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Haha, I’ve seen me take longer than that, nothing quite like that blind bit of panic when you fluff clipping in twice...
If they’re always going to rely on Ant+/Bluetooth then a track crank will always be unfit for purpose in my mind unless they do something different with the data. Perhaps a track specific PM as well as broadcasting on Ant+ as it does now should also be storing the data internally and start recording as soon as torque is applied so that torque and power can be analysed later. |
Originally Posted by carleton
(Post 20182834)
Standing start pickup time has less to do with a head unit "waking up" and more to do with the cranks rotating 2 full rotations (using 1 reed switch). That's how long it takes for a crank to calculate your cadence (time between each rotation). If you can complete 2 full rotations in 1 second, the head unit will start recording then.
2 reed switches helps because instead of 2 rotations being needed, you only need 2 HALF rotations...or 1 rotation :D |
Originally Posted by Monkeyfudger
(Post 20182888)
Haha, I’ve seen me take longer than that, nothing quite like that blind bit of panic when you fluff clipping in twice...
If they’re always going to rely on Ant+/Bluetooth then a track crank will always be unfit for purpose in my mind unless they do something different with the data. Perhaps a track specific PM as well as broadcasting on Ant+ as it does now should also be storing the data internally and start recording as soon as torque is applied so that torque and power can be analysed later. Wired is the way to go if you really care about scientific levels of data collection. Wireless is simply convenient and easy to install.
Originally Posted by jsk
(Post 20182992)
That would be true for magnet-based Cadence sensors, but is it true for accelerometer-based cadence? I know some of the pedal-based PM's supposedly record 30+ readings per crank revolution, I don't see why they would need two revolutions to start recording power.
The way that many head units calculate cadence is that they receive torque readings every so often: - 10NM @ 1:00:30 - 11NM @ 1:00:31 - 11NM @ 1:00:32 - 13NM @ 1:00:33 And then it says, "Thanks for the torque! I see that you (cranks) are sending me (head unit) torque every 1 second based on the elapsed time between each reading. I calculate your cadence to be 60RPM! From there I'll take that 60RPM and that torque and calculate your POWER!" This calculation can be made after 2 readings and updates after every subsequent reading. |
Ever wonder why some riders race international competition in their national team colors and other race for a pro team? Here's a good explanation why: https://www.beatcycling.club/en/blog...have-achieved/
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Originally Posted by carleton
(Post 20183713)
Ever wonder why some riders race international competition in their national team colors and other race for a pro team? Here's a good explanation why: https://www.beatcycling.club/en/blog...have-achieved/
It'd actually be really interesting if trade teams got to compete in Olympiad events or world championships. Like yeah, most of them are largely alt-teams for national squads, but you'd get a wider variety of representation from countries that might have promising athletes but no support or programmes in place to send them abroad otherwise. |
Saw in my email today that Flo Cycling is going to start offering their 6 / 9 wheels in track configuration. Nice option at that price range.
On an aside... I ordered my front Walker Brothers disc at the end of December... and it still hasn't been shipped. They've had some growing pains/family issues, but we're far enough out now that I am beginning to whine online about it... unfortunate because I really like their discs. |
Olympic Speed Skating.
I just saw the 1000m men's race winning time was just under 1m 8s - according to the commentator the guys in this event see 2-1/4 g. In cycling most g-forces are resisted by the saddle whereas in skating all the g-force goes though the legs. It used to be that speed skating was a perfect winter training for track cyclists (e.e. Heiden, Young) - I do not hear that anymore. |
Still its of crossover, at least in the Dutch team Laurine Van Riessen is a member of both the Dutch Olympic long track squad and the national sprint team.
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Apparently this is the new Cervelo T5....not sure if any difference to the GB T5 that was used in Rio? The bars are Hope, nice to see them branching out into track parts - i love their kit for mountain biking.
https://pbs.twimg.com/media/DW4VOmgWkAAIIgY.jpg |
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It looks fast
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Originally Posted by 700wheel
(Post 20187704)
Olympic Speed Skating.
I just saw the 1000m men's race winning time was just under 1m 8s - according to the commentator the guys in this event see 2-1/4 g. In cycling most g-forces are resisted by the saddle whereas in skating all the g-force goes though the legs. It used to be that speed skating was a perfect winter training for track cyclists (e.e. Heiden, Young) - I do not hear that anymore. |
Is there going to be a pursuit specific T5?
The pictures above one has an integrated cockpit and Kenny's has a more "normal" stem/bar. |
Originally Posted by Morelock
(Post 20192534)
Is there going to be a pursuit specific T5?
The pictures above one has an integrated cockpit and Kenny's has a more "normal" stem/bar. |
I am counting a 66x14 combo on Laura's bike -__-
I am also of the opinion that smaller frame won't have the dropped stem/headtube junction for engineering reason. Laura Kenny is 5'4''/1.63m so on 48 or 51cm frame. Meanwhile Katie Archibald is 5'10''/1.78m so probably on 56cm frame. Also if people are willing to share the source for those pictures I would like to have them. I always love to see track tech on instagram, website or even facebook. |
Originally Posted by Godsight
(Post 20193190)
I am counting a 66x14 combo on Laura's bike -__-
I am also of the opinion that smaller frame won't have the dropped stem/headtube junction for engineering reason. Laura Kenny is 5'4''/1.63m so on 48 or 51cm frame. Meanwhile Katie Archibald is 5'10''/1.78m so probably on 56cm frame. Also if people are willing to share the source for those pictures I would like to have them. I always love to see track tech on instagram, website or even facebook. |
Originally Posted by Godsight
(Post 20193190)
I am counting a 66x14 combo on Laura's bike -__-
I am also of the opinion that smaller frame won't have the dropped stem/headtube junction for engineering reason. Laura Kenny is 5'4''/1.63m so on 48 or 51cm frame. Meanwhile Katie Archibald is 5'10''/1.78m so probably on 56cm frame. Also if people are willing to share the source for those pictures I would like to have them. I always love to see track tech on instagram, website or even facebook. |
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Sprint bike looks pretty cool as well, though this is a bit bigger than the two above
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Looks dope.
Seat top area looks precious like it could snap. Didn’t someone break a new LOOK right there? Vogel maybe? Looks long. I like it. Is available for retail sale? |
Originally Posted by carleton
(Post 20195861)
Looks dope.
Seat top area looks precious like it could snap. Didn’t someone break a new LOOK right there? Vogel maybe? Looks long. I like it. Is available for retail sale? |
ahh yes, the ole "it's for sale, but only if you want to fund GBC's next project" tactic :D
I inquired about the CRUX helmet from 2012 olympics long ago... I was sure it was a joke when they emailed me the price. |
lol
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With all of the hype around nylon straps (us sprinters don't get many new things), it should be noted that the freshly minted Team Sprint World Champions all used "old school" NJS straps:
https://i.imgur.com/nZtcZoE.jpg |
Also interesting that the Ned's best sprint team doesn't include any of the Beat guys
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Buschli (I butchered his name) rode in one of the rounds, so he got a jersey.
Interesting that Roy or Bos didn’t ride for sure. I wonder why. |
Originally Posted by carleton
(Post 20197940)
Buschli (I butchered his name) rode in one of the rounds, so he got a jersey.
Interesting that Roy or Bos didn’t ride for sure. I wonder why. |
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