Join Date: Feb 2005
Bikes: 83 Trek 500, 2x 90s Novara Randonee, Zion 737, Specialized Rockhopper, Nishiki Colorado, Univega Specialissima
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I believe these came with Specialized's own stem and shim system. Look at the rear of the stem when mounted on your bike -is there a little +10 or -8 or something like that? This stem comes with a shim that fits between the stem and steerer tube of yoru fork. This shim has a built in angled spacer on the bottom of it (and also uses a top cap with an off-center bolt hole).
So, you may not have to remove the handlebars to lower them a small bit, it that's all you want.
1. remove top cap.
2. loosen the two stem bolts at the rear (the ones that clamp the steerer)
3. pull stem and shim off.
4. Rotate shim so thin part is toward the front of the bike.
6. Learn how to adjust headset bearings.
Note that even if you undo the handlebars so you can flip the whole stem, the shim should always be on the underside. Effectively this system gives you two positive rise and two negative rise positions, and you can get other shims for even more options. Moving around spacers gives even more options.
If this sounds confusing, I'd just take it to a specialized dealer and have them show you, or perhaps look on their website.