I've put together a commuter from a bamboo frame that I recently built using a Shimano Nexus internal geared hub. I used an Ultