Jack The Rippa’!

February 5, 2010

Photo by OTB Photo

I couldn’t go another day without talking about 20yr old Jack Bobridge breaking the world record for the individual pursuit this week.   And he had only done three track training sessions after the TdU prior to his record.  What a legend!  To be accurate, the world record holder for the pursuit is Chris Boardman but he used the superman position which has been outlawed by the UCI.

What is the individual pursuit?  Well, it’s a deceptively short and simple 4km time trial around a velodrome.  Two riders line up at opposite sides of the track and go for it.  It favors riders who posses excellent aerobic fitness, very high anaerobic capacity and a good pacing strategy (the golden rule – don’t start too hard!).  As you can see from Chris Boardman’s 3 second better time using the superman position, aerodynamics also play a massive part.

The individual pursuit is a predominantly aerobic event and is one of the best ways to measure a cyclist’s speed and endurance.   I’ve never done a pursuit before but from what I hear it’s one of the most sharp and painful events out of all the cycling disciplines.  It’s just short enough to be able to to at a maximal effort for the duration but long enough to keep it going.  The longest 4 minutes of a cyclist’s life!

For you number nerds out there, the power required to pull off a very respectable 4:25min pursuit time is 540watts for the duration of the 4km (height=180cm, weight=75kg, and a bunch of other assumptions).  That’s almost 57km/hr!  Can you go 57km/hr for just over 4mins?

To give you an idea of how much 540watts is for over 4 mins, a good open A Grade (not club A grade) racer would be able to push about 450-480watts for 4 mins.   That’s around 16% difference, which is absolutely massive at this high level.

So why are all these Australian roadies so good?  I believe that it’s because so many developing riders have started on the track.  Track is an embedded part of Australian cycling history and culture.  If you look at the Aussie cycling greats, many of them had their start on the track.  Look at the up and coming riders. Leigh Howard, Glen O’Shea, Rohan Dennis, Cameron and Travis Myer, etc…..they’re all endurance trackies and you see all of them switch back and forth between road and track disciplines while they’re still developing.

Developing the skills required for track events are extremely valuable and are more difficult to acquire later in life. Leg speed, pedaling efficiency, handling, tactics.  Strength can come later in one’s career (the main reason you see gear restrictions in the juniors is to avoid injury while the muscles are still developing and so they learn to spin).  If you watch a roadie who has come up through the track ranks you’ll immediately notice how smooth and efficient their pedaling technique is.  It’s the most basic of skills but so important.

It’s absurd that the individual pursuit has been pulled as an Olympic event in favor of the Omnium.  Who in the general public even knows what an Omnium is?  It’s the decathlon of cycling.  The sport where the winner isn’t particularly great at anything.  The individual pursuit is akin to the 100m sprint in track and field and has a rich and prestigious place in the history books.

I could harp on and on about this issue but Matt Keenan has said it very eloquently here in his blog at Cycling Central.

Have a great weekend, ride safe and just for fun see how long it takes you to ride 4km with a strong tailwind!

  • Guest
    He was super impressive in the 40km points race on Friday night also. Very much like O'Grady. When under pressure attack!!
  • Andrew P
    Wade thanks for the numbers as this gives someone like me a scr vet rider who has been a later adopter of riding who now uses wattage data for training religiously and for me to do a high 300's for 5min is a killer let alone 500+ for 4mins. But everthing you say about track riders could not be more correct, my partner's father from Bendigo who was a very good track rider in his day & is the reason why l got into the sport has told me many stories about what you learn from track racing, especially bike handling & quick effort capcity.

    Cheers

    Andrew P
  • slyrider
    Inspirational. A great role model to show Ozzie roadies that track has a lot to offer. Eloquent write up by Matt Keenan that nails the issues, even if it is a bit of a repeat in many ways of what's been said before.

    One of the guys I train for the IP with commented to me this week, "I'd love to know what that guy's doing for training".

    But the comment that stands out for me from another club mate who's a weapon at the Pursuit was, "I've had the IP described to me as an experience similar to repeatedly sticking a hot needle in your eye." ... ouch!
  • buttsy
    Unbelievable....he is amazing....go Jack!
  • haitch
    Such a shame that they won't let a couple more track events go in the Olympic program. Especially when, say, so many swimming events are allowed to stay in that program when all they seem to do is give Phelps, Thorpe and the like the opportunity to get several gold medals at the same meet. (Admittedly I loathe swimming as a spectator sport so I'm biased, but work with me here people!)
  • Nick B
    The IP is an incredible discipline because it boils down to two things - power and drag. As subsets of those two things is a world of details such as pacing, the tradeoff between drag and position (and the ability to produce power in said position) and if you are a "match" individual pursuiter, tactics.

    There are HEAPS of guys out there who could produce more watts over 4 minutes than Bobridge. Heaps. Just none that can do it with his drag.

    It is such a shame the IP is gone from the Olympics - easily my fav track event.
  • Nice writeup on the requirements needed for such a fast time. I guess what's incredibly impressive is that the average you quote is from a standing start, so the average after the up to speed would have to be a fair bit higher! Wonder if Jack can supersede the older, outdated mark? Surely he's not at his best at 20 years of age! Also, there's a minor typo in your first line - persuit should be pursuit.
  • That is a screaming fast time. Certainly will add a little more interest to the track program at the Comm Games!

    I wonder how many teams will re-think their tactics and attempt to pull this off at the Vic Club Teams Track Championships this weekend...
  • I'm not sure if it's been posted anywhere, but I received a media release last night regarding the team pursuit from the Aussie National Track Champs. If you like racing strategy this might be of interest:

    ========================================
    South Australian tactic pays dividends to secure historic win

    South Australia has claimed the coveted Southcott Cup after a thrilling win in the open men's 4km team pursuit at the Australian Track Championships at Adelaide's Super-Drome.

    The SA team of Jack Bobridge, Rohan Dennis, Dale Parker and James Glasspool posted a blistering Australian Championship record time of 4min00.417sec to defeat defending champions and former record holders Cameron and Travis Meyer, Luke Durbridge and Michael Freiberg of Western Australia.

    It's the first time since 1999 that South Australia has claimed the crown and it comes in the wake of a stunning performance by the state's men in the pursuit events contested so far this week. On day one Jack Bobridge set the fastest time ever under the current international bike regulations for the 4km individual pursuit with Dennis not far off his time in the qualifying round. In the same session Parker set a World Record for the U19 men's 3km pursuit. The fourth member of the team, Glasspool, was the 2009 U19 Australian kilometre champion and is a first year senior.

    Realising Glasspool would be unable to match the pace of his pursuit team mates over the full distance South Australian coach Tim Dekker opted for an unusual pursuit strategy. Dennis started the team and rode one and a quarter laps on the front then swung up for Glasspool who buried himself for three and a quarter laps before he pulled out all together. That combined effort gave the team a first kilometre of 1min04sec, two seconds quicker than their qualifying mark. That left Bobridge, Dennis and Parker to bring it home and they posted sub-minute kilometres all the way to the finish line.

    The tactic also put a lot of pressure on their rivals who were almost a second down after one kilometre. By the halfway mark the Western Australians were close to three seconds slower and they didn't come back from there. Their final time of 4min03.370sec was also under the previous Championships record they set last year but well off the pace of the winners.

    "It is a different tactic and you haven't seen that one exposed yet in the teams pursuit at this level," said a jubilant Bobridge after the race. "It was a bit awkward to start off with at trials last week, but we got it together tonight and all four of us, it is a team effort.

    "To come out and ride on four minutes in the final, we couldn't be happier," said Bobridge. "Maybe we need to get Glasspool on the road and get a few kilometres into him to get another lap out of him, and see if we can get it down to 58, 59."

    Glasspool was thrilled to play a part in the historic win.

    "The plan of attack was that we try something different although we didn't go with the original plan of me starting because they thought I wouldn't be able to hold on," said Glasspool. "So having Rohan start, he built everyone up to speed, and I just had to increase it a little more then by the last three quarters of my effort I had built Jack up and he basically described it as me sling shotting him like a motor bike, so it worked perfectly."

    For the team from Western Australiait means they have lost bragging rights for a year.

    "The last year we sort of knew it would be South Australia versus West Australia in the final and there was a lot of talk going back and forth," said Cameron Meyer. "But they rode four minutes and when I saw the time, I knew there was nothing we could do as it is just a phenomenal time with only three riders with 12 laps to go.

    "Luckily I didn't have to put any bets on, but I have had to eat my words as we gave them a bit of stick before the start and then they made us well and truly look like silver medallists tonight."
  • I saw Jack and Rohan ride against each other in the pursuit final on Tuesday night... they were both a little slower than their qualifying rides (in which Jack broke the WR) but they were both *flying*... absolutely awesome to watch.
    Should mention Dale Parker as well, who broke the U19 3000m World Record on the same day with a time of 3:14.
    Those three guys teamed up with a kilo rider, James Glasspool, and last night they did the teams pursuit in 4:00 -- I wasn't there but apparently they used a very interesting tactic of letting Glasspool ride laps 2,3 and 4 (at super-smash kilo pace) and then he pulled out and let the three enduros bring it home.
  • Future is looking bright for Australian Cycling - Time to get that Aussie PRO Team going.....
  • interesting business plan for the iPetition. They'd get a lot more signings and successful petitions if they found another way of monetizing it without the need to donate.
  • jamiebekkers
    Just post your vote and close the browser on the donate page. You don't need to pay to have your vote recorded.
  • true indeed,. did'nt realise till after I posted - ipetitionpayingforapetition.com
  • krashdavage
    I'm sure Leigh Howard and his supporters would have something to say about your opinion of the Omnium. Being the World Champion and all. I'd say on the contrary you have to be excellent at everything.
  • That boy has got some serious talent! And rippage...
  • Here, Here, with Jack mate - he's already a legend and he's career is just about to take off, great talent to watch and he's a bloody nice guy, always happy to say 'hi' and chat. I agree with you with the Individual Pursuit, the Individual and Team are one of the best events on the track. Also disappointing, the Madison has been removed from the Olympic Calendar as well I believe - go figure, just when the sport is booming, senseless!

    As a suggestion, perhaps the regressive Olympic Committee should consider Cyclo-Cross for Winter games this Feb!
  • Spot on Priestie, he's one of the nicest Australian riders going around.

    His Garmin-Transitions team mates seem to love giving him shit as well! Especially Robbie Hunter. Hazing the new guy I guess :-)
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