Thomson Bicycle Stems and Stem Parts

About Thomson - Thomson is leading with innovative design for two primary markets - aerospace and cycling.

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Thomson X4 1.5" 45mm 0 Degrees 31.8 Black
Thomson X4 1.5" 45mm 0 Degrees 31.8 BlackThomson

Thomson X4 One Point Five Stems feature custom heat-treated bolts with corrosion-preventative plating. Machined 7000-series extruded bar stock with … read more

your price $109.95 + ships free

BuyBuyPART NUM 355688
Thomson X4 Mountain 31.8 70mm 90 Degrees Silver 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 70mm 90 Degrees Silver 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 672763
Thomson X4 Mountain 31.8 70mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 70mm 90 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 541817
Thomson X4 Mountain 31.8 50mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 50mm 90 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 534897
Thomson X4 Mountain 31.8 100mm 100 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 100mm 100 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 626800
Thomson X2 31.8 90mm 80/100 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 90mm 80/100 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 698993
Thomson X4 80mm 90d 31.8 Black
Thomson X4 80mm 90d 31.8 BlackThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 755644
Thomson X2 31.8 100mm 73/107 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 100mm 73/107 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 114214
Thomson X4 Mountain 31.8 90mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 90mm 90 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 788193
Thomson X2 31.8 70mm 80/100 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 70mm 80/100 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 263048
Thomson X2 31.8 110mm 80/100 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 110mm 80/100 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 519124
Thomson X4 Mountain 31.8 90mm 100 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 90mm 100 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 647634
Thomson X2 31.8 100mm 80/100 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 100mm 80/100 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 664709
Thomson X4 Mountain 31.8 100mm 100 Degrees Silver 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 100mm 100 Degrees Silver 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 202837
Thomson X4 Mountain 31.8 100mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 100mm 90 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 428098
Thomson 50mm x 7/8" Black BMX Stem
Thomson 50mm x 7/8" Black BMX StemThomson

Thomson BMX Stems are constructed of machined 7000-series extruded bar stock with heat-treated bolts. Item Specifications Color: Black Intended Use: … read more

your price $99.95 + ships free

BuyBuyPART NUM 368738
Thomson X2 31.8 100mm 80/100 Degrees Silver 1-1/8" Threadless Road Stem
Thomson X2 31.8 100mm 80/100 Degrees Silver 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 111179
Thomson X2 31.8 90mm 80/100 Degrees Silver 1-1/8" Threadless Road Stem
Thomson X2 31.8 90mm 80/100 Degrees Silver 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $99.95 + ships free

BuyBuyPART NUM 638984
Thomson X4 Mountain 31.8 110mm 100 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 110mm 100 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $99.95 + ships free

BuyBuyPART NUM 647349
Thomson Face Plate For X4 31.8 Black
Thomson Face Plate For X4 31.8 Black Thomson

Thomson Face Plates … read more

your price $9.95

BuyBuyPART NUM 712132
Thomson

Thomson is leading with innovative design for two primary markets - aerospace and cycling.

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We define color as the main color of the item. It may have accents or highlights in other colors.

In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.

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, and 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

Buy this product and your entire order ships for free.

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