Having some fit issues with my new bike. I get numbness in the median nerve distribution of both hands (first 3 fingers). I am using goodpadded gloves. I am sure it is an issue with stem height (angle). My LBS has tried adjusting bars and we switched from a 100mm to a 80mm stem. Seat position (height as well as fore/aft is good). Rather than continually switching out stems with different degrees of rise and length I am considering getting an adjustable stem. They are available from Ritchie, Dimension and a few other companies.

I can dial in a fit quicker and than purchase a fixed stem of that type. I see Ritchie does not have markings as opposed to Dimension which shows degrees of adjustment. Easier to swith to fixed stem with known degrees.

Yes the adjustable is heavier but I need to lose a lot more than 100 grams off my body so i'm not concerned about stem weight.

Lastly, I see reference to "stack height" on the stems. Is this important?

My bike is a Scott CR 1 Pro. Specs as follows:

http://www.scott-sports.com/us/en/pr.../#.UVmDxDfpct8

No mention of stack height , just stem diameter , 31.8 mm.

Any help is appreciated.

DR J