How the Rotor 3D Track crank compare to the Dura Ace 7710? Are they in the same league?
Always wondered why I don't see the Rotor often being used at the top events (when SRM is not in use).
Hey I just met you,
and this is crazy,
but here's my Strava,
follow me maybe.
ROTOR cranks haven't proved themselves to have any advantage over Sugino 75, Dura Ace, or Omniums for sprinters and Campy for enduros. But, they haven't proven themselves to be inferior either.
There aren't very many out there. I've only seen photos of one person using them on a track bike (Jack Lindquist). He's a pretty strong/fast guy. And I think there was a young national level woman sprinter in Colorado using them (I can't recall her name).
So, there is no reason not to use them. I think people would rather spend less for one of the standard "known" cranksets listed above. Maybe if ROTOR lowered the price and/or gave them to a few popular riders they would become more popular.
The key thing that makes me still wrinkle my brow over Impreza_Al's position, though, is that it's not quite IAB - his forearms are a long way from parallel. Add to that a hand position that is in all likelihood a good deal less secure than the drops, and, I wince a bit. Impreza, I think you've got better options than what you do now.
i'll figure it out. first half of the season i always in the drops. towards the end i found myself hanging out on top. i just need to lose to the gut.
I had to.
yes i like that!
In totally bad internet etiquette, I'll be the lecture-y new person to the forums. It's not just about aero dynamics, it's a serious safety thing! This video demonstrates the consequences of crashing when on the tops:
To be totally depressingly honest, and ruin the humor in the thread, this issue makes me twitch, as I lost a friend earlier this year from a crash where she went over the bars. Not to imply she was riding on the tops, she wasn't, but going over the bars is a consequence from a crash where you're riding on the tops, and going over the bars is dangerous!! Lots of people go over the bars and are ok, but collar bones are common, etc. Track racing is dangerous enough without people doing silly things to make it more dangerous
IMHO if it's uncomfortable to ride in your drops, fit could be adjusted until flexibility is gained?
I'm not expert in anything track, and I'm very sorry for the digression to seriousness, just felt like I had to say it! Continue with your regularly scheduled humor!! I'll follow internet protocol from now on
I should have clarified that he should be comfortable in the drops...not on the hoods. He's on the hoods probably because he is not comfortable in the drops.
Early on, I never understood why coaches would have me "stay in the drops as much as possible and especially during efforts" on road rides. But it was for this very reason. I notice that early in the training season when doing road efforts (using a HR monitor), for a given effort, my HR will climb 10-20 extra beats per minute when I'm in the drops, meaning that I'm working harder to be there. The reason being is that my muscles never got to relax and get those micro-rests that occur within the pedal stroke. If the muscle is under tension, it cannot relax and rejuvenate for the next stroke. When I incorporate stretching into my regimen, my HR is the same whether I'm in the drops or hoods.
As a sprinter, being comfortable in the drops is my only option.
Also, in the example video above, any rider who is following another gets NO BENEFIT from the "invisible aerobar" position because the guy in front of you is breaking the air for you. Having control of the bike is more important.
THIS scares the sh*t out of me to even watch: Draft Legal Triathlon bike races on a crit course where clip-ons are legal and used even within the pack:
Instead of using 44cm bars with clip-ons attached, why not just use 40cm bars and have control of the bike, brakes, and shifters as well as being aero? Roadies like 44cm bars for waving back and forth during climbing and sprinting (the benefit of which is debatable). But, those don't happen in these sprint triathlons. Narrow road bars would be optimal.
Last edited by carleton; 12-13-13 at 03:39 AM.
I really wonder how they compare to the sprint helmets for aero. They have the great benefit of being able to use them for mass start, road etc as well. With my low riding position due to longer legs, I find with a road helmet and glasses, I'm often looking over or under the frame of my glasses. It's really annoying at times and the attached lens on the Giro I'm hoping would solve this.
Slowtwitch says the LG course or whatever it is tests consistently faster at 0 yaw, i don't remember who's testing it was though. I'm really interested in seeing the numbers for the specialized evade, and i'd love to get my hands on an air attack and an evade to do coast down tests with. I'll probably end up taking a swag based on other people's data though.
Do you think we're gonna make it? / I don't know unless we try \ you could sit here scared to move / or we could take them by surprise
That said, I'll bet there isn't an apreciable aero difference between the three in real world (mass start) use. I picked the Air Attach for the shield... love not wearing glasses.
Does anyone here have first hand experience with the Sphynx (sp?) bars?
The majority of people at my local track use the Sphynx position with normal drop bars, yet the only guy who rides them (fantastic rider, has won the league four years in a row), is the only guy who doesn't ride the position.
(I don't plan on buying any, but it seems odd that the only person who has them at my track, is the only one who doesn't use that position)
The only time I've seen them used was by a new-ish Cat3 racer (we combined categories for a 1/2/3 field) who insisted on using the bar "hoods" even while swerving up and down all over the track.
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
They were pretty much a "flash in the pan" fad that had very limited uses. Now they are all but banned by the UCI, so only local racers use them. I don't think I heard anyone actually say that they really liked them. Every time that I saw them, the guy was simply evaluating them.
I'm riding a 130 SRM/Rotor. Nice crank. Not any difference in feel from the Shimano 144 I used or the FSA I had. The extra $$$ come from a lot of machining to make them light for the road crowd. YMMV, I'm not a huge watts guy and a 150-160# all arounder.
You're also using the muscle in a different extension when in the drops. This creates additional oxygen demand because you're making "untrained" fibers work.
And depending on your position, you could also be impacting the diaphragm muscles which means your breathing capacity is impacted as well because shallower breath expose less lung surface for transfer.
Train like you race.
FWIW, I use the IAB a lot. It's a good position to leverage off of and I can get pretty efficient. Never use it on the track though, and in crits only when I'm at the front of the line. It's a nice way to make those folks behind you work a bit harder; if I'm leading a teammate, or someone I want to keep in a break I'll ride in the drops or even on the hoods.
Bucket load of my IAB in here:
I was flatting out leading out with two to go. Came through the corner and realized I was pretty much on the rim.
Last edited by Racer Ex; 12-12-13 at 07:11 PM.