—$15.49

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 812719020657

by Wolf Tooth

—$18

There are a lot of things you don't need to buy for your bike, but this state of the art stem cap is not one of those useless things. It was designed with you, yes you, in mind. Molded around the tightest molecular combination of polymers, this stem cap makes you more aerodynamic than a B-2 spirit stealth bomber. Don't know what that is? Look it up. No. Don't waste time. Buy this stem cap and go race down a mountain, or a hill, or your driveway. Who cares? Go ride your bike. Worldwide Cyclery Top Cap Headset Top Cap

by Worldwide Cyclery

—$21.95

The absoluteBLACK integrated headset top cap is a one-piece top cap and bolt, with 5mm hex socket. It is designed to fit every standard starnut. One piece design is lightweight (only 4g) Not suitable for "expanding" star nuts with a steel coil spring Compatible with the ENVE compression plug Item Specifications Color Black Defined Color Black Includes Star Nut No absoluteBLACK Integrated Headset Top Cap and Bolt Headset Top Cap EAN: 5110846001897

by absoluteBLACK

—$11.99

Problem Solvers Headset Top Caps Item Specifications Color Black S.H.I.S. Clamp Diameter 28.6 Problem Solvers Top Caps Headset Top Cap UPC: 708752073753

by Problem Solvers

—$18

There are a lot of things you don't need to buy for your bike, but this state of the art stem cap is not one of those useless things. It was designed with you, yes you, in mind. Molded around the tightest molecular combination of polymers, this stem cap makes you more aerodynamic than a B-2 spirit stealth bomber. Don't know what that is? Look it up. No. Don't waste time. Buy this stem cap and go race down a mountain, or a hill, or your driveway. Who cares? Go ride your bike. Worldwide Cyclery Top Cap Headset Top Cap

by Worldwide Cyclery

—$15.20

The Salsa Split Pivot Dropout Tool Top Cap is a 22mm socket designed for in-the-field derailleur hanger replacement of Salsa suspension frames featuring Split Pivot technology. The Dropout Tool is designed to double as a top cap for a standard threadless stem/headset assembly, so that it will always be conveniently available in the event of a hanger failure. This tool is intended for trailside repairs only. Once you return back to base, use a torque wrench to achieve the proper torque spec of 18Nm. This handy tool works as a headset top cap until you need it, and when combined with a 6mm hex wrench, turns into a socket for removing the Pivot Bolt to change your derailleur hanger For all Salsa Split Pivot suspension models Integrated 22mm socket design interfaces axle nut to field change the derailleur hanger Operated via 6mm hex key found on most mini tools Takes place of standard top cap Reduces the need to carry 22mm wrench or socket in your pack Lightweight, black anodized aluminum bolt included 13g Lightweight aluminum bolt Item Specifications Color Black Defined Color Black Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Salsa Split Pivot Dropout Tool Top Cap Headset Top Cap UPC: 657993039540

by Salsa

—$21.95

The absoluteBLACK integrated headset top cap is a one-piece top cap and bolt, with 5mm hex socket. It is designed to fit every standard starnut. One piece design is lightweight (only 4g) Not suitable for "expanding" star nuts with a steel coil spring Compatible with the ENVE compression plug Item Specifications Color Gold Defined Color Gold Includes Star Nut No absoluteBLACK Integrated Headset Top Cap and Bolt Headset Top Cap EAN: 5110846002825

by absoluteBLACK

—$28

The new Trail One Top Cap & Spacer Kit is made to finish out the look of our bar, stem & grip setup. Designed to match the angles and finish of our Rockville, Viking and Slickrock stem, the kit comes in Black, Raw/Clear Ano, and Bronze. Included in the kit is the top cap which is also a 5mm spacer, as well as 2x 5mm spacers and 1x 10mm spacer. An alloy bolt comes with the kit, a silver bolt come with the Raw kit, and a black bolt with the Black and Bronze kit. There is a Top Cap Titanium Upgrade Bolt option that's offered in 7 different colors. To See the official Trail One website Click Here! See this product on the Trail One Site Here! Don't forget to check out the Trail One philanthropy projects at The Trail One Treasury Trail One Components Top Cap & Spacer Kit Headset Top Cap

by Trail One Components

—$28

The new Trail One Top Cap & Spacer Kit is made to finish out the look of our bar, stem & grip setup. Designed to match the angles and finish of our Rockville, Viking and Slickrock stem, the kit comes in Black, Raw/Clear Ano, and Bronze. Included in the kit is the top cap which is also a 5mm spacer, as well as 2x 5mm spacers and 1x 10mm spacer. An alloy bolt comes with the kit, a silver bolt come with the Raw kit, and a black bolt with the Black and Bronze kit. There is a Top Cap Titanium Upgrade Bolt option that's offered in 7 different colors. To See the official Trail One website Click Here! See this product on the Trail One Site Here! Don't forget to check out the Trail One philanthropy projects at The Trail One Treasury Trail One Components Top Cap & Spacer Kit Headset Top Cap

by Trail One Components

—$28

The new Trail One Top Cap & Spacer Kit is made to finish out the look of our bar, stem & grip setup. Designed to match the angles and finish of our Rockville, Viking and Slickrock stem, the kit comes in Black, Raw/Clear Ano, and Bronze. Included in the kit is the top cap which is also a 5mm spacer, as well as 2x 5mm spacers and 1x 10mm spacer. An alloy bolt comes with the kit, a silver bolt come with the Raw kit, and a black bolt with the Black and Bronze kit. There is a Top Cap Titanium Upgrade Bolt option that's offered in 7 different colors. To See the official Trail One website Click Here! See this product on the Trail One Site Here! Don't forget to check out the Trail One philanthropy projects at The Trail One Treasury Trail One Components Top Cap & Spacer Kit Headset Top Cap

by Trail One Components

—$19.99

Preload assembly from Cane Creek. Cane Creek Preload Assembly Headset Top Cap UPC: 840226090603

by Cane Creek

—$21.95

The absoluteBLACK integrated headset top cap is a one-piece top cap and bolt, with 5mm hex socket. It is designed to fit every standard starnut. One piece design is lightweight (only 4g) Not suitable for "expanding" star nuts with a steel coil spring Compatible with the ENVE compression plug Item Specifications Color Red Defined Color Red Includes Star Nut No absoluteBLACK Integrated Headset Top Cap and Bolt Headset Top Cap EAN: 5110846001903

by absoluteBLACK

—$14.39

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Item Specifications Color Espresso Defined Color Brown Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 810006806441

by Wolf Tooth

—$10

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Hellbender 70 Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride.Compatible with all 1-1/8 threadless headset uppers Item Specifications Color Silver Defined Color Silver S.H.I.S. Stem Clamp Diameter 28.6 Cane Creek Hellbender 70 Chroma Studio Top Cap Headset Top Cap UPC: 840226140902

by Cane Creek

—$13.90

Details matter when you are building up a bike and the stem cap should not be overlooked. This ultralight and ultra-sleek stem cap fits flush with your stem or can be used with a spacer under it. It is precision machined out of 7075-T6 aluminum for the lowest weight without any performance compromise. Compatible with 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Total weight (cap + bolt): 8 grams (compare to a standard stem cap and steel bolt at 18 grams) Item Specifications Color Raw Silver Defined Color Silver Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap Headset Top Cap UPC: 810006809657

by Wolf Tooth

—$10

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Hellbender 70 Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride.Compatible with all 1-1/8 threadless headset uppers Item Specifications Color Gold Defined Color Gold S.H.I.S. Stem Clamp Diameter 28.6 Cane Creek Hellbender 70 Chroma Studio Top Cap Headset Top Cap UPC: 840226140971

by Cane Creek

—$13.90

It's a stack spacer. It's a top cap. It's both! The Ultralight stem cap is designed specifically for carbon steerers that require that the steer tube extend above the stem. 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Light-weight and durable 6061-T6 aluminum Item Specifications Color Raw Silver Defined Color Silver Includes Star Nut No S.H.I.S. Stem Clamp Diameter 28.6 Wolf Tooth Ultralight Stem Cap with Integrated Spacer Headset Top Cap UPC: 810006809640

by Wolf Tooth

—$10

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Hellbender 70 Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride.Compatible with all 1-1/8 threadless headset uppers Item Specifications Color Blue Defined Color Blue S.H.I.S. Stem Clamp Diameter 28.6 Cane Creek Hellbender 70 Chroma Studio Top Cap Headset Top Cap UPC: 840226140957

by Cane Creek

—$10

If you're upgrading to a new headset and looking to add some vibrancy to make your bike shine, you'll love the Hellbender 70 Top Cap. Available in various colors, you can infuse a touch of personalized style into your ride.Compatible with all 1-1/8 threadless headset uppers Item Specifications Color Red Defined Color Red S.H.I.S. Stem Clamp Diameter 28.6 Cane Creek Hellbender 70 Chroma Studio Top Cap Headset Top Cap UPC: 840226140919

by Cane Creek