The fisheye cap, taken inspiration from camera fisheye lens warp, this cap adds that touch of cool graphics to your bike! Personally our favourite new cap of the drop ✅

Put these on your bike to:

🛠 Get rid of the old, sometimes warn top cap and bolt

⚖️ Lighten up your bike! Every Gram counts 😆

🙋♂️ Join a community of hundreds of HEXCAPS fanatics, (As of 17 June 2024) 495 Bikes with our HEXCAPS on in Australia ALONE! 🔥

What Are MTB Topcaps?

An MTB topcap, also called a stem cap or headset cap, sits at the top of your mountain bike’s fork steerer tube. On a threadless headset, the cap and its centre bolt are used to set the headset bearing preload during adjustment, helping remove unwanted play while allowing the steering to turn freely.

It’s also one of the details you see every time you look down at your bike.

Make Your Bike Yours

A HEXCAPS topcap replaces your plain stock cap with a design that suits your setup. Match your bike’s colours, choose a graphic you love or add an engraved detail to your cockpit.

Explore our MTB topcaps collection to find your favourite design.

Will It Fit My Bike?

HEXCAPS topcaps are designed for standard bicycle headset top-cap setups. Check this product’s specifications for compatibility before ordering.

Bikes with integrated steerer tools, special headset systems or an unusual topcap may need a different solution. Unsure? Send us a photo of your current setup and we’ll help you check.

Is a Bolt Included?

Yes. Each HEXCAPS topcap includes an M6 bolt. You’ll find the design, finish and sizing information in the product details above.