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Headset Star Nuts & Compression Caps

Find your bike headset star fangled nuts & compression caps at Performance Bicycle with options like 1", 1-1/8", & more.

Star Nuts & Compression Caps - Headset Parts

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Showing 1 to 45 of 83 Products
Zipp Aluminum Stem Top Cap w/ T25 Bolt (1-1/8")
Not yet reviewed
$13.99
Sale: $13.25
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Zipp Aluminum Stem Top Cap w/ T25 Bolt (1-1/8")
Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Gold) (1-1/8")
Not yet reviewed
$9.99
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Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Gold) (1-1/8")
Ritchey Headset Top Cap w/ Bolt (WCS Black) (1-1/8")
Not yet reviewed
$10.95
Sale: $9.95
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Ritchey Headset Top Cap w/ Bolt (WCS Black) (1-1/8")
Specialized Extended Expander Plug For Carbon Steerer Tubes (1-1/8") (Alloy)
Not yet reviewed
$19.99
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Specialized Extended Expander Plug For Carbon Steerer Tubes (1-1/8") (Alloy) (Tarmac/Allez Sprint)
Available in Stores
Cane Creek Ancora Expansion Plug (Gold) (1-1/8")
Not yet reviewed
$24.99
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Cane Creek Ancora Expansion Plug (Gold) (1-1/8")
Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Black) (5mm)
Not yet reviewed
$9.95
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Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Black) (5mm)
Expected Wed, May 14, 2025
FSA Steel Star Nut (Black) (1-1/8")
Not yet reviewed
$3.00
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FSA Steel Star Nut (Black) (1-1/8")
Specialized Concave Alloy Top Cap w/ Star Nut Assembly (Black)
Not yet reviewed
$15.99
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Specialized Concave Alloy Top Cap w/ Star Nut Assembly (Black) (For Alloy Steerers) (1-1/8")
Specialized Aethos Topcap (Black) (1-1/8")
Not yet reviewed
$5.99
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Specialized Aethos Topcap (Black) (1-1/8") (Alloy)
Specialized Venge/Tarmac SL7 Headset Topcap & Bolt Kit
Not yet reviewed
$7.99
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Specialized Venge/Tarmac SL7 Headset Topcap & Bolt Kit
Cane Creek AER Top Cap (Black) (Alloy) (1-1/8")
Not yet reviewed
$12.99
Sale: $1.99
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Cane Creek AER Top Cap (Black) (Alloy) (1-1/8")
Ritchey WCS Carbon Steerer Tube Compression Plug (Black)
Not yet reviewed
$18.95
Sale: $16.95
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Ritchey WCS Carbon Steerer Tube Compression Plug (Black)
Ritchey Comp Stem Top Cap w/ Bolt (1-1/8")
Not yet reviewed
$10.95
Sale: $9.95
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Ritchey Comp Stem Top Cap w/ Bolt (1-1/8")
Aheadset Star Nut (1-1/8") (Steel or Aluminum Steerer)
Not yet reviewed
$1.99
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Aheadset Star Nut (1-1/8") (Steel or Aluminum Steerer)
Available in Stores
OneUp Components EDC Threaded Top Cap (Silver) (1 1/8") (Alloy)
Not yet reviewed
$28.99
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OneUp Components EDC Threaded Top Cap (Silver) (1 1/8") (Alloy) (Includes Headset Spacers)
Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Silver) (1-1/8")
Not yet reviewed
$9.99
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Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Silver) (1-1/8")
Aheadset Universal Preload/Top-Cap Bolt
Not yet reviewed
$1.89
Sale: $1.00
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Aheadset Universal Preload/Top-Cap Bolt
Specialized Carbon Steerer Tube Plug (Black) (Road/Mountain)
Not yet reviewed
$9.95
Sale: $7.49
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Specialized Carbon Steerer Tube Plug (Black) (Road/Mountain)
Available in Stores
Aheadset Star Nut (1")
Not yet reviewed
$2.99
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Aheadset Star Nut (1")
Thomson Top Cap for 1-1/8" Headset (Black)
Not yet reviewed
$9.95
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Thomson Top Cap for 1-1/8" Headset (Black)
Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Raw Silver)
Not yet reviewed
$9.95
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Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Raw Silver) (5mm)
Expected Sun, May 25, 2025
Specialized Crux/Aethos Headset Plug Expander Assembly (Black)
Not yet reviewed
$12.99
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Specialized Crux/Aethos Headset Plug Expander Assembly (Black) (Lightweight Version) (For Carbon Steerer)
Reverse Components Alloy Ahead Top Cap with Screw (Light Green)
Not yet reviewed
$12.49
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Reverse Components Alloy Ahead Top Cap with Screw (Light Green)
Specialized 2014-16 Topcap & Starnut
Not yet reviewed
$15.99
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Specialized 2014-16 Topcap & Starnut
ENVE Compression Plug (1-1/8")
1 review Average Rating:5
$30.00
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ENVE Compression Plug (1-1/8")
Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Red) (1-1/8")
Not yet reviewed
$9.99
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Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Red) (1-1/8")
Aheadset Hollow Top Cap (Bolt & Starnut for 1-1/8" Threadless)
Not yet reviewed
$8.99
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Aheadset Hollow Top Cap (Bolt & Starnut for 1-1/8" Threadless)
Available in Stores
Profile Design Universal Gap Cap (Fits 1" or 1-1/8") (Aluminum Top)
Not yet reviewed
$18.00
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Profile Design Universal Gap Cap (Fits 1" or 1-1/8") (Aluminum Top)
Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Blue) (1-1/8")
Not yet reviewed
$9.99
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Cane Creek Hellbender 70 Chroma Studio Headset Top Cap (Blue) (1-1/8")
Specialized 2010 Topcap, Bolt, & Washer (Black) (For Adjustable Stem)
Not yet reviewed
$5.99
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Specialized 2010 Topcap, Bolt, & Washer (Black) (For Adjustable Stem)
FSA Compressor Expander Plug & Top Cap (Black) (1")
Not yet reviewed
$15.00
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FSA Compressor Expander Plug & Top Cap (Black) (1")
FSA Compressor Expander Plug & Top Cap (Black) (1-1/8")
1 review Average Rating:1
$15.00
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FSA Compressor Expander Plug & Top Cap (Black) (1-1/8")
OneUp Components EDC Threadless Carrier (Red)
Not yet reviewed
$39.99
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OneUp Components EDC Threadless Carrier (Red)
Absolute Black Integrated Top Cap for Headset (Black)
Not yet reviewed
$21.95
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Absolute Black Integrated Top Cap for Headset (Black)
OneUp Components EDC Lite Carrier & Multi-Tool (Black)
Not yet reviewed
$39.99
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OneUp Components EDC Lite Carrier & Multi-Tool (Black)
OneUp Components EDC Threadless Carrier (Orange)
Not yet reviewed
$39.99
View Details
OneUp Components EDC Threadless Carrier (Orange)
Reverse Components Alloy Ahead Top Cap with Screw (Red)
Not yet reviewed
$12.49
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Reverse Components Alloy Ahead Top Cap with Screw (Red)
Specialized Headset 2016 Venge Vias Rim Brake Expander Plug
Not yet reviewed
$17.99
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Specialized Headset 2016 Venge Vias Rim Brake Expander Plug
Specialized 2016 Venge Vias Hydraulic Disc Expander Plug Assembly
Not yet reviewed
$17.99
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Specialized 2016 Venge Vias Hydraulic Disc Expander Plug Assembly
Reverse Components Alloy Ahead Top Cap with Screw (Black)
Not yet reviewed
$12.49
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Reverse Components Alloy Ahead Top Cap with Screw (Black)
Reverse Components Alloy Ahead Top Cap with Screw (Purple)
Not yet reviewed
$12.49
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Reverse Components Alloy Ahead Top Cap with Screw (Purple)
Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Espresso) (5mm)
Not yet reviewed
$9.95
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Wolf Tooth Components Ultralight Stem Cap w/ Integrated Spacer (Espresso) (5mm)
Expected Wed, May 14, 2025
Reverse Components Alloy Ahead Top Cap with Screw (Orange)
Not yet reviewed
$12.49
Back Order
Reverse Components Alloy Ahead Top Cap with Screw (Orange)
Specialized Epic HT Headset Top Cap (Black) (FSA H2037) (OD 47MM)
Not yet reviewed
$5.99
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Specialized Epic HT Headset Top Cap (Black) (FSA H2037) (OD 47MM)
Specialized Roubaix/Ruby 2017 Fork Top Cap Assembly
Not yet reviewed
$5.99
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Specialized Roubaix/Ruby 2017 Fork Top Cap Assembly
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