Your wattage for 25mph TTs
 

For those of you who do TTs with a Powermeter, care to share what is your typical wattage range for 25mph speeds on flat roads under ideal conditions (minimal/no wind)?

Yes, I know it will vary a lot depending on road type, TT position, etc. I just want to get a sense of the numbers.

I have read it takes approx 290-300W to hold 25mph on a road bike in the drops and approx 250-260W in a TT tuck. Want to try to figure out what actual numbers are for various people.

~200.

for me, although we don't have much flat/windless around here, I can do 25.0 at around 230-235 watts.

fortunately I have been going a bit faster than that in flat TTs lately.

http://farm5.static.flickr.com/4018/...c1d53d7c_b.jpg

You're slick Nate.

I can't do 25 @ 200 no matter what kind of bike I'm on.

Dang. I must have the drag coefficient of a dump truck on my road bike :D

@Nate - 200W? For real? Yeesh. I scrape by at about 20-21mph at that wattage on a road bike.

Grumpy - 230-235, eh? That's comforting. I had given myself a target of 260W or so in order to pull off a sub-hour 40k, and I think it appears to be a realistic target (my tuck isnt going to be as neat as yours - as I have a short torso/long legs, I need my elbows wider in order to clear my knees).

Thanks!

With no aero anything, and not really a very good TT position, I have the following for 3 TT's I did last year: 224w @ 21.7, 234w @ 22.2, and 243w @21.7. Note 20w increase in power (these are average power) with no increase in speed. No idea, but it was colder. So I would kill to do 25mph at 200w, but I think I would need closer to 300w to do 25mph on this course (which is rolling).

Weight plays a HUGE role in that number.

The OP said flat roads. CdA is more important than weight with that stipulation in place.

If you're responding to jgg3, absolutely agree.

Is there a way to turn on a 'who is responding to who' feature on BF?

Yeah, but I'm a little guy riding a pretty aggressive position.

http://i55.tinypic.com/2r27okh.jpg

fatty.

That's it, I'm going to go get the measuring tape. It's go time.

:lol:

nate already won the skinniest arms thread

~250-260 on a TT bike w/aero stuff.

I thought for sure I had him beat with my wrists and ankles...but no.

Is that Internet power or Cat 3 power?

My CP is quite a bit higher than 250w.

I'm also a fatty at 78kgs.

My power to go 25 mph is about the same with TT bike and aero. At 78 kgs, I must be a fatty too.

This was what it took me to hold 26.8 for just under an hour last year. I actually had a bad day and couldn't hold the same power I did a week earlier in a 50 minute interval. My threshold is a bit more now.

http://www.astro.ufl.edu/~ken/2010_state_tt.png

Jesus...you are gonna take my time down...

I told you..

I was holding ~29-30 into a headwind on Tuesday's hipp ride, sans fancy wheels/helmet. The new rig is pretty damned aero.

BTW you should be sleeping rather than reading bikeforums.