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Deda Magic Stem: Reverse or replace?(4 posts)

Deda Magic Stem: Reverse or replace?1cm guy
May 18, 2001 4:27 PM
I have a Deda Magic handlebar and stem. I want to raise my handlebar about 1 cm, which I can get with a 100 degree stem angle rather than the 80 angle of the Deda Magic stem.

One option is to reverse the 80 degree Deda Magic stem, but it is not described or spec'ed as being reversible. Would there a problem with simply reversing the Deda Magic stem? Another option is to replace the stem with a Cinelli Solido Magnum or a 3ttt Zepp XL 31.8 Stem. The Deda stem clamp is 31.75 mm (often referred to as 31.7) and seems likely to be compatible with the Cintelli and 3ttt, which are referred to as "31.8." Any thoughts - other than why so much effort for a cm? Thanks.
Flop it over (nm)Retro
May 18, 2001 5:09 PM
3.7cm rise and 1cm less reach....dave
May 18, 2001 5:40 PM
If you flip an 80 degree stem to get a 100 degree stem the increase in rise will be about 3.7cm (for a 11cm long stem), which is a lot more than you want. The reach to the bars will also be decreased by 1cm.

All you need is an increase of about 6 degrees, to get a 1cm rise.
Thanks All ... nice to see trig still works...1cm guy
May 18, 2001 6:38 PM
And I should have done the math...

For any future math-lazy folks, like I was...

Checking the specs on the Deda Web site, the rise will just be about 33 mm for 110 mm stem, rather than 37 mm -- since the stem length is measured to the center of the steerer tube (through the 80 degree "bend"). But Dave is right for a theoretical stem... And it's far more rise than I want... So I can wait for a 90 degree stem with 31 mm clamp to get a 16 mm rise... Thanks again...