Bike fit / correct riding position

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  • I have nothing to add to this thread, I'd just like to mention that I have a girlfriend.

  • ^ Must spread rep.

  • Your bathroom scales don't count as a girlfriend, no matter how much you sweet talk them.

  • um, so how do I adjust my cleats in order to get one of these 'girlfriends'?

  • I know a place...

  • Maybe its me being a shorty. But the window between my legs

    Does this window have a nice view?

  • I have nothing to add to this thread, I'd just like to mention that I have a girlfriend.

    32 posts by dammit on this thread.

  • Cheater!!!!

  • I have to admit that I was looking at some Wahoo scales this morning- what can I say, I have a roving eye.

  • Look but don't touch... apparently.

  • I have nothing to add to this thread, I'd just like to mention that I have a girlfriend.

    So this was the nothing you had to add?

    I have to admit that I have a roving eye.

  • You wouldn't understand James.

  • Your notion of nothing intrigues me.

  • Sadly it's going to have to remain slightly out of your grasp.

  • Now now ladies, I've been told it's ok if you're in another country.

  • Does this window have a nice view?

    A veiw to my soul.

    ....so dark, moist, with a hellish scent of sulphur.

  • Interesting isn't it? Good use of technology.

    I might give it a bash at some point over the weekend.

    Did you?
    I'm interested as it's approximately bike set up time.

  • Maybe its me being a shorty. But the window between my legs hitting my gut, and my hips rocking is probably only a few mm.

    That has nothing to do with your height but a lot to do with your gut.
    Now go eat some snacks.

  • I'm booking myself in for a bike fit after xmas. I still cant get it quite right on this bike. Every time I fix one thing it causes another annoyance.

  • Yeah those cunts at British Cycling are pure wastemen

    The page presents hardly the basis for bicycle fitting as used by the British National team... Heel over pedal generally results in a position that is sub-optimal low. It neither prevents injury nor optimizes power. Heel on pedal is not unlike factor*inseam or inseam-factor models for saddle to center of bottom bracket. The main difference between the heel on pedal and something like Guimard’s 0.883*inseam is that the former nearly always produces a lower saddle. Genzling's 0.885*inseam produces an even higher saddle height and these are generally lower still than a number of other "formulas". Back in the 1980s a popular formula for saddle height in the US-- attributed to Eddy B.-- was 0.96*trochanter height + shoe/pedal stack height (center of pedal axle to foot sole) - crank length. Eddy's model while resulting in positions quite close to the Guimard height was derived from his own faulty research. Despite being bad science the work was still taken quite seriously given the success of the US team. The most popular formula currently used in the scientific literature is Hamley and Thomas' 1.09*inseam - crank length. Their seminal paper "Physiological and postural factors in calibration of the bicycle ergometer" from 1967 is really the basis for the French factors. The Genzling and Hamley models, however, only intersect when crank length is 20.5% of inseam. That only occurs when a rider has an inseam of 83cm and selects a 170mm crank. If we look at most of the studies (including Hamley's) we'll see that most of the cyclists are not far removed from this median. The Genzling model results in saddle heights for shorter cyclists being put higher, resp. lower for taller, given the observation that road cyclists tend to keep more or less to cranks in the band 170-172.5-175mm in length--- 165 and 167.5mm really are only popular on the track while 180mm is very much a time trial sort of thing. Right now the so-called Holmes method is probably the biggest trend in elite fitting. The current state of research seems to indicate that such heights are perhaps not the best for performance but do provide a good basis for the minimization of injury.

  • A red bike, that's what you want, a red bike. Nothing fits or goes quite like a red bike.

    Edward, you've only really covered static methods for setting up saddle heights- surely it matters what happens when the cyclist actually pedals? When you say Holmes is the biggest trend in elite fitting, do you mean a knee angle measured when actually cycling, or statically measured? I can't imagine any well regarded or elite fitter using a goniometer on a static rider somehow?

  • Anyone have any 3 bolt cleat wedges going spare? I managed to destroy one of mine when transfering to new shoes. (Don't ask)

  • Me again, does anyone know if there are cleat wedges that will work with time atac cleats?

  • Me again, does anyone know if there are cleat wedges that will work with time atac cleats?

    Same size holes as spds just make sure to get ones that aren't as arrow shaped.

    http://www.stevehoggbikefitting.com/store/bike-fitting-products/shims-mtb/

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Bike fit / correct riding position

Posted by Avatar for Timmy2wheels @Timmy2wheels

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