Aluminium top cap bolt 30 mm

Coloured aluminium headset bolt

Add even more style to your bike with a coloured bolt for the headset top cap!
It is a small detail that changes everything - perfect as an addition to a personalized top cap or as a quick way to refresh your bike.

Available in many vivid colors - from classic black and silver to striking pink, green or gold.
They fit all the caps available in our shop perfectly.

⭐ Product details:

• ✅ Material: aluminum - light, durable and rust-resistant.

• ✅ Bolt length: 40 mm (a standard that fits most caps and stems).

• ✅ Thread type: M6 - fits standard 1-1/8″ headset threads.

• ✅ Available colours: black, silver, gold, red, pink, blue, green, violet, orange, turquoise.

• ✅ Weight: approx. 1.5 g

• ✅ Mounting: using a 5 mm Allen key (bicycle standard)

🎯 Why it's worth it:

• a great addition to a personalised cap,

• an ideal way to make your bike stand out,

• available as a gift option or as a small cycling present.

The aluminum headset bolt is a simple way to personalize your cockpit - instead of the black steel bolt that comes from the factory on every bike, you fit something with color and character. Aluminum is lighter than steel and does not rust even after seasons of riding in rain and mud.

The M6 thread fits the vast majority of bikes with the 1⅛” standard - MTB, gravel, road, enduro, DH and city bike, both for forks with a fixed threaded steerer tube and for adapters.

Looking for a set? Pair the bolt with cap for rudders with an engraving - together they form a coherent detail on the head tube.

Want to design your own top cap? Use our headset top cap configurator - your design, your color, shipping in 24h.

The M6 aluminum headset bolt is available in over a dozen anodized colors - from classic black and silver, through vivid red, blue and green, to elegant gold and petrol. Each color is electrochemically anodized, not painted, so the color does not come off due to abrasion or UV. Choose a color that matches your frame color or the other details of your bike.

📦 Shipping in 24 hours from Poland - we fulfill orders across the entire European Union. VAT invoice on request.

Want your own pattern on a top cap? Design it in the CapMyRide creator →