Threadless 31.8 mm 140 mm Bicycle Stems
Bar clamp diameter is the diamater of the handlebar.
Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.
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Showing 5 products:
Zipp Speed Weaponry Service Course SL Stem - 140mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, Matte Black, B2 
BuyPART NUM 107672
The Zipp Service Course SL Stem, crafted from 7075 aluminum, features a shape that's strong and lightweight, resulting in a 1.85 grams per newton meter … read more
Ships Freeyour price $112.00 + ships free
BuyPART NUM 107672 
Zipp SL Sprint Stem, 31.8 x 140mm, 1-1/8", -12d, Black BuyPART NUM 778244
Designed with feedback from top pros to meet the unrelenting demands of Grand Tour sprinters. ncludes its own stem cap that's designed to … read more
your price $285.00 + ships free
BuyPART NUM 778244 
Ritchey WCS C220 84 Degree Stem: 140mm, +/-6, 31.8mm Bar Clamp, Matte Black
Info
The WCS C220 stem is easy to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware. Bolt forces are aligned … read more
your price $109.95 + ships free
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FSA ACR -6 degree Stem, 31.8mm bar, 140mm length
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Aerodynamic Cable Routing (ACR) Low profile frontal area No rotation limit Body and faceplate - 6061 T6 Chromoly hardware Specific … read more
your price $124.00 + ships free
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FSA SL-K SCR Stem, 84/96 degrees, 140mm, 31.8 Info
Semi integrated Cable Routing (SCR) 3D Forged and CNC machine AL2014 Chromoly hardware ±6º Ø31.8mm handlebar clamp diameter 40mm fork … read more
your price $125.00 + ships free
Info 
"Ritchey bicycle components have been raced to victory in some of the biggest cycling competitions in the world including the UCI World Championships, the Tour de France and the Olympics and it all began in a simple garage in Menlo Park, California with Tom Ritchey.'
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
We define color as the main color of the item. It may have accents or highlights in other colors.
These models are available for online purchasing and can be shipped directly to you.
Bar clamp diameter is the diamater of the handlebar.
Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.
S.H.I.S clamp diameter is the steerer tube diameter.
Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.
Stem Type
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