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Hour Record Rules Revisted/Revised

From the kilo to the hour record, if it's on the velodrome it goes in here

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Re: Hour Record Rules Revisted/Revised

19 Apr 2015 06:48

oldcrank wrote:If Alex beats Rohan's record I think there
will be a fair amount of interest in how
fast Sir Brad rides the 10 mile TT on the
fast V718 course on May 16 because the
current British 10 record is also Alex's.

Rightly or wrongly, many (including me :) )
will try to make some extrapolation from
their respective 10 mile times to what Sir
Brad might achieve in his Hour.


brad will knock it out of the park, p'raps phinney might take a look at it in the future
User avatar blackcat
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19 Apr 2015 08:33

Head to head ITT results for Dennis and Wiggins in 2014 include Tour of California and World Championships.

TOC 2014:
Stage 2
Monday, May 12 2014
20.1km Folsom (ITT)
1 Bradley Wiggins (GBr) Team Sky 23:18:27
2 Rohan Dennis (Aus) Garmin Sharp +0:00:44

UCI World Road Championships 2014
24 September 2014
Ponferrada Spain, 47.10km
1 United Kingdom Bradley Wiggins (GBR) 56' 25.52"
5 Australia Rohan Dennis (AUS) + 57.74"
User avatar Alex Simmons/RST
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Re: Hour Record Rules Revisted/Revised

21 Apr 2015 10:33

I notice Alex D is riding a converted time trial bike and not the aluminum track frame that Canyon produces. That means Wiggins will be the first hour attempt on a track bike. I saw Alex did a five hour ride the other day. I personally don't feel that kind of training helps, although it does refresh the mind.
Shame
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23 Apr 2015 00:24

Bobridge rode a track bike, Dennis rode a track bike.
twothirds
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Re: Hour Record Rules Revisted/Revised

23 Apr 2015 12:26

Converted to track bike. A one-off is not the same. even though the main difference is just to make the rear narrow enough for a track hub. There are a lot of companies that do not have a top of the line track frame. They usually invest their money into triathlon and time trial frames. There are only a few big names in track cycling: Look, Felt, Cervelo, Pina.

It isn't that big of a deal to me.

I heard Ben King would love to go for the American record, as would Phinney.
Shame
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Re: Hour Record Rules Revisted/Revised

23 Apr 2015 17:39

Shame wrote:Converted to track bike. A one-off is not the same. even though the main difference is just to make the rear narrow enough for a track hub. .........................


Trek modified a road bike for Jens Voigt but I believe they did not modify the rear spacing much, if at all, because he used a specially machined off-set rear cog.
avanti
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Re: Hour Record Rules Revisted/Revised

24 Apr 2015 00:54

avanti wrote:
Shame wrote:Converted to track bike. A one-off is not the same. even though the main difference is just to make the rear narrow enough for a track hub. .........................


Trek modified a road bike for Jens Voigt but I believe they did not modify the rear spacing much, if at all, because he used a specially machined off-set rear cog.


Bobridge's Cervelo was a stock model (T4) you can buy. Rohan's bike is a a BMC TrackMachine TR01 that you can also buy. His bike had a modified cog so that he could use the road crankset that he's used to, which also housed an SRM unit, along with a custom cockpit. Both track bikes, not converted.
twothirds
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Re: Hour Record Rules Revisted/Revised

24 Apr 2015 11:03

Thanks for correcting me on Bobridge and his Cervelo.

As for Rohan:
Dennis' TR01 has been modified at BMC’s Impec Advanced R&D lab to improve its aerodynamics and stiffness.
Shame
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24 Apr 2015 23:39

Yes. The only structural modification to the frameset is that they modified the front fork/handlebar cockpit. The 3T handlebars were carbon wrapped to the stem/fork that comes standard on the bike. This is what was done to "improve aerodynamics and stiffness". You can see it here - http://www.bikeradar.com/road/gear/article/rohan-dennis-hour-record-bmc-trackmachine-tr01-updated-43546/. The other non-stock/custom piece was the custom machined rear cog. This was done to keep a perfect chainline with the Shimano Dura-Ace Road SRM crank. Still a stock track frame.
twothirds
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25 Apr 2015 00:31

Some relevant UCI rules for hour record, complete with holes large enough to drive a truck through:

3.5.008
Records must be set on a UCI-approved track.
Only bicycles admitted by the Track Race Regulations may be used.
A starting block shall be used in all specialities with a standing start, including the hour record.

