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Search: Posts Made By: PeteHski
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05-12-22, 10:00 AM
Replies: 139
Views: 18,041
Posted By PeteHski

Don't get me wrong. I'm not suggesting 150 mm...

Don't get me wrong. I'm not suggesting 150 mm cranks don't make a difference. I'm just questioning your "numbers", which are frankly too good to be true. Have you got any recorded evidence (i.e....
05-12-22, 03:49 AM
Replies: 139
Views: 18,041
Posted By PeteHski

Well I'm pretty sure you would have to be putting...

Well I'm pretty sure you would have to be putting out well north of 300W to cruise at a genuine 28 mph (that's the speed pro road racers ride solo on 20k bikes) and you weighed 54.4 kg. So that's...
05-12-22, 03:11 AM
Replies: 139
Views: 18,041
Posted By PeteHski

Okay, for the sake of argument lets say the bikes...

Okay, for the sake of argument lets say the bikes are equal and you are in a full-on TT position

28 mph, 120 lb rider, clincher road tyres, aerobar = 322W
25 mph, 130 lb rider, clincher road...
05-11-22, 05:42 PM
Replies: 139
Views: 18,041
Posted By PeteHski

re. Bike Calculator 28 mph on the flat, no...

re. Bike Calculator

28 mph on the flat, no wind, mtb tires = 600W
25 mph, road tyres = 380W

So a difference of some 220W right there

.....and you say the speed difference is even bigger...
02-21-22, 11:20 AM
Replies: 139
Views: 18,041
Posted By PeteHski

Great first post! I like the squat analogy. ...

Great first post! I like the squat analogy. Shorter cranks just make it easier to control those critical angles at both the top and bottom of the stroke. If cranks are too long, you can run into...
01-31-22, 03:52 AM
Replies: 139
Views: 18,041
Posted By PeteHski

This is my solution. I think it works well for...

This is my solution. I think it works well for both flats and climbing. I just set the forward part of the saddle horizontal and the tail is angled 9 deg downward. I don't adjust my saddle setback...
01-31-22, 03:35 AM
Replies: 139
Views: 18,041
Posted By PeteHski

That's the intuitive view, but it depends how you...

That's the intuitive view, but it depends how you currently set up your saddle height. In the article I linked to above, the fitter actually suggests starting with the same saddle height as you...
01-30-22, 07:20 AM
Replies: 139
Views: 18,041
Posted By PeteHski

I've always wondered about this. When you ride...

I've always wondered about this. When you ride up a hill all the contact points remain in exactly the same relative orientation. So if you remain seated then your bike fit geometry does not change...
01-30-22, 05:58 AM
Replies: 139
Views: 18,041
Posted By PeteHski

I agree, the industry pretty much ignores all the...

I agree, the industry pretty much ignores all the studies regarding crank length vs leg length and flexibility. I like the attached summary below from a well regarded UK fitter and another very...
01-29-22, 12:52 PM
Replies: 139
Views: 18,041
Posted By PeteHski

For me crank length is really about matching your...

For me crank length is really about matching your personal range of joint motion. Go too long and you get problems with knee/hip angles etc. Go too short and you give away potential torque/leverage....
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