
PRO Bike Gear Headset ZS56/40 Ahead Semi Integrated down black
Here’s a ranking of the best selling Bike headsets. To give you a quick overview, we’ve added the most important information about each product. This page always stays fresh and updates automatically.
Double-sealed bearing. Bearing housing made of anodized lightweight metal. High-quality steel bearings. Conversion kits for 1.5-inch steer tubes with 1 1/8-inch fork shafts available.

PRO Bike Gear Headset ZS56/40 Ahead Semi Integrated down black
The InSet I8 headset from Chris King Precision Components is a high-quality solution for cyclists who value precision and durability. This tapered headset is specifically designed for use in modern bicycles, offering excellent performance and easy installation. Made in the USA, the headset features a robust stainless steel construction that not only ensures stability but also provides an appealing aesthetic. Weighing just 0.2 kilograms, it is lightweight and does not unnecessarily add to the overall weight of the bike. The InSet I8 is equipped with a semi-integrated bearing cup type that guarantees smooth functionality and extends the product's lifespan. This headset is an excellent choice for anyone looking for a reliable and high-performance component for their bicycle.
- Tapered headset for modern bicycles
- Made from high-quality stainless steel for durability
- Semi-integrated bearing cup type for smooth functionality
- Lightweight construction at just 0.2 kg.

For mounting the Pro Seat on bikes with Trek Knock Block headset.

- Type: Standard - Stem diameter: 1 1/8" (28.6 mm / 30 mm) - Type: Ahead - Bearing: Ball bearing - Material: Stainless steel/plastic Scope of delivery - Scope of delivery: 1 Ritchey Logic V2 Headset 1 1/8" EC34/28.6 I EC34/30 Headset - Headset type on top: External Cup (EC) - Headset type bottom: External Cup (EC) - Press-in diameter top: 34 mm - Press-in diameter bottom: 34 mm.

The 110 Series Alloy Crown Race from Cane Creek is a high-quality headset designed for precise and stable steering of bicycles. With a tapered design, this headset offers improved fit and performance, which is significant for demanding cyclists. Made in the USA, this headset combines durability and functionality through the use of aluminum, making it an ideal choice for various types of bicycles. The 110 Series Alloy Crown Race is designed for use with semi-integrated bearing cups, providing seamless integration into the head tube. Weighing only 0.05 kg, it is lightweight and does not unnecessarily add to the overall weight of the bike. This headset is an excellent choice for those who value quality and performance.
- Tapered design for improved fit and performance
- Made from durable aluminum
- Suitable for semi-integrated bearing cups
- Lightweight at only 0.05 kg.

The Comp Ahead cap from Ritchey is a high-quality headset designed for precise and reliable steering of bicycles. It is specifically designed for fork steerer diameters of 1 1/8" (28.6 mm) and offers an optimal fit for various bike frames. The cap is kept in a simple black color, making it a versatile addition to any bike. With an inner diameter of 41 mm both at the top and bottom, it meets the standards of the IS system. Weighing only 0.01 kg, it contributes to the overall performance of the bike by minimizing total weight. Made in Taiwan, the Comp Ahead cap combines quality and functionality to meet the demands of cyclists. It is an essential component for anyone who values precise steering and durability.

The CeramicSpeed SLT bearing (Solid Lubrication Technology) for headsets: OHD (Optimized Headset Design) features a unique combination of an oil-encapsulated full polymer and stainless steel materials, resulting in a self-lubricating, corrosion-resistant, and maintenance-free bearing. The micropores in the otherwise solid polymer evenly distribute just enough oil to keep the bearing well-lubricated, while also containing enough oil to be self-lubricating throughout the entire lifespan of the bearing—even when subjected to the harshest conditions. The CeramicSpeed SLT OHD bearing is designed, developed, and handcrafted in Denmark and comes with a lifetime warranty.

Wolf Tooth Precision Headsets are made in the USA from aircraft-grade aluminum with excellent sealing to protect against the elements. They are available in a variety of colors to add some style to your bike. These EC headsets are designed for frames with external bearing cups, meaning the bearing sits outside the frame.
Note: The images may differ from the original; the photos show the 5mm upper units.
Technical specifications:
- Weight: 55-68 g
- Material: 6061 aluminum
- Made in the USA
Compatibility:
- Stack height: 10 mm upper cup (see technical specifications).
- Any frame that uses an external cup headset with an inner diameter of the upper head tube of 34 mm and an inner diameter of the lower head tube of 34 mm, 44 mm, or 49 mm.
- Upper and lower units are sold separately.
- Enduro bearings made of stainless steel are included in both the upper and lower units.
Features of the upper unit:
- Ultra-lightweight top cap with integrated spacer, along with an aluminum screw and a star nut.
- 6 mm cap = 16 mm total height,
- 15 mm cap = 25 mm total height,
- 25 mm cap = 35 mm total height.
- O-ring seal prevents water ingress.
- The specially shaped upper lip seal provides additional protection for the upper bearing against dirt and water.
Features of the lower unit:
- Specially shaped double lip seal at the fork cone to protect the lower bearing from dirt and water.
- 11 mm stack.


The AER series: the lightest headsets in the world.
Aluminum cover 7075
Norglide T-bearing
Top installation diameter (to be measured at the frame): 41.1 mm
Low installation diameter (to be measured at the frame): 41.1 mm
Height of the headset: 16 mm
Weight (manufacturer): 37 g.
Caution: The headset is only suitable for racing bikes.
