Chain Guard Replacement (B'Twin Rockrider 500 26")
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Custom designed chain guard (bashguard) for the B'Twin Rockrider 500 26" (Neon Orange edition)
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Custom-designed chain guard (bashguard) for the B'Twin Rockrider 500 26" (Neon Orange edition).
The original one did not survived during a minor crash :)
Created as a durable (or not) 3D-printed replacement for the original stock plastic guard that often cracks or wears out over time. It protects the chain from trail debris and light impacts while keeping your trousers clean and free from chain grease.
The chain guard bends a little in the area where the crank arm passes, but I don't see this as a problem for normal use. If it breaks, I will modify the guard so it will not bend anymore :)
Specifications:
- Compatible Model: B'Twin Rockrider 500 26" (and other B'Twin cranksets sharing identical dimensions)
- Outer Diameter: 185 mm
- Bolt Center Distance (PCD / Center-to-Center): 140.8 mm
- Minimum Recommended Material: PETG (provides high impact resistance, essential flexibility, and UV/weather durability for outdoor use), cheap :)
Recommended Print Settings:
- Material: PETG
- Layer Height: 0.20 mm
- Perimeters / Walls: 3 – 4 (crucial for structural integrity around the mounting hole areas)
- Infill: 20% – 30% (Gyroid or Grid)
- Supports: None (prints flat on the build plate)
- Build Plate: Textured PEI sheet (recommended for optimal PETG adhesion and smooth release)