Best Aluminum Bike Headset Spacers in 2026

Multi-size package: this package contains 7 different sizes, 1 mm, 2 mm, 3 mm, 5 mm, 10 mm, 15 mm, 20 mm, small size of spacer headset let you have a more precise height adjustment

Appearance and performance: automatic cutting, smooth edge, fit most of the road bicycles, delicate texture and durable to use

Material of bike handlebar spacer: woven carbon, nice look and good quality, light weight, good strength and well temperature resistance, good impact resistance

Add personality & style to your bike with this precision engineered and machined stem cap and spacer kit.

Kit includes: 3mm, 5mm, 10mm, & 15mm headset spacers Ultralight stem cap with an integrated 5mm spacer 4 matching aluminum water bottle cage bolts Black aluminum stem cap bolt

1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only

4 different height 1-1/8" spacers and a top cap, all with Race Face logos

Choose aluminum or ultralight carbon

1-1/8" Headset Spacer Set. Inside diameter:28.6mm

Made of high-quality aluminum alloy material,CNC finished.Weight: Approx 31.5g/set

Package include 4 x 10mm ,1 x 5mm

Fit for 28.6mm front stem fork of MTB, BMX, mountain bike, road bike etc.

8pieces aluminum Headset Spacers 2mmx2,5mmx3,10mmx3.Spaces Inside diameter:28.6mm

Lightweight and easy to install.help to raise your handlebar.

Universal Fit: Suitable for 1 1/8"(28.6mm) fork steerer tube of most mountain bikes, road bikes, MTB, BMX, touring bikes and etc.

Quality Material: Print-black alloy material offers incredible strength, good temperature resistance, lightweight and sleek looking.

9 Piece Kit: 5 sizes, 9 pieces to get a wide range of height combinations to set the optimal position for best riding performance.

Multi-size selection: come with 5 different size, including 2 mm (1 piece), 3 mm (1 piece), 5 mm (3 pieces), 10 mm (3 pieces), 15 mm (1 piece), multi-size for you to adjust the appropriate height

Material: the bicycle headset spacer is made from carbon fiber material, sturdy and durable to use, looks very nice

Resistant to corrosion: carbon fiber bicycle headset spacer is more resistant to corrosion, more hard than aluminum alloy headset spacer, and lighter than aluminum alloy spacer

Why aluminum? Firstly, the difference in weight between 20mm of carbon spacers vs alloy spacer is far, far less than 1/2 ounce. It may be a gram or two. Secondly, The only glossy woven carbon part on the bike are the spacers looked weird. Thirdly, cheap carbon fiber spacers cannot meet the strength requirements of the high stress parts for sports bikes, experts recommended Tensile modulus 200-280Gpa, Tensile Strength 2500Mpa at least. Cheap CF spacers is fragile and even not cut evenly.

Why u need bike headset spacers ? Put simply, headset spacers enable you to easily adjust the height of your handlebars, which is an essential element of bike fit for MTB, BMX and road riders. In the particular case of the latter (road cycling), the correct bar height is key for comfort and performance.

Why 6 piece? The 2 mm, 3 mm, 5 mm, 10 mm spacers make it easy to have a precise height adjustment, the six piece of spacer can add 40mm height totally, that enough for most situations. If you just need 20mm or 25mm, you can still have some backup for more inflexible.

Use for 1-1/8" (28.6mm) Front Stem Fork.

MATERIAL:Made of high-quality aluminum alloy material,Great Anti-corrosion and Lightweight, Only about 35g (7PCS)

FEATURES:Comes Anodized in Black,Red,Blue and Gold,Colorfast Surface,Ultra Precision Diamond Blade Machine Cut, Fit All BMX/Road /Mountain Bikes.

9 Pieces of 9 Height Size.This headset spacer kit contains 9 different height sizes: 1 mm,2 mm,3 mm,5 mm,8 mm,10 mm,15 mm,20 mm,30 mm.

Smooth incision edge offers high tightness.Small size spacer let you have a more precise height adjustment.You can combine them freely to meet your different needs.

Made of woven carbon fiber,nice appearance,lightweight and well temperature resistance.

Fit steerier tube diameter: 1-1/8", 28.6mm stems and forks

Material: Alloy Aluminum MTB BMX Road Bike Stem Spacer, Headset Top Cap,Stainless Steel Headset Star&Bolt

Lightweight and easy to install, having advantages of smooth surface and exquisite workmanship.

