triathlon bike even better [Nazgul350r] [ In reply to ]
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The Aero Z BTA was neutral, the VR series bottle was a 2.4w savings after I made my own holes for the bracket.

Jim at ERO speculated that the 1x was slower because it created a bigger gap between the big chain ring and the frame that is filled by the small chain ring allowing an Eddy current. Yes, I took the FD off as well as the hangar and plugged all holes, etc and it was still slower. We were all quite surprised by the result. I have seen some frames test faster with 1x, but mine did not.

---
http://www.matthansontri.com
http://www.matthansoncoaching.com
Contact me to save $100 at Normatec and 25% off Zone3 USA
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Re: Help me make the worlds fastest triathlon bike even better [Halvard] [ In reply to ]
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Yep,

and congrats for Patagonia result.
Don't hesitate to share your feedback from Patagonia, including pictures and the feedback on Morftec use !
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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thanks for the reply, I'm running a PR6 as well and found the 1x result curious.
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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I saw your new wind tunnel Instagram, what BTA set up are you running now? Looks like the Giant system almost.
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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matthansontri wrote:
I have seen some frames test faster with 1x, but mine did not.

Most likely something else changed.
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Re: Help me make the worlds fastest triathlon bike even better [Allanhov] [ In reply to ]
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this pains me...


Allanhov wrote:
I apologize for my lack of response, but I had a lot that absolutely needed to be done (like getting my bike in actual riding condition) before traveling one month to Patagonia and the Patagonman.

I said I would share everything and be transparent so here is my full results from the wind tunnel: https://www.dropbox.com/...3y3fXe4y2THpYia?dl=0 (UPDATED WITH A WORKING LINK)

The "Allan Hovda Aerofit 21 November" is the numbers and the data and the file below contains all the pictures from the test. If anything was unclear just ask.

Btw, if anyone wonders why I tested the Castelli Gabba jacket vs Santini Beta it is the options I have for Norseman where you need warmer clothing.


Eric Reid
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Chapel Hill, NC
Aerodynamic Optimized Bike Fitting, Retul Pre-Purchase Bike Fitting, USAT Level 1 Triathlon Coaching, Nutrition
Ask me: Scody Optimized Speed Suits | CeramicSpeed Oversized Pulley Systems | HUUB Skinsuits and Wetsuits | Ventum Bicycles and Frames
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Re: Help me make the worlds fastest triathlon bike even better [ericMPro] [ In reply to ]
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Agreed! I can feel my triceps burning just looking at it.

ericMPro wrote:
this pains me...


Allanhov wrote:
I apologize for my lack of response, but I had a lot that absolutely needed to be done (like getting my bike in actual riding condition) before traveling one month to Patagonia and the Patagonman.

I said I would share everything and be transparent so here is my full results from the wind tunnel: https://www.dropbox.com/...3y3fXe4y2THpYia?dl=0 (UPDATED WITH A WORKING LINK)

The "Allan Hovda Aerofit 21 November" is the numbers and the data and the file below contains all the pictures from the test. If anything was unclear just ask.

Btw, if anyone wonders why I tested the Castelli Gabba jacket vs Santini Beta it is the options I have for Norseman where you need warmer clothing.


My YouTubes

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Re: Help me make the worlds fastest triathlon bike even better [ericMPro] [ In reply to ]
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What about it pains you?


ericMPro wrote:
this pains me...


Allanhov wrote:
I apologize for my lack of response, but I had a lot that absolutely needed to be done (like getting my bike in actual riding condition) before traveling one month to Patagonia and the Patagonman.

I said I would share everything and be transparent so here is my full results from the wind tunnel: https://www.dropbox.com/...3y3fXe4y2THpYia?dl=0 (UPDATED WITH A WORKING LINK)

The "Allan Hovda Aerofit 21 November" is the numbers and the data and the file below contains all the pictures from the test. If anything was unclear just ask.

Btw, if anyone wonders why I tested the Castelli Gabba jacket vs Santini Beta it is the options I have for Norseman where you need warmer clothing.


3 x Norseman winner - http://www.triallan.com
Ambassador of:
Quintana Roo - https://quintanarootri.com
Morf-Tech - http://www.morf-tech.com
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Re: Help me make the worlds fastest triathlon bike even better [matthansontri] [ In reply to ]
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1x is probably slower or neutral on QR frames that employ their "shift" technology - moves airflow from the drive side to NDS around the BB area...
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Re: Help me make the worlds fastest triathlon bike even better [Allanhov] [ In reply to ]
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Probably the elbows right below the shoulders in the picture (same for LAI). They both favor more reach, elbow and hand much forward.

Personally I can't handle this position (in your picture), it really hurt. I also prefer to move the elbows (and the hands) several centimeter forward. More comfortable for me, and apparently more powerful, and more aero (increased arm section length).
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Re: Help me make the worlds fastest triathlon bike even better [SAvan] [ In reply to ]
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SAvan wrote:
1x is probably slower or neutral on QR frames that employ their "shift" technology - moves airflow from the drive side to NDS around the BB area...

Still doesn't makes sense. Removing blunt objects from the airstream should still be a win. Granted there could be esoteric interference effects, but I wouldn't believe it without a lot of ABABAB testing, to get a degree of confidence that is less than the measurement error.
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