"The 33"-Road Bike Racing - How's my TT fit?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.




View Full Version : How's my TT fit?


procrit
07-15-09, 11:59 AM
I just set it up based on feel, and after I took some pictures I dropped the bars an inch, which should be a little flatter. Any rules of thumb? Anything other than not being quite flat enough jump out at you guys?


Jynx
07-15-09, 12:05 PM
looks pretty good. like you say you can go lower and longer but it looks good as is.

procrit
07-15-09, 01:10 PM
Cool. I have a couple weeks to dial it in fully. Feels fast so far though.


Nate552
07-15-09, 03:16 PM
Well, some of the angle stuff concerning your hip is kinda hard to use because your crank arm is not perpendicular to the floor. But I'd try to go lower in the front if you can, it looks like you can with your stem/spacer set up. Is that how you plan on holding your head during the TT? Could you try "rolling" your shoulders forward a bit and "turtleing" your head to create a smaller frontal area? What about a shot from the front? Are you arms protecting your hips? Sounds like you're doing State? See ya there.

waterrockets
07-15-09, 05:39 PM
Well, some of the angle stuff concerning your hip is kinda hard to use because your crank arm is not perpendicular to the floor. But I'd try to go lower in the front if you can, it looks like you can with your stem/spacer set up. Is that how you plan on holding your head during the TT? Could you try "rolling" your shoulders forward a bit and "turtleing" your head to create a smaller frontal area? What about a shot from the front? Are you arms protecting your hips? Sounds like you're doing State? See ya there.

+1 to a shot from the front.

I think it's easier to judge hip angle when the crank arm is pointing directly away from the hip (not perpendicular to the floor).

DrWJODonnell
07-15-09, 06:42 PM
thats not bad. Second shot from front would be nice and while there are ways to improve it, it seems like a decent start and a position that will be easy to acclimate to.

procrit
07-15-09, 07:03 PM
I'll take a shot at the front tomorrow night. I have to reassemble my road bike tonight, what fun, so I won't get a chance to set it all up. My wife says the bike parts have to get out of her kitchen.

My arms protect my legs pretty well, but I had to spread out my arm rests a little further than I'd like in order to help get rid of some of the burning in my shoulders. So now the inside of my knee/quad isn't protected very well, but the outside half is covered.

Nate, I am doing state this year. I am hoping to hit 58' with the right wind conditions, but we'll see. Have you ridden the course yet?

waterrockets
07-15-09, 07:52 PM
Yeah, the other thing you need to look out for is trapping air against your abdomen and groin with your arms. Best to cut it off before it gets in there.

ccrnnr9
07-15-09, 08:28 PM
I think it's really hard to tell with one picture, but my take is that you don't need to be "out" as much as you need to be "down." The fit looks good in the sense that it allows you to breathe and likely produce good power but you could likely be more aero by tilting the bars down and figuring out a way to get more drop from the nose of your saddle to your bar tops.

As far as the position of your leg, it looks perfect. You wouldn't want to have the pedal perpendicular to the floor as someone else asserted. It needs to be even with the seat tube like you have it there.
~Nick

ElJamoquio
07-15-09, 08:54 PM
Needs more socks.

cat4ever
07-15-09, 09:30 PM
If you are just sitting on your bike to take a picture, it's meaningless. Dial 'er on up to (insert obtuse wattage number here) then take the picture. Your position will be much different at race pace than a static picture.

That being said, lower your saddle. :innocent:

Nate552
07-16-09, 07:09 AM
As far as the position of your leg, it looks perfect. You wouldn't want to have the pedal perpendicular to the floor as someone else asserted. It needs to be even with the seat tube like you have it there.
~Nick

It's true that "Bottom-Dead-Center" of a pedal stroke is not truly when it's perpendicular to the ground, but it's close. I think it's closer to a 5:25 position. Which looking back at his picture it's pretty dang close, my fault. Of course it also depends on how much heel drop there is which is easier to see in a video.



Nate, I am doing state this year. I am hoping to hit 58' with the right wind conditions, but we'll see. Have you ridden the course yet?

58' would be fast man! What's that avg speed, like 27 mph? I'm hoping for a 59'. I haven't ridden the course, it's a bit far from Tyler, but I"m hoping to get a better idea of my 40K effort with the Mineral Wells TT next weekend. Speaking of wind conditions, did you get your front wheel built?

Racer Ex
07-16-09, 07:15 AM
I predict a 52 for the WR/EX/Fat Daddy/TB Express.

waterrockets
07-16-09, 07:20 AM
That will be a lot more realistic once I shed the weight of several organs that my body will surely reject due to loss of oxygen.

procrit
07-16-09, 08:45 AM
It's true that "Bottom-Dead-Center" of a pedal stroke is not truly when it's perpendicular to the ground, but it's close. I think it's closer to a 5:25 position. Which looking back at his picture it's pretty dang close, my fault. Of course it also depends on how much heel drop there is which is easier to see in a video.

58' would be fast man! What's that avg speed, like 27 mph? I'm hoping for a 59'. I haven't ridden the course, it's a bit far from Tyler, but I"m hoping to get a better idea of my 40K effort with the Mineral Wells TT next weekend. Speaking of wind conditions, did you get your front wheel built?

I'm just going to use an 808 or a 404 front and my powertap / wheel covers on the rear. If I can hit 1hr at mineral wells I'll be happy. I will have only been on the bike for 2 weeks, so I doubt I will be fully adjusted to it by then.

Racer Ex
07-16-09, 03:04 PM
Your torso is a bit high, your base bar is tilted up quite a bit, and I'd be inclined to slide you forward on the bars an inch or two. I'd like to see this set up with a helmet on and from the front.