RISK RA150 Bicycle Headset Bearing 41/41.8/47/49/52mm Sealed Steel Double Bearing for MTB Road Bike Headset Repair

Upgrade or repair your bicycle headset with the RISK RA150 Sealed Steel Headset Bearing. Designed for smooth steering and long-lasting performance, this bearing is suitable for common bicycle headset sizes and is ideal for MTB, road bikes, gravel bikes, folding bikes, and other bicycles using compatible headset systems.

Made from selected steel material, the bearing features a sealed structure with internal steel balls, a ball retainer, high-viscosity grease, and waterproof sealing rings. It provides smooth rotation, quiet operation, good sealing performance, and reduced maintenance during daily riding.

Multiple sizes are available to cover common headset bearing replacement needs. Please check your original bearing size carefully before purchasing, especially 41mm and 41.8mm, as these two sizes are not interchangeable.

Key Features

• Brand: RISK
• Model: RA150
• Material: Steel
• Type: Bicycle headset bearing
• Sealed structure for better waterproof protection
• Smooth and flexible rotation
• Quiet operation with low friction
• Built-in high-viscosity grease for lubrication and rust protection
• Steel balls with retainer for stable performance
• Laser-engraved bearing size marking
• Multiple sizes for common bicycle headset standards
• Suitable for headset repair, replacement, and conversion use

Product Specifications

Size Options

Suggested SKU List for Independent Store

Variant Setup Recommendation

Option Name

Size

Variant Values

• 41mm
• 41.8/42mm
• 47mm
• 49mm
• 52mm

Compatibility

This product is suitable for bicycles using compatible headset bearing sizes, including:

• Mountain bikes
• Road bikes
• Gravel bikes
• Folding bikes
• City bikes
• E-bikes
• Bicycle headset repair and replacement

Before purchasing, please compare the size marking on your original bearing or measure the following dimensions:

• Outer diameter
• Inner diameter
• Bearing height
• Chamfer angle

Important Notes

• 41mm and 41.8/42mm are different sizes and cannot be mixed.
• Please measure your original headset bearing before placing an order.
• Manual measurement may have slight deviation.
• Product images and measurements are for reference only.
• Bearing only, headset or frame parts are not included.

Package Includes

1 x RISK RA150 Bicycle Headset Bearing