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"spank 28.6 mm stems"

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Thomson Elite Seatpost Black 28.6 mm x 330 mm
Thomson Elite Seatpost Black 28.6 mm x 330 mmThomson

Over 40% stronger on ultimate strength test than the strongest production seatposts on the market. Over double the fatigue life of any other production … read more

StarStarStarStarStar 4.5 of 5 ( 4 ) 4.5 of 5 stars average ( 4 reviews )

your price $114.95 + ships free

BuyBuyPART NUM 773570
ProTaper Stem 31.8 x 30mm, 28.6, Stealth Black
ProTaper Stem 31.8 x 30mm, 28.6, Stealth Black

3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more

your price $104.99 + ships free

BuyBuyPART NUM 590926
Ritchey Stem Shim - 31.8 to 28.6, 1-1/4" to 1-1/8
Ritchey Stem Shim - 31.8 to 28.6, 1-1/4" to 1-1/8Ritchey

Ritchey Stem Shim- adapts 31.8 to 28.6, 1-1/4" to 1-1/ … read more

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

your price $6.95

BuyBuyPART NUM 295777
Ritchey Stem Adapter Shim 28.6 To 25.4mm (1-1/8 To 1") Black
Ritchey Stem Adapter Shim 28.6 To 25.4mm (1-1/8 To 1") BlackRitchey

Reduces inner stem diameter down to adapt to forks with one size smaller steerer tube Black anodized 6061 alloy, 15g Item Specifications … read more

your price $6.95

BuyBuyPART NUM 907091
Ritchey Comp Switch Headset for 90mm Stem IS52/28.6|IS52/30
Ritchey Comp Switch Headset for 90mm Stem IS52/28.6|IS52/30Ritchey

Works specifically with the Ritchey Switch Stem (part #RC1560-64) to route \ncables, wires and hydraulic lines from the handlebar through to the bicycle … read more

your price $31.95

BuyBuyPART NUM 229488
ProTaper Stem 35 x 40mm, 28.6, Stealth Black
ProTaper Stem 35 x 40mm, 28.6, Stealth Black

3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 35.0mm … read more

your price $99.99 + ships free

BuyBuyPART NUM 115170
ProTaper Stem 35 x 35mm, 28.6, Stealth Black
ProTaper Stem 35 x 35mm, 28.6, Stealth Black

3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 35.0mm … read more

5% offretail $104.99 your price $99.99 + ships free

BuyBuyPART NUM 388605
ProTaper Stem 31.8 x 35mm, 28.6, Stealth Black
ProTaper Stem 31.8 x 35mm, 28.6, Stealth Black

3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more

your price $104.99 + ships free

BuyBuyPART NUM 515853
Origin8 Throwdown OS MTB Stem, 35 x 35 x 28.6, Black
Origin8 Throwdown OS MTB Stem, 35 x 35 x 28.6, Black

Ideal for Trail, Enduro, and Downhill MTB applications 3D forged and CNC machined AL6061-T6 alloy construction Designed for use with … read more

15% offretail $57.99 your price $49.29 + ships free

BuyBuyPART NUM 509897
Origin8 Flow OS MTB Stem, 55 x 35 x 28.6, Black
Origin8 Flow OS MTB Stem, 55 x 35 x 28.6, Black

3D forged AL6061-T6 alloy construction Designed for use with oversized 35mm handlebars 40mm stack height 4-bolt front loading … read more

15% offretail $51.99 your price $44.19 + ships free

BuyBuyPART NUM 205546
Origin8 Flow OS MTB Stem, 45 x 35 x 28.6, Black
Origin8 Flow OS MTB Stem, 45 x 35 x 28.6, Black

3D forged AL6061-T6 alloy construction Designed for use with oversized 35mm handlebars 40mm stack height 4-bolt front loading … read more

15% offretail $51.99 your price $44.19 + ships free

BuyBuyPART NUM 703983
Origin8 Flow OS MTB Stem, 35 x 35 x 28.6, Black
Origin8 Flow OS MTB Stem, 35 x 35 x 28.6, Black

3D forged AL6061-T6 alloy construction Designed for use with oversized 35mm handlebars 40mm stack height 4-bolt front loading … read more

15% offretail $51.99 your price $44.19 + ships free

BuyBuyPART NUM 858968
Origin8 Pro Fit Alloy Ergo Stem, 35 degree, 31.8-25.4/28.6-25.4
Origin8 Pro Fit Alloy Ergo Stem, 35 degree, 31.8-25.4/28.6-25.4

