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Grade 5 Titanium Double Banjo Bolt for Motorcycle Brake Systems - China Suppliers & Factory Options Available
Key Features
Stable Hydraulic Pressure Transfer Under Hard Braking
Grade 5 titanium has ≥825 MPa yield strength. This helps the titanium double banjo bolt resist elastic deformation during repeated heavy braking. Hydraulic pressure stays more consistent across high-load brake cycles.
Brake Fluid Compatibility for Long Service Life
Titanium forms a stable passive surface and performs well around DOT 4 and DOT 5.1 brake fluids. The double banjo bolt helps keep threaded areas in better condition over time, making future brake line servicing easier.
Pre-Drilled Safety Wire Hole for Race Preparation
The external hex head is machined with a locking wire hole before shipment. Workshops and race teams can install safety wire directly, reducing extra preparation work before race inspection.
Lower Hardware Weight for Race and Custom Builds
Titanium is about 56% of steel density. The bolt keeps the strength required for hydraulic brake systems while reducing small hardware weight. In race and custom builds, those details often add up.
Precision Hex Socket Fitment
Each titanium double banjo bolt is machined from solid titanium bar stock with rolled threads and controlled tolerances. Smooth internal channels help crush washers seat evenly against hydraulic ports for more consistent high-pressure sealing.
Installation & Maintenance Guidance
Verify Thread Pitch and Engagement Depth Before Installation. M10×1.0 is common on many European motorcycles, while M10×1.25 appears more often on Japanese models. Maintain a minimum engagement depth of about 9–10 mm inside the caliper or master cylinder.
Use Three Crush Washers for Dual Brake Line Installations. Use three crush washers when stacking two banjo fittings. Place one washer between the fittings and one on each outer side. Use hand tools or a torque wrench and follow 18–22 N·m as a reference range to avoid damaging aluminum threads.
Technical Specifications
1. Material & Mechanical Properties
| Parameter | Details |
| Material | Grade 5 Titanium (Ti-6Al-4V) |
| Density | 4.43 g/cm³ |
| Tensile Strength | ≥ 895 MPa |
| Yield Strength | ≥ 825 MPa |
| Hardness | 30–36 HRC |
| Corrosion Resistance | High resistance to DOT4 / DOT5.1 environments |
2. Dimensional & Thread Data
| Parameter | Details |
| Diameter | M10 |
| Length Range | 25–35 mm |
| Thread Pitch | 1.0 mm / 1.25 mm |
| Drive Type | Metric |
| Drive Type | External Hex |
3. Finishing & Customization Options
| Parameter | Details |
| Surface Process | Polishing / Anodizing / PVD |
| Logo Engraving | Custom laser marking available |
| Packaging | Bulk cartons / Custom retail sets |
| OEM Customization | Supported (size, length, finish, color) |
Application Scenarios
Motorcycle Applications
● Front Brake Master Cylinder Dual Brake Line Connections
Mounted at the front brake master cylinder where separate hoses feed left and right calipers. The titanium double banjo bolt secures stacked banjo fittings in one outlet and keeps dual brake hose routing more compact.
● Front Brake Caliper Crossover Line Connections
Used where one caliper feeds a crossover brake line to the opposite side. One fastening point secures both banjo fittings and simplifies hose removal during brake service.
● Rear Brake Calipers in Linked or Dual-Circuit Brake Systems
Occasionally used where two hydraulic lines meet at rear brake assemblies. Seen in linked braking layouts and selected race builds with additional hydraulic circuits.
Extended Applications
● Dual-Circuit Hydraulic Handbrake Systems
Seen on drift cars and rally builds using independent hydraulic handbrakes. The titanium double banjo bolt secures stacked banjo fittings at the master cylinder and keeps hydraulic routing simpler around the assembly.
Frequently Asked Questions
What are the main benefits of using Grade 5 Titanium for double banjo bolts?
Grade 5 Titanium offers an excellent strength-to-weight ratio (being about 56% the density of steel) and high yield strength (≥825 MPa). This prevents elastic deformation under heavy braking, ensuring stable hydraulic pressure transfer.
Is this titanium double banjo bolt compatible with standard brake fluids?
Yes, the titanium material forms a highly stable passive surface layer that provides excellent corrosion resistance against DOT 4 and DOT 5.1 brake fluids, ensuring a long service life.
How do I choose the correct thread pitch for my motorcycle?
Generally, M10×1.0 thread pitches are widely used on European motorcycle brands (like Brembo master cylinders), whereas M10×1.25 thread pitches are more common on Japanese motorcycles. Always verify your OEM specifications before purchasing.
How many crush washers are required for installation?
For a dual brake line installation using a double banjo bolt, you must use three crush washers: place one washer between the caliper/master cylinder and the first fitting, one between the two fittings, and one between the second fitting and the bolt head.
What is the recommended installation torque?
It is recommended to use hand tools or a calibrated torque wrench to tighten the bolt within the range of 18–22 N·m. This avoids over-tightening and prevents damage to aluminum threads in the caliper or master cylinder.
Does the bolt come ready for race track inspections?
Yes, the external hex head is pre-drilled with a safety wire locking hole before shipment, allowing race teams and workshops to secure safety wires directly without extra machining.