Mountain bike chain guide (for YT Jeffsy)

thingiverse

I designed and built a custom chain guide for my friend's mountain bike, a YT Jeffsy frame, using two 14mm apart M5 holes. The design can be easily adapted to fit other frames by modifying the holder accordingly. If you need the original Solidworks file, feel free to get in touch with me. I printed the guide with high resolution (0.2mm) and PLA filament, and it has held up without any issues so far. The chain guide consists of a main holder, a front piece, a back piece for the guide itself, and multiple spacers that can be replaced with washers if needed. The design allows for adjustable height, making it suitable for use with both large and small chainrings. To assemble the chain guide, you will need two M5 round-head screws, one M5 flathead screw, and one M5 nut.