3D forged AL6061-T6 alloy construction 4-bolt, 2-piece faceplate design Road or Mountain compatible Includes shims for 25.4mm … read more

15% offretail $39.99 your price $33.99 + ships free

BuyBuyPART NUM 852210
Origin8 Pro Fit Alloy Ergo Stem, 31.8-25.4/28.6-25.4, 90
Origin8 Pro Fit Alloy Ergo Stem, 31.8-25.4/28.6-25.4, 90

3D forged AL6061-T6 alloy construction 4-bolt, 2-piece faceplate design Road or Mountain compatible Includes shims for 25.4mm … read more

15% offretail $39.99 your price $33.99 + ships free

BuyBuyPART NUM 566652
Origin8 Pro Fit Alloy Ergo Stem, 31.8-25.4/28.6-25.4, 110
Origin8 Pro Fit Alloy Ergo Stem, 31.8-25.4/28.6-25.4, 110

3D forged AL6061-T6 alloy construction 4-bolt, 2-piece faceplate design Road or Mountain compatible Includes shims for 25.4mm … read more

15% offretail $39.99 your price $33.99 + ships free

BuyBuyPART NUM 155745
Sunlite 0 degree-60 degree Adjustable Stem,125mm, 31.8 - 25.4/28.6 - 25.4, Black
Sunlite 0 degree-60 degree Adjustable Stem,125mm, 31.8 - 25.4/28.6 - 25.4, BlackSunlite

Forged alloy construction Adjustable angle (0 degree to 60 degree) Shims included with each stem Fits both 25.4mm and 31.8mm … read more

StarStarStarStarStar 4.5 of 5 ( 2 ) 4.5 of 5 stars average ( 2 reviews )

your price $36.99

BuyBuyPART NUM 891646
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, Red
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, RedSE Bikes

BMX style 6061-T6 aluminum stems with chrome plated chomoly steel bolts Intended for 1-1/8" forks and 22.2mm bar clamps SE Wing logo … read more

your price $49.99 + ships free

BuyBuyPART NUM 451980
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, Gold
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, GoldSE Bikes

BMX style 6061-T6 aluminum stems with chrome plated chomoly steel bolts Intended for 1-1/8" forks and 22.2mm bar clamps SE Wing logo … read more

your price $49.99 + ships free

BuyBuyPART NUM 369008
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, Blue
SE Bikes Narler Stem, 55mm x 22.2mm x 28.6, BlueSE Bikes

BMX style 6061-T6 aluminum stems with chrome plated chomoly steel bolts Intended for 1-1/8" forks and 22.2mm bar clamps SE Wing logo … read more

your price $49.99 + ships free

BuyBuyPART NUM 849086
Thomson

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

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Ritchey

"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.'

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Sunlite

"Every year bikes change, styles and trends evolve, old bikes are in need of repairs and new bikes are waiting for that personal touch. We provide the means to keep your bike on the road and fun to ride!"

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SE Bikes

"In 1977, SE Racing was born with the goal of producing innovative BMX bikes for riders everywhere. Soon after, SE produced the first race ready high-end aluminum race bike, the JU-6, featuring stiff Floval tubing. This groundbreaking bike was further modified and became the legendary PK Ripper."

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Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

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RockShox

"An icon in the mountain bike industry."

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Shimano

"Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment."

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Cane Creek

"The world's best choose Cane Creek. A key element of Cane Creek's mission is to support the sport of cycling, including racing, charitable activities and cycling advocacy. Cane Creek believes strongly in the power of bicycles and their potential to effect positive change in our society. To that end, Cane Creek supports athletes and teams whose purpose encompasses more than competitive racing, such as getting more people on bikes, improving or promoting a healthy lifestyle, and making our world better through the use of a bike."

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Full Speed Ahead

"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."

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Minoura

"Bicycle use has changed greatly in the last 10 years but we see a bright future in cycling and stay committed to developing products that everyone can understand. MINOURA will continue to enhance product development and planning to keep our 80 year promise of delivering great, well-built products."

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

Weight

These models are available for online purchasing and can be shipped directly to you.

The seatpost diameter must match to the seat tube diamater of your frame. If replacing a seatpost, you can usually find this measurement etched near the bottom of your current post.

Seatpost length is measured in millimeters. It is typically measured from the bottom of the post to the center of the rail mount.

Offset is often referred to as setback. This is the distance in mm that the clamp is offset from the center of the seatpost.

Seatpost Material

Rigid seatposts are the most common type of seatpost with no suspension or dropping capability.

Seatpost Clamp Style

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

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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Buy this product and your entire order ships for free.

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