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LeMond Geometry(5 posts)

LeMond Geometryarusk51
Jun 13, 2002 12:31 PM
Can anyone give me any idea what affect the LeMond geometry has on their bikes vs. standard road geometry?

I'm looking to buy a new road bike and can't decide what to get, steel or titanium or carbon. Litespeed, LeMond, Kestrel, Trek.

I've been riding triathlon specific bikes for a long time, never really spent much time on a road bike. I'm considering getting a road bike for long training rides and maybe eventually bike racing.

Can anyone give me some guidance.

Thanks.
Laid backKerry
Jun 13, 2002 4:47 PM
The general message on "Lemond geometry" is a slacker seat angle. Lemond also placed his seat so that his knee protrusion was 2 cm behind the pedal axle. This suited his more "push" vs. "spin" pedaling style, and matched his long femur body dimensions. Whether this is right for you is something only you can decide. Assuming you have a steep seat tube angle on your tri-bike, the Lemond may give a smoother ride as you won't be right over the BB, just the thing for long days in the saddle. Moving the saddle fore/aft has essentially the same effect until you hit the ends of travel. Whether this position suits you, time will tell. If you go this route, change your position slowly.
Lemond geometry no longer exists...C-40
Jun 13, 2002 5:23 PM
Take a look at the current Lemond geometry charts. The seat tube angles range from 74 degrees for small sizes to 72 on the largest sizes. Midsize frames are either 73.25 or 73 degrees - no different than a dozen other brands.

LOOK frames have more consistently slack seat tube angles (72.5 degree on most sizes).

A slack seat tube angle makes the nominal saddle position further back, but it takes a full degree to move the saddle back 1.0-1.5cm (depending on frame size).

If you compare the top tube lengths of frames with different seat tube angles, this difference in nominal saddle position must be added to the actual TT length of the frame with the steeper seat tube angle to make a valid comparison of TT length.

The formula for the exact change in nominal saddle position is: saddle height x (cosA-cosB), where A and B are the seat tube angles of the two frames.
So trueNessism
Jun 13, 2002 6:33 PM
The so called "Lemond Geometery" was modified a few years ago no doubt due to Trek pressure. Now a days the Lemond frames are pretty standard - which is a shame in my book.

Show me the money!

Ed
Well........tronracer
Jun 14, 2002 6:06 AM
Doesn't Trek own Lemond? Correct me if I'm wrong.