|For Threaded Forks/Headsets||For Threadless Forks/Headsets|
|1 Inch||1 1/8 Inch||1 1/4 Inch||Stem Riser||1 Inch||1 1/8 Inch||1 1/4 Inch||Stem Riser|
Stems listed in this section have standard 7/8" (22.2 mm) diameter quills, fit most higher quality bicycles made in the 20th century.
- one-piece crank , BMX bikes, older Schwinns and some early mountain bikes.
These are beautiful, Japanese-made forged aluminum stems with an extra tall column (225 mm overall.) Not as flexible as you were when you bought your bike? Want a more upright position without sacrificing the versatility of your drop bars? This is the ticket! These allow you to raise your handlebars about 2 1/2" higher than traditional stems.
These have a standard 22.2 mm (7/8") column which fits standard "one inch" fork steerers.
- The 26.0 mm clamp fits most modern road handlebars (except the newer 31.8mm).
- Shims are available for handlebars with 25.4mm center.
- Sizes (Extention/reach): 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm
Aluminum stem with 17 degree rise. These have a standard 22.2 mm (7/8") column which fits standard "one inch" fork steerers.
Rise (angle up): 17 degrees Reach (Extension): Current stock is 100mm only! Clamp Diameter: 25.4mm Quill Diameter: 22.2mm Quill Overall Length: 180mm Color: Silver
25.4mm clamp is standard on most flat and riser handlebars.
This stem will not work with drop handlebars.
These beautifully made stainless-steel shims let you use a standard 25.4 mm (1 inch) diameter handlebar in an Italian size (26.0 mm) stem.
See the Quality Catalogue
This is a quill adaptor that fits into a 1 1/4" threaded fork, and allows you to use any 1 1/8" threadless-type stem. Just the thing for Santana tandems!
1 inch threadless stems are a bit of an endangered species; the usual answer is to use a 1 1/8" stem with a shim. That's perfectly safe, but a bit kludgy.
See the Quality Catalogue
Dimension "Pop-Top" Stems"Dimension" is an exclusive brand from Quality Bicycle Products. They are very light, very stiff, very reliable and we like them a lot!
We generally don't stock many of the sizes. They can be ordered through our QBP Special Order catalogue.
See the Dimension 1 1/8 threadless listing in the Quality Catalogue
"Pop top" type stems use two bolts and a removeable faceplate to hold the handlebar. This offers a number of advantages:
- The bars or stem can be swapped without removing tape/grips or control levers.
- Since it doesn't work by flexing the aluminum as a single-bolt stem does, they're less fussy about bar diameter, so the same stem can generally be used for 25.4 or 26 mm handlebars.
- Because the face plate is removeable, the barrel of the stem is accessible for drilling out. This allows the stem to have a large diameter for stiffness, but also to be hollow for lightness.
- The stem is reversible, so it may be used either angled up or down, depending on the desired handlebar position.
Other brands are listed here in the Quality Catalogue
A stem raiser fits into the steering column in place of your present stem, and secures with a wedge bolt in the normal manner. The upper part of the stem raiser sticks out above the steerer, and is bulged out so that you can insert your original stem. The bottom of the original stem winds up a bit above the top of the headset, so you gain several inches of height.
Overall length is 210mm. The bulged section is 100mm. Length to minimum insertion is 140mm.
|Part #||For Stem with a Quill Diameter of:||Diameter|
of inserted part of Raiser
|I.D. of bulged section of Raiser||Application||Price|
|SM247||13/16" (21.15 mm)||13/16" (21.15 mm)||13/16" (21.15 mm)||for older American bikes, BMX.||$19.95|
|SM248||7/8" (22.2 mm)||7/8" (22.2 mm)||7/8" (22.2 mm)||fits most bikes with 1" threaded headsets (Most common).||$19.95|
|SM249||1.0" (25.4 mm)||1.0" (25.4 mm)||1.0" (25.4 mm)||fits oversized forks with 1-1/8" threaded headsets. (Not very common).||$19.95|
Note: Steerers are butted at the bottom, so the hole in the steerer is constant-diameter until near the bottom, then the walls taper inward in the butted section. It is vitally important that the stem extender (or stem) is not inserted so far that the wedge is installed where the steerer is narrowing, or it could come loose unpredictably. This is sometimes a problem on smaller frames if you try to insert the stem or a stem riser too far down into the steerer.
These fit onto the steering column in place of your present stem, and secure with a pinch bolt in the normal manner.
The upper part of the stem raiser sticks out above the steerer, and is necked down so that you can install your original stem.
Dimensions Threadless Stem Raiser for 1-1/8" fork steerers SM1977 $32.95Dimension Steerer extender (stem raiser) lets you raise your handlebars by 2 to 3 1/4 inches (50 to 80 mm)
Once this accessory is installed, you can also raise, lower or even remove your stem without disturbing the adjustment of your headset.
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