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Titanium Post Mount Disc Brake Mount – Precision Disc Brake Tab for Custom Frames
Titanium Post Mount Disc Brake Mount – Precision Disc Brake Tab for Custom Frames
Titanium Post Mount Disc Brake Mount – Precision Disc Brake Tab for Custom Frames
TITANIUM BIKE

Titanium Post Mount Disc Brake Mount – Precision Disc Brake Tab for Custom Frames

$28.00 $0.00
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What Is a Post Mount?

The Post Mount is the industry-standard threaded mounting interface for disc brake calipers. Unlike ISO mounts (which use unthreaded holes with bolts passing through from the opposite side), Post Mount features two threaded M6×1 holes spaced 74mm apart on the frame or fork. The caliper bolts directly into these threaded holes — with or without adapters depending on rotor size.

Key Post Mount specifications:

  • Hole spacing: 74mm (center-to-center)

  • Thread: M6×1 (standard metric coarse)

  • Mounting orientation: Caliper bolts directly into frame/fork

  • Thread engagement: 9-13mm minimum recommended for secure mounting

NOTE:PACKAGE ONLY INCLUDE 1PCS

Precision-Mitered for 38mm OD Round Dropouts

This Post Mount is specifically designed for 38mm outer diameter round dropouts. The mount requires mitering (contour-matching) to perfectly fit the dropout's curved profile — ensuring a clean, strong weld joint and proper caliper alignment.

Rotor Compatibility – 160mm

 

Adapter notes:

  • 160mm rotor: Direct mount (no adapter needed on 160mm-native frames)

Installation Notes

The Post Mount is typically TIG welded onto the frame dropout at the designated mounting position.

Important considerations:

  • Mitering required: The mount must be precisely contoured to match the 38mm dropout radius for proper fit and a clean weld joint

  • Ensure proper alignment before welding — caliper mounting holes must be parallel to the rotor plane

  • Use appropriate heat control to maintain material properties (Grade 5 titanium requires proper shielding gas)

  • Post-weld cleaning recommended for cosmetic finish

  • Face the mount after welding for perfect caliper alignment

  • Minimum thread engagement: 9-13mm of M6 bolt thread

  • Recommended torque: 6-8 Nm for caliper fixing bolts

 

Compatibility

This Post Mount is compatible with:

  • ✅ All Post Mount disc brake calipers (Shimano, SRAM, Magura, TRP, Hope, etc.)

  • ✅ Frames with 38mm OD round dropouts

  • ✅ Custom steel, titanium, and aluminum frames

  • ✅ Rotor sizes 160mm

 

Questions or Custom Orders?

Need a different dropout size, custom thread specification, or have a specific requirement?

📧 info@aerotibike.com
📧 leemom.yang@hotmail.com
💬 WhatsApp: +86 15353018848

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