3.5.027
The bicycle shall be submitted to the Equipment Commission for approval 15 days before the date of the attempt.

1.3.002
EQUIPMENT
<snip>
A licence holder is not authorised to modify, in any way, the equipment given by the manufacturer used in competition.

1.3.007
Principles
Definition
The bicycle is a vehicle with two wheels of equal diameter. The front wheel shall be steerable; the rear wheel shall be driven through a system comprising pedals and a chain.
Type
Bicycles and their accessories shall be of a type that is sold for use by anyone practising cycling as a sport.
As a result of production imperatives (time constraints), an exception may be requested from the UCI for equipment that is a final product and that will be marketed in the nine months after its first use in competition. The manufacturer must however publish information on the equipment in question in advance and announce the date of its market launch.
The use of equipment designed especially for the attainment of a particular performance (record or other) shall be not authorised.
User avatar Alex Simmons/RST
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25 Apr 2015 03:09

And this is what gets me so mad about these pros riding one offs. I mentioned it before in the thread and think that they should enforce rules if they're going to bother making them.
twothirds
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25 Apr 2015 03:13

The only workaround I can see is with Rohan's fork/stem/bar combo. If they were all stock components that were "glassed" together, then it's just like taking a carbon stem and carbon bars to someone like Calfee or VeloZephyr and having them glassed together. My guess is that those options are legal, so glassing together his cockpit should be as well if that's the case. The custom cog could have been sourced out and purchased if a suitable option exists, as there are cogs that make for differing chainlines.
twothirds
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25 Apr 2015 03:17

The only workaround I can see is with Rohan's fork/stem/bar combo. If they were all stock components that were "glassed" together, then it's just like taking a carbon stem and carbon bars to someone like Calfee or VeloZephyr and having them glassed together. My guess is that those options are legal, so glassing together his cockpit should be as well if that's the case. The custom cog could have been sourced out and purchased if a suitable option exists, as there are cogs that make for differing chainlines.
twothirds
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Re: Hour Record Rules Revisted/Revised

25 Apr 2015 11:53

The one off doesn't bother me. I just think it would be good if any rider in any country can purchase the same quality of frame. If I were Bobridge, I think I would have asked Cervelo if they could produce a one off T5 frame. Cervelo brags the drag is 2056 on its P5. (Also, the numbers may have been measured with the non-legal fork.)They claim a savings of "6-11 watts" or "24 to 44 seconds over 40 km" over super- bikes.

I just found their 'launch' information pdf:

P5 2056 grams 33 seconds faster over 50km or 458 meters further.

P4 2122 grams
Shame
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Re:

25 Apr 2015 14:44

Alex Simmons/RST wrote:1.3.002
EQUIPMENT
<snip>
A licence holder is not authorised to modify, in any way, the equipment given by the manufacturer used in competition.


Appears that someone other than a licence holder can modify equipment??????????
avanti
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Re: Re:

25 Apr 2015 21:48

avanti wrote:
Alex Simmons/RST wrote:1.3.002
EQUIPMENT
<snip>
A licence holder is not authorised to modify, in any way, the equipment given by the manufacturer used in competition.


Appears that someone other than a licence holder can modify equipment??????????

Like I said, complete with holes one can drive a truck through.
User avatar Alex Simmons/RST
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Re: Hour Record Rules Revisted/Revised

27 Apr 2015 21:46

Just watching Alex a bit. He did a long slow ride on saturday, presumably recovery or after a track workout. Roughly 50 miles at 200 watts and fairly flat. Sunday he did 10 half-mile hill sprints. Avg watts: 470, 420, 450, 445, 340, 450, 430, 440, 425, 345.
Looking forward to next week.
Shame
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01 May 2015 21:09

Will Alex Dowsett's hour attempt on May 2 be streamed in the USA?
avanti
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01 May 2015 22:11

I don't know who's carrying it.
I'll check for streams in the morning.
I'm not even sure what time it will run.
I can always watch the replay, it isn't like trying not to hear who won the Super Bowl.
Personally, I don't think he'll do it. I just hope he gets his pace right.
Better slow than dead for 59 minutes. (Right Bobridge?)
Shame
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02 May 2015 06:24

It's at 2 pm CET. I don't know about USA but Eurosport 2 will start coverage 1:45 PM (CET).

I'm looking forward to it.
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