NIUJU BIGROCK Gen 2 Integrated Handlebar CNC Aluminum Headset Spacers

These NIUJU headset and steerer spacers are CNC machined from aluminum alloy for selected BIGROCK Gen 2 integrated handlebar installations. Choose the version for the corresponding frame, headset and cockpit interface before ordering.

Available Options

Select the exact option that matches your setup:

• SL8 to BIGROCK Gen 2 Top Spacer
• FSA to BIGROCK Gen 2 Top Spacer 13.5mm (Reacto / Bianchi etc.)
• Old Emonda to BIGROCK Gen 2 Top Spacer (6th Gen Madone SLR)
• SCOTT Addict OD2 to BIGROCK Gen 2 Headset Base
• Old Propel 2 to BIGROCK Gen 2 Headset Base
• New Propel to BIGROCK Gen 2 Top Spacer + Reinforcement Block
• New Propel to BIGROCK Gen 2 Headset Base + Reinforcement Block
• Top Spacer OD1 5mm ×2 (28.6mm Steerer)
• Top Spacer OD2 5mm ×2 (31.8mm Steerer)
• New TCR OD1 Internal Routing to BIGROCK Gen 2 Adapter Spacer 13mm (New DEFY OD1 Compatible)
• New TCR OD2 Internal Routing to BIGROCK Gen 2 Adapter Spacer 13mm (New DEFY OD2 Compatible)
• Custom Frame (Please Confirm)

Fitment, Materials & Installation Details

Product Features

Designed for BIGROCK Gen 2 Integrated Cockpit

Specifically developed for:

• BIGROCK Gen 2 integrated handlebars
• Integrated road bike cockpit systems
• Custom fork steerer and headset setups

Provides accurate fitment and a clean OEM-style appearance.

Custom Integrated Headset Solution

Designed to solve common integrated cockpit fitting requirements:

• Perfectly matches handlebar and headset transition
• Creates a cleaner front-end appearance
• Helps achieve a professional integrated cockpit look
• Suitable for custom bike builds

Premium CNC Machined Construction

Manufactured with precision machining:

• Accurate dimensions
• Smooth surface finish
• Reliable durability
• Consistent quality

Designed for high-end road bike applications.

Lightweight Performance Design

Optimized for modern performance bikes:

• Lightweight construction
• Minimal visual bulk
• Clean aerodynamic appearance
• Perfect for premium carbon frame builds

Seamless Cockpit Integration

The spacer design helps create:

• Smooth handlebar-to-frame transition
• Improved overall cockpit aesthetics
• Professional race bike appearance

Ideal for riders who care about both performance and details.

Specifications

• Brand: NIUJU
• Compatibility: BIGROCK Gen 2 Integrated Handlebar
• Application: Integrated Headset Spacer / Steerer Spacer
• Material: Premium Aluminum Alloy
• Manufacturing Process: CNC Machined
• Feature: Custom Fit / Lightweight / Integrated Design

Package Includes

• Integrated Headset Spacer ×1
  (Please select the correct size/version before ordering)

Important Notes

• This product is designed specifically for BIGROCK Gen 2 integrated handlebar systems.
• Please confirm your handlebar and headset specifications before purchase.
• Custom sizes or special requirements can be discussed before ordering.