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45- mm 90 deg Bicycle Stems

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.

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.

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Showing 35 products:

Ritchey Trail Stem - 45 mm, 31.8 Clamp, +/-0, 1 1/8", Alloy, Black
Ritchey Trail Stem - 45 mm, 31.8 Clamp, +/-0, 1 1/8", Alloy, BlackRitchey

The Ritchey Trail Stem is the first Ritchey stem specifically designed for today's 5 to 6 inch travel trail bikes using wide bars. C220 with forward … read more

your price $49.95 + ships free

BuyBuyPART NUM 303891
Origin8 Flow 3D MTB Stem, 45x31.8x28.6 0d, Black
Origin8 Flow 3D MTB Stem, 45x31.8x28.6 0d, Black

3D forged AL6061-T6 alloy construction 40mm stack height 4 bolt front loading faceplate design ISO-Mountain safety certification … read more

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

BuyBuyPART NUM 200739
Kalloy Uno Advanced Project Stem, 31.8 x 0d x 45mm Black
Kalloy Uno Advanced Project Stem, 31.8 x 0d x 45mm Black

Lightweight 3D forged 6061-T6 aluminum 4-bolt faceplate Opposing 2-bolt steerer clamp stack height = 40mm 125g (45mm) … read more

your price $16.99

BuyBuyPART NUM 775099
Promax Impact Mini 45mm Top Load Stem 1" Blue
Promax Impact Mini 45mm Top Load Stem 1" Blue

Item Specifications Color: Blue Reach: 45 Stem Type: Top Load … read more

your price $42.00 + ships free

BuyBuyPART NUM 403864
Spank Spoon 350 Stem, 35 x 45mm, Black
Spank Spoon 350 Stem, 35 x 45mm, Black

Strong yet competitively lightweight alloy single crown stem for all disciplines 6-Series alloy is 3D forged and CNC optimized Unique … read more

your price $59.99 + ships free

BuyBuyPART NUM 563710
Ritchey WCS Trail Stem: 45mm, +/- 0, 31.8, 1-1/8, Blatte
Ritchey WCS Trail Stem: 45mm, +/- 0, 31.8, 1-1/8, BlatteRitchey

Ritchey Stems 3D Forged 2014 alloy C220 with forward facing bolt design for easy installation 220 degree, extra-wide bar clamp improves … read more

your price $99.95 + ships free

BuyBuyPART NUM 383693
Kalloy Uno M35 Stem, 35.0 x 0d x 45mm, Black
Kalloy Uno M35 Stem, 35.0 x 0d x 45mm, Black

Lightweight 3D forged 6061-T6 aluminum 4-bolt faceplate Opposing 2-bolt steerer clamp stack height = 40mm Item Specifications … read more

your price $17.99

BuyBuyPART NUM 296644
Box Hex Lab Mini Stem, 45mm x 28.6mm x 1", Black
Box Hex Lab Mini Stem, 45mm x 28.6mm x 1", Black

Based on the Box One Trail Mountain Stem, Hex Lab Mini Stems are 3D cold forged from 6061-T6 aluminum alloy, giving them an incredible strength … read more

your price $69.99 + ships free

BuyBuyPART NUM 971293
Chromag RIZA Stem, (31.8) 90d X 45mm - Red
Chromag RIZA Stem, (31.8) 90d X 45mm - Red

CNC machined in Whistler, Canada from premium 6061 billet aluminum Features a new faded edge on the clamp face to help avoid hot spots and … read more

$13 offretail $135.00 your price $121.50 + ships free

BuyBuyPART NUM 262128
Chromag Riza Stem, 45 x 28.6, 90 Degree, Silver
Chromag Riza Stem, 45 x 28.6, 90 Degree, Silver

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $138.00 your price $124.20 + ships free

BuyBuyPART NUM 307014
Chromag Riza Stem, 45 x 28.6, 90 Degree, Red
Chromag Riza Stem, 45 x 28.6, 90 Degree, Red

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $138.00 your price $124.20 + ships free

BuyBuyPART NUM 915620
Chromag Riza Stem, 45 x 28.6, 90 Degree, Gold
Chromag Riza Stem, 45 x 28.6, 90 Degree, Gold

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

your price $135.00 + ships free

BuyBuyPART NUM 601824
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $138.00 your price $124.20 + ships free

BuyBuyPART NUM 283891
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $135.00 your price $121.50 + ships free

BuyBuyPART NUM 674993
Chromag Riza Stem, 45 x 28.6, 90 Degree, Black
Chromag Riza Stem, 45 x 28.6, 90 Degree, Black

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $135.00 your price $121.50 + ships free

BuyBuyPART NUM 170652
Chromag Riza Stem, 45 x 28.6, 90 Degree, Black
Chromag Riza Stem, 45 x 28.6, 90 Degree, Black

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $138.00 your price $124.20 + ships free

BuyBuyPART NUM 364954
Origin8 Flux OS MTB Stem, 45 x 35 x 28.6mm, Black
Origin8 Flux OS MTB Stem, 45 x 35 x 28.6mm, Black

Full CNC machined AL6061-T6 alloy construction Designed for use with oversized 35mm handlebars 35mm stack height 4-bolt front … read more

15% offretail $82.99 your price $70.59 + ships free

BuyBuyPART NUM 284849
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
Spank Spoon 350 Stem - 45mm, 35mm Clamp, +/-0, Rasta
Spank Spoon 350 Stem - 45mm, 35mm Clamp, +/-0, Rasta

Spank Spoon Stems feature unique style, modern geometry, and rock-solid construction, without the heavy price tag suitable for all disciplines. … read more

your price $69.99

BuyBuyPART NUM 858510
Spank Split 35 Stem - 45mm 35mm 0 Degree Alloy Black
Spank Split 35 Stem - 45mm 35mm 0 Degree Alloy Black

Highly weight optimized single crown stem, ideal for Enduro applications with 31.8mm handlebars Human Factor Design features micro increment size options … read more

Currently Sold Out

your price $99.99 + ships free

InfoInfo
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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Answer

Answer BMX makes BMX racing components.

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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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