Package includes 6 sizes of spacers, they are 1 mm, 2 mm, 3 mm, 5 mm, 10 mm, 15 mm, 2 pieces of each size. You can match them to any height you want.

The Spacers are made of carbon fiber, lighter weight, more resistant to high temperature, corrosion and friction.

This carbon fiber spacer has an excellent quality, attractive and durable, and convenient to carry and use.

Fit steerer tube diameter: 1", 25.4mm stems and forks.If you need 28.6mm(1-1/8 inch) Threadless Fork Tube Headset Spacer,Search ASIN: B08NYZ59R1

Material: Bicycle headset spacers are made of black anodized aluminum alloy material with smooth surface and exquisite workmanship, eco-friendly, sturdy and durable to use

Comes Anodized in Black,Colorfast Surface,Ultra Precision Diamond Blade Machine Cut.Multi-size for You to Adjust The Appropriate Height

* High-quality Material-- Our bike cassette spacers constructed of aluminium alloy, the brand new gasket is anti-rust, long service life.

* Easy to install-- The bicycle speed cassette freehub spacer is lightweight and portable, easy to install and remove quickly, time saving, your best choice.

* Good performance-- Our bike headset spacer perfect for adjusting your bike bottom bracket, flywheel or hub, 3 sizes included, meet your needs.

✅ MATERIAL - Bicycle headset spacers threadless are made of black anodized aluminum alloy material with smooth surface and exquisite workmanship, eco-friendly, sturdy and durable to use

✅ MULTI SIZE - This package contains 3 different sizes: 2mmｘ4, 5mmｘ4, 10mmｘ4. Small size of spacer headset let you have a more precise height adjustment

✅ SIZE DETAILS - Stem spacers road bike inner diameter is 28.6mm，1-1/8" headset spacer set, compatible with 28.6mm front stem fork of MTB, BMX, mountain bike, road bike, etc

Inline Skate Bearing Spacers Material: Aluminum alloy, galvanized speed ring iron is specially molded into a dragon size.The gaskets are machined from high quality aluminum and meet specific standards. Aluminum Spacers This minimizes resistance to the bearings, and the sturdy aluminum construction eliminates the head and is more durable than other plastics! Skate bearing High quality, guaranteed service life!

Aluminum Spacers This stepped gasket is suitable for conventional: Inline Aluminum Spacer aluminum shaft outer diameter: 7.9 mm inner diameter: 6.3 mm length: 23.5MM Size: 6.3MM X 7.9MM X 23.5MM. The bearing is located in the recessed part of the gasket and is provided with the wheel. Stepped Spacer Seamless integration. ( Package: 8 pack )

Bearing Skate accessories Suitable for all standard size wheels, standard size 8mm bearings and standard size 6mm axles for standard size wheels and bearings. 6mm Axle Aluminum This minimizes resistance to bearings. The robust aluminum construction eliminates head and ratio Other plastics are more durable. Skate Wheel Bearing Installation: Place one bearing in the wheel. Install the gasket into the bearing in the wheel and insert the other bearing into the other side of the wheel.

[Four Different Size]: There are 4 different size(5mm/10mm/15mm/20mm) into the pack, providing various combination to adjust height of handlebars to fit your riding style

[Multiple Colors]: This fork washer is available in 4 colors, you can choose the color you like best, smooth surface and exquisite workmanship will make your bike looks cool

[Easy to Install and Lightweight]: The headset spacers are very lightweight, easy to install on your bike, and it won't add any burden to your bike, you will feel comfortable when riding

🥭 MYLTI-SIZE PACKAGE: 12 Pcs bicycle handlebar spacers are available in 3 sizes 2mm / 5mm /10mm, 4 Pcs each size, provide various combinations to adjust the height of the handlebar to suit your riding style

🥭 MATRERIAL: Bicycle headset spacers are made of 6061 aviation aluminum alloy, CNC finished. Lightweight, smooth surface, exquisite workmanship, sturdy and durable to use

🥭 FEATURES: Aluminum headset spacer is easy to install, corrosion-resistant, more sturdy and durable, suitable for most bicycles

Lightweight aluminum

10 to a bag

Non-Keyed

Large size: This package contains two different sizes, 30mm, 40mm, larger size allows you to put in place in one step, the two sizes can overlap seamlessly.

Materials: Woven carbon fiber, woven carbon, heat-resistant, impact-resistant, sturdy and durable, beautiful appearance, light weight.

Feature: Carbon fiber headset spacer resistant to corrosion, more sturdy, durable, Lighter and harder than aluminum alloy headset spacer.

QUALITY MATERIAL: Our headset spacer is made of high-quality aluminum alloy material, eco-friendly, sturdy and durable to use.

EASY TO INSTALL:The headset spacer is lightweight and easy to install, having advantages of smooth surface and exquisite workmanship.

SUITABLE FOR WIDELY: Perfectly suitable for 28.6mm front stem fork of MTB mountain bike, road bike etc.Available in 4 colors, just choose the color you like.

1-1/8" Headset Spacer Set

Black anodized aluminum

Includes one each: 2.5mm, 5mm, 7.5mm & 10mm

Pakage：12 PCS bike handlebar spacers in 3 sizes 3mm / 5mm /10mm，4 PCS each size, various combination to adjust height of handlebars.

Material: Bicycle headset spacers threadless are made of black anodized aluminum alloy material with smooth surface and exquisite workmanship, eco-friendly, sturdy and durable to use

Size：It compatible with 28.6mm(1-1/8") front stem fork of MTB, BMX, mountain bike, road bike etc

【Material】Pure Titanium. Strong and sturdy, light weight, good strength and well temperature resistance, good impact resistance.

【Size】Dia 28.6mm. Length: 5mm 10mm 15mm 20mm 25mm 30mm.

【Feature】More resistant to corrosion, more hard than aluminum alloy headset spacer, and lighter than aluminum alloy made one.

ECO-FRIENDLY & DURABLE: The bicycle headset spacer set are made of high-quality aluminum alloy material, which is eco-friendly, sturdy and durable to use for a long time

SUPER LIGHTWEIGHT: The headset spacers are very lightweight, easy to install on your bike, and it won't add any burden to your bike, you will feel comfortable when riding

MULTIPLE COLORS: This fork washer is available in 4 colors, you can choose the color you like best, smooth surface and exquisite workmanship will make your bike looks cool

Package: 6 PCS bike handlebar spacers in 3 sizes, 2*5mm, 3*10mm, 1*20mm, provide various combination to adjust height of handlebars.

Material: Made of high-quality aluminum alloy material, great anti-corrosion and lightweight.

Size: Stem spacers road bike inner diameter is 28.6mm, use for 1-1/8” (28.6mm) front stem fork of MTB, BMX, mountain bike, road bike etc.

1-1/8" Headset Spacer Set. Inside diameter:28.6mm. Color : Black

Made of high-quality aluminum alloy material,CNC finished.

Package include 4 x 5mm/ 4 x 10mm

★Size：Stem spacers road bike inner diameter is 28.6mm，1-1/8" headset spacer set, compatible with 28.6mm front stem fork of MTB, BMX, mountain bike, road bike etc.

★Material : Aluminum Alloy MTB Headset Spacer,Stainless Bicycle Fork Headset Star Nut, Titanium Bolt .Bicycle headset spacers threadless are made of black anodized aluminum alloy material with smooth surface and exquisite workmanship, eco-friendly, sturdy and durable to use

★Exquisite Workmanship:The Bike Top cap Comes anodized in Black, Blue, Yellow and Red,colorfast surface,Ultra Precision Diamond Blade Machine Cut,great anti-corrosion. Beatiful Color,Stand out from the crowd.

Package Contain:16Pcs Bicycle Headset Spacer,10mm(7pcs);5mm(5pcs);2mm(4pcs).Provide various combination to adjust height of handlebars to fit your riding style.

Material: Bicycle headset spacers threadless are made of black anodized aluminum alloy material with smooth surface and exquisite workmanship

Stem spacers road bike inner diameter is 28.6mm，1-1/8" headset spacer set, compatible with 28.6mm front stem fork of MTB, BMX, mountain bike, road bike etc

HIGH QUALITY MATERIA: This product is made of high quality aluminum alloy material, eco friendly, sturdy and durable to use

EXQUISITE DESIGN: The headset spacer is lightweight and easy to install, having advantages of smooth surface and exquisite workmanship.

SUITABLE BIKE: This product is perfectly suitable for 28.6mm front stem fork of MTB mountain bike, road bike etc.