Ultra-Compact Front Fork Riser Block for Bike Smart Trainers
Tired of your indoor training setup taking over your entire living room or training space? This project replaces your front wheel with a sleek, heavy-duty, ultra-compact riser block designed to drastically reduce the footprint of your indoor smart trainer setup.
Perfect for apartments, tight pain caves, or anyone looking to reclaim floor space!
🌟 Key Advantages & Features
 

• Massive Space Saving: Shaves off roughly 30–40 cm of forward length compared to a standard 700c road bike front wheel. Your setup finishes exactly where your fork ends!
   
• Optimized Stability: Features a wide, flared base (12cmx7cm)
• Bambu A1 Friendly Design: The total assembled height is 32.5cm
• Universal Metal Mount Compatibility: The top surface is left completely flat and solid to perfectly accommodate heavy-duty aluminum fork mounts (such as the popular red MUQZI thru-axle/quick-release mount shown in the photos).
   

🛠️ Crucial Printing & Assembly Instructions
To ensure this block can safely support your body weight and withstand handle-bar steering vibrations, please follow these mechanical slice configurations:
1. Material Choice
 

• DO NOT USE STANDARD PLA. PLA creeps and gets brittle under constant load.
   
• Recommended Filament: Use PETG, PETG-CF, ABS, or ASA for industrial durability and impact/vibration resistance.
   

2. Structural Slicer Settings
 

• Wall Loops: Set to at least 6 perimeters (Crucial for vertical shell rigidity).
   
• Global Infill: 25%–30% Gyroid or Cubic (Do not use Grid).
   
• Brim: Use a 10mm outer brim to prevent warping on the tall structures.
   

3. Assembly
 

1. Print the base, the top cap, and the locking dowel pins.
    
2. Drop a bit of superglue or epoxy into the pin slots and press the halves together.
    
3. Place your aluminum fork mount on top, mark your holes, pre-drill small pilot holes into the solid plastic block, and secure the mount with heavy-duty wood or metal screws.
    
4. Mount your fork, clamp your axle, and start riding!
    

If you find this model helpful for saving space in your indoor training cave, please drop a ⭐⭐⭐⭐⭐ review and post your makes! Happy training!