Bike Chain Tensioner (Sparta-compatible)

⚠ Caution: You are using this part at your own risk.

After the plastic part of the chain tensioner of my old Sparta bike broke, I created this model as a replacement. Printed with PETG at 50% infill, it is doing a good job for me so far, but please use it with care. It is notably thicker than the original molded plastic part it replaces, but should still fit on both sides, even with a hub gear shift as seen in the photo.