MX Rear Brake Master Cylinder Guard
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A 3D-printed protectiveand decorative guard for the rear brake master cylinder on MX, Enduro and Pitbike motorcycles.
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Model information
- Source
- Printables
- Category
- Mechanical Parts
- License
- Creative Commons — Attribution — Share Alike
A practical 3D-printed protective guard designed for the rear brake master cylinder on motocross, enduro and pitbike motorcycles.
The guard helps protect the rear brake master cylinder from contact, impacts and debris during off-road riding. Its mounting design uses two M6 mounting bolts, making it suitable for motorcycles with a compatible mounting layout.
The model has been personally tested on the BSE Z4 and Minirocket 250RX.
Features
Designed for MX, Enduro and Pitbike motorcycles
Helps protect the rear brake master cylinder from impacts and debris
Two-bolt mounting design
M6 mounting bolts
Approximately 47.5 mm center-to-center mounting-hole spacing
Compact design suitable for off-road motorcycles
3D printable and easy to replace
Tested on the BSE Z4 and Minirocket 250RX
Compatibility
The guard is intended for motorcycles with a rear brake master cylinder mounted using two M6 bolts with approximately 47.5 mm center-to-center spacing.
It may also fit other motorcycle brands and models with the same mounting arrangement.
Compatibility cannot be guaranteed by bolt spacing alone. Before printing, check the mounting-hole positions, available clearance and shape of the master cylinder on your motorcycle.
Installation
Check that the guard matches your motorcycle's mounting points.
Position the guard at the rear brake master cylinder.
Secure it using the appropriate mounting hardware.
Check that the guard does not interfere with the brake pedal, hydraulic hose, reservoir or any moving components.
Before riding, verify that the rear brake operates normally and that all fasteners are secure.
Do not ride if the guard interferes with any part of the braking system.
Recommended print settings
These settings have been tested with this model.
Material: PETG recommended
Layer height: 0.20 mm
Perimeters / wall loops: 4–5
Infill: 15% Gyroid
Supports: Check the slicer preview and use the appropriate print orientation
Printing notes
The guard has been tested with 4–5 perimeters and 15% Gyroid infill. The multiple wall loops form most of the part's structure, so a high infill percentage is unnecessary.
PETG is recommended for this functional protective accessory. Choose a suitable material and print orientation for the expected riding conditions.
After installation, regularly inspect the guard for cracks, damage or loose fasteners. Make sure it does not interfere with the rear brake pedal, hydraulic hose or any moving components.
Files included
STL: Model geometry for use with your preferred slicer.
3MF: Model file for convenient import and print preparation.
Designed as a practical protective accessory for off-road motorcycle maintenance and riding.
Important: This is a printed protective accessory, not a replacement for any original brake component. Inspect it regularly for cracks, damage or loose fasteners.