Your TT position - pics

Jeff Jones

Matt, it looks very good to me. I'd try it for a few races and see how you get on. Let us know if your times improve.

Anonymous

My daughter in TT mode-

Aggieboy

NapoleonD wrote:

My daughter in TT mode-

At least she's stayed on the bike!!!

Anonymous

Funny you should say that! Two minutes later her little sister came off hers and cut her arm and knee heh heh.

Aggieboy

Well, I'm sure all the hereditary swearing will have calmed her down.



Hope she's OK and you're on the mend. I'm sure you'll be back on the road soon, albeit not racing. Took me 2 years after going through a car windscreen, but even I couldn't resist. I couldn't even sit as a passenger in a car for a while w/o being a true nervous wreck.

Good luck anyway, make sure you're back at work before 6 months!

Anonymous

Heh heh, she spoke Justin bieber's name in vain!

I'm going to be ok. Op has hopefully sorted shoulder although it freaking wrecks at the moment, consultant said it was a right mess Inside when he opened me up.
Worried about my back though, and impact on movement/flexibility.

I'm still hoping to be TTing and one day hope to have a photograph of me doing it to post on here!

hopper1

Me on Monday... Just happened to glance down as the photographer clicked!
Still adjusting to the Adamo...

hopper1

NapoleonD wrote:

Heh heh, she spoke Justin bieber's name in vain!

I'm going to be ok. Op has hopefully sorted shoulder although it freaking wrecks at the moment, constant said it was a right mess Inside when he opened me up.
Worried about my back though, and impact on movement/flexibility.

I'm still hoping to be TTing and one day hope to have a photograph of me doing it to post on here!

WTF!!!... Have I missed something here, Nap?
What happened?

Anonymous

Landed on my head/ left shoulder in an unavoidable crash in a race. Went over the handlebars at 28mph.
Broke collar bone in 3 places plus lots of little chips off. Compression fracture to T11 vertebrae plus lot of muscular damage.
Brand new Helmet completely did it's job, no head injuries at all.
Given up racing/fast group rides now.
Will ride socially and do the local club 10s.

Jeff Jones

hopper1 wrote:

Me on Monday... Just happened to glance down as the photographer clicked!
Still adjusting to the Adamo...

Still looks pretty good and yes, the Adamo takes ages to get right (but it's worth it).

One thing: you do look to have quite a forward position. How's the comfort on longer rides?

hopper1

Not tried a 25 on the Adamo, yet!
Going to move my elbow cups back a bit, to see if that helps me sit back, as the saddle is now in a good position.
Will update, later...

RChung

Dr. Jones,

Could you please examine this photo and tell me where it would be possible to find 4 sec/km?

http://www.cyclingnews.com/races/75th-t ... tos/178574

Watts/kg is pretty close to this guy, so the difference must be watts/CdA.

http://www.cyclingnews.com/races/75th-t ... tos/178576

Actually, an eighth of a sec per km would have been okay, too.

Jeff Jones

RChung wrote:

Dr. Jones,

Could you please examine this photo and tell me where it would be possible to find 4 sec/km?

http://www.cyclingnews.com/races/75th-t ... tos/178574

Watts/kg is pretty close to this guy, so the difference must be watts/CdA.

http://www.cyclingnews.com/races/75th-t ... tos/178576

Actually, an eighth of a sec per km would have been okay, too.

1) Cunego was tired

2) Cunego's head position isn't helping matters

3) Cunego's bottle is standard, not aero

4) Cunego's arms are a little wide for a small guy but he might have tested this. His position looks pretty good otherwise

5) Cunego's gloves aren't aero (?)

RChung

Jeff Jones wrote:

RChung wrote:

Actually, an eighth of a sec per km would have been okay, too.

3) Cunego's bottle is standard, not aero

An eighth of a second per km at these speeds would be less than the difference between an aero and standard bottle, or an aero and standard brake, or an aero and standard tire. Usually we talk about body positioning, and rightly so, but this looks like a situation where better choices about passive equipment could very possibly have had large consequences.

If I read the results right, yesterday the gap between 7th, 8th, and 9th places in the Nat 50 was about a twelfth of a second per km.

Jeff Jones

RChung wrote:

Jeff Jones wrote:

RChung wrote:

Actually, an eighth of a sec per km would have been okay, too.

3) Cunego's bottle is standard, not aero

An eighth of a second per km at these speeds would be less than the difference between an aero and standard bottle, or an aero and standard brake, or an aero and standard tire. Usually we talk about body positioning, and rightly so, but this looks like a situation where better choices about passive equipment could very possibly have had large consequences.

If I read the results right, yesterday the gap between 7th, 8th, and 9th places in the Nat 50 was about a twelfth of a second per km.

I agree - small things make a big difference and given the gap in this case, it looks like Cunego might have thrown it away.

Point taken about the national 50 - it was close and equipment choices could easily have affected placings (ignoring other uncontrollables such as traffic, wind, temperature, traffic at roundabouts - most of which were related to start time). I made a small one (rode a 404 instead of an 808) that in hindsight probably wasn't necessary, and might have cost me a watt or two and maybe a place. But that's part of the race.

The gap between 1st and 2nd was a mere 1/5 sec/km. That could have just been down to pacing.

freehub

Ok.

So I'm tinkering with the position, and I've got some sort of TT position, but trying to make it better.

Here is a series of pics, not the best, most of em my front end is a little high, so the last 2 pics I've just put the front end on the bricks.









Now If needed I can lower the stem down by 15mm as I've got a large spacer under there.

Does the saddle need to be a little higher? It's already a cm higher than I have it for normal road riding as well as the seat is all the way forward, for normal road riding it's an extra inch back, but with it forward I can actually get on the TT bars, I could not do this with my 56cm frame as the frame was too big.

**note** My knees ain't hitting my elbows.

Any advice would be great thanks.

Jeff Jones

Looks good to me Will. I wouldn't put the saddle up any more (my TT bike saddle is actually a bit lower than my road saddle)

I'd ride it like that for a few weeks then experiemnt with dropping the front end by a cm.

Surfr

First photo in the wild of me in the TT position. I know it's not great as they've chopped my feet off but any obvious issues given that this is my road bike as well as my TT machine?

amck111

I bought a TT bike, read this thread, set my bike up accordingly, and raced a couple of TTs! Here's a snap from Sunday, not the greatest photo for this purpose but all feedback welcomed! Thanks, Alan.

a_n_t

Just copy this, sorted!

Jeff Jones

amck111 wrote:

I bought a TT bike, read this thread, set my bike up accordingly, and raced a couple of TTs! Here's a snap from Sunday, not the greatest photo for this purpose but all feedback welcomed! Thanks, Alan.

Narrow your elbows

amck111

Thanks Jeff, I shall!

Surfr

Bah. 3 weeks since posting my photos and nobody comments, and now others get responses in hours! I'm not hurt, honest *sniff*

Jeff Jones

Surfr wrote:

Bah. 3 weeks since posting my photos and nobody comments, and now others get responses in hours! I'm not hurt, honest *sniff*

Lol Your head/body should be as close to one shape as possible, not two. You look a wee bit high and stretched but that's probably because you're on a road bike.

Surfr

Right. not sure I understand the 'one shape' idea. Here's a couple more photos from the Welsh 100 this weekend and a club 22 last week.

Old saddle and position


New (improved?) Adamo and inline post position




And finally a propper side on shot from the 100

Any better?

freehub

Not a pic but I've done a video or two.

Mute the sound.

Position 1:

http://www.youtube.com/watch?v=NqUfqkl2 ... re=related

Position after:

http://www.youtube.com/watch?v=z8bEfBAnA3g

Jeff Jones

Surfr wrote:

Right. not sure I understand the 'one shape' idea. Here's a couple more photos from the Welsh 100 this weekend and a club 22 last week.

Any better?

A bit - you still look too high to me

Head and body one shape: look at Tony Martin at the top of this page or Wouter Sybrandy on P1 of this thread. They have a far smoother line between helmet and back. You don't want to make the air work any harder than it has to.

Jeff Jones

freehub wrote:

Position after:

http://www.youtube.com/watch?v=z8bEfBAnA3g

Pretty good, maybe a touch low at the front but only a cm in it. Leave it until you get used to it.

You're rocking when you put the power down - this is not ideal as you're disrupting the air flow more than you would if your upper body was still. Not sure if this is because your saddle is a bit high or if you're just going flat out. Something to work on over time.

Look at how smooth Matt Bottrill is in this video http://www.youtube.com/watch?feature=pl ... iHZhek_THY

freehub

The rocking/bouncing is due to the cadence, when the cadence gets high I struggle to stay still, also take into account the whole rig is rocking due to the patch.

I'm surprised it's abit low, I've lowered it by 1.5cm today, but over at TT forum they reckon I could get much lower.

I actually tried it lower the other day, same as it is now, but saddle was abit lower, and I was struggling to get power, infact, when I raised it back up 1.5cm I was going as fast into a headwind as I was going with a tailwind and the bars lowered.

Or are my hips actually rocking?

Jeff Jones

freehub wrote:

The rocking/bouncing is due to the cadence, when the cadence gets high I struggle to stay still, also take into account the whole rig is rocking due to the patch.

I'm surprised it's abit low, I've lowered it by 1.5cm today, but over at TT forum they reckon I could get much lower.

I actually tried it lower the other day, same as it is now, but saddle was abit lower, and I was struggling to get power, infact, when I raised it back up 1.5cm I was going as fast into a headwind as I was going with a tailwind and the bars lowered.

Or are my hips actually rocking?

Don't ride at too high a cadence then (you probably don't in a TT anyway).

To me in that vid your torso looks flat, maybe even pointing down a bit, so I wouldn't go lower. Just my opinion of course, you don't have to take it on board.

Power is key but you have to give yourself a couple of weeks to adapt to any new position so changing things every day will not give you a definitive answer.

Overall it looks ok to me. Do a few races on it and see how you get on.