Joined: Apr 2010
Posts: 13,501
Likes: 995
From: Boston-ish, MA
Bikes: 72 Peugeot UO-8, 82 Peugeot TH8, 87 Bianchi Brava, 76? Masi Grand Criterium, 74 Motobecane Champion Team, 86 & 77 Gazelle champion mondial, 81? Grandis, 82? Tommasini, 83 Peugeot PF10
Ah, you didn't say what is going numb. It could be your hands...
If the saddle can be adjusted fore and aft on the rails, consider sliding it forward a bit. It sounds like sitting further back on the saddle works for you but for some reason you end up moving forward on it. Maybe you're just having too reach to far forward.
The other possibility is that the saddle is tilted forward so that you slide forward on it and have to continually push yourself backwards with your hands.
Finally, consider that if the saddle is tilted to far back it puts pressure on your prostrate. Not good, of course. Make the saddle level first.
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Real cyclists use toe clips.
With great bikes comes great responsibility.
jimmuller
Last edited by jimmuller; 10-01-11 at 05:41 PM.
Reason: speling, gramer, whutever