Onyx Cone 8mm

Product Overview The Onyx Cone 8mm is a precision alloy cone component designed for custom Onyx hub builds. The 8mm size accommodates standard BMX bearing configurations. Manufactured as a custom component, each cone is made to order for exact fit specifications on your Onyx hub assembly.

Key Features

• Alloy Construction – Lightweight aluminum alloy resists corrosion and provides durable bearing surface without excessive weight
• 8mm Size – Standard sizing for BMX hub bearing applications; compatible with matching bearing cups and races
• Precision Manufacturing – Custom-manufactured to exact specifications for smooth bearing operation and proper cone seating
• Bearing Surface Design – Engineered cone geometry ensures even bearing race contact and consistent rotational characteristics
• Custom Made-to-Order – Each cone manufactured individually to match your specific Onyx hub build and customization choices
• Sold by Unit – Purchase individual cones as needed for your custom build configuration

Technical Specifications

• Component Type: Bearing cone
• Size: 8mm
• Material: Alloy (aluminum)
• Compatibility: Onyx custom hubs
• Manufacturing: Custom made-to-order
• Production Timeline: 3–4 weeks standard; up to 4 weeks in some cases due to custom build backlog
• Quantity: Sold individually by unit

Compatibility and Ideal Use Cases

• Fits: Onyx custom-built hubs with 8mm bearing specification
• Best For: Custom Onyx hub builds requiring bearing cone replacement or assembly; loose-ball bearing configurations
• Ideal Riders: Those building custom Onyx hubs with specific design and customization preferences; riders performing hub maintenance
• Installation: Cone threads onto hub axle; hand-tighten until slight bearing preload is felt, then back off slightly for free rotation

Important Notes – Custom Order Requirements

• Made-to-Order and Final Sale – All Onyx products are custom-manufactured and final sale; non-returnable regardless of circumstances
• Production Delays – Current lead time is 3–4 weeks from order to completion due to custom build backlog; some orders may take up to 4 weeks
• US Shipping – Orders placed in the USA ship directly from Onyx upon completion
• International Shipping – Orders shipping outside the USA route through BRG in California before final delivery
• Verification Required – Double-check all specifications before confirming order; changes after manufacturing begins are not permitted
• Quantity Selection – Determine exact cone quantity needed for your build before ordering; each unit sold individually (typically one per hub side)

Maintenance and Installation Notes Cone tightness directly affects hub bearing play and smoothness. Proper adjustment requires light preload with free rotation; excessive tightness increases drag and bearing wear. If replacing worn cone, verify matching cup condition to ensure smooth operation. Reusable component suitable for repeated adjustments and maintenance throughout hub lifespan.