Free 2-Day Shipping on Orders Over $50
Winter Kit Special * Save 20% When You Buy a Top & Bottom
  • OneUp Components EDC Top Cap
  • OneUp Components EDC Top Cap
  • OneUp Components EDC Top Cap
  • OneUp Components EDC Top Cap
  • OptionsOneUp Components -
  • OneUp Components -
  • OneUp Components -
  • OneUp Components -
OneUp ComponentsEDC Top Cap

Item # OUC000J

Select options
  • Cancel
  • Select options
  • Black, One Size ($24.99)
  • Green, One Size ($24.99)
  • Blue, One Size ($24.99)
  • Orange, One Size ($24.99)
save for later
  • 100% Guaranteed Returns
  • Free 2-Day Shipping
    on orders over $50

Item # OUC000J

Something for everyone.

It's rare that the entire Competitive office agrees about anything, but the OneUp Components EDC Top Cap has something to please all of us. For the Lycra-clad XC rocketship pilots, the claimed weight of 4.2g gives it a legitimate shot at being the lightest top cap in production; for the enduro bomber and fat bike adventurer, it houses OneUp's separately sold EDC Tool. That means that the gram counters are happy and those who are more interested in utility than saving weight are happy.

Please note that installing the EDC Top Cap requires the use of OneUp's Tap Kit to thread the inside of the steerer.

  • A top cap for the gram counter and trailside tinkerer
  • Houses OneUp's separately sold EDC Tool
  • Lightest top cap in production when not housing a tool kit
  • Plastic bottom plug supports tool and drains water
  • Recommended only for 1-1/8in aluminum steerer tubes
  • Requires 5mm head set stack and must sit 1-2mm above top of steerer
  • Requires Tap Kit to thread steerer before installation
Tech SpecsWeight
Tech Specs
[top cap] aluminum, [plug] plastic
Recommended Use
mountain biking
Manufacturer Warranty
1 year

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead


Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Required for greatness

  • Familiarity: I've used it several times

This is the part that allows you to experience greatness... in the form of EDC that is. This whole system from OneUp is so well thought out.

Critical Piece

  • Familiarity: I've put it through the wringer

You have to have one of these for your EDC tool install. This thing is simple and brilliant. You will need to buy the tap kit of split one with your riding buddies.

Buy this and you are one step closer to lightening the weight on your back or hips!

If you want the EDC tool you need this.

  • Familiarity: I've put it through the wringer

See above. Comes in multiple colors, which is nice.


  • Familiarity: I've put it through the wringer

Must purchase for the EDC tool but worth every penny!

So Good

  • Familiarity: I've put it through the wringer

If you ride a trail bike you need this. Awesome way to carry the EDC tool. Super convenient.

Great upgrade to shed weight

  • Familiarity: I've used it several times

Not only does this let you lose weight compared to a standard top cap and bolt set, but it also lets you run the EDC tool, which is an awesome way to carry your necessary tools on the bike with you.

It comes with all the parts you need, including a plethora of extra headset spacers which are nice to have around, even if you don't use them on the bike. The top cap uses a cassette tool, so make sure you have one of those, or purchase the EDC tool which includes a tool in it.