This bicycle chain keeper is designed to maintain tension on the chain when the rear wheel is removed, preventing it from tangling or causing damage. 

It is used primarily during bike maintenance or transportation, ensuring the chain stays in place and makes tasks like cleaning or tuning easier. 

Printing Tips: 

Use a high-quality filament with durability to withstand chain tension. Consider printing with 20%, or more,  infill for extra strength.

Assembly Instructions: 

Turn the model bolt part into the nut part in clockwise direction.  Slot it onto the rear dropouts in place of the wheel. Ensure the chain is aligned with the integrated channel of the keeper for smooth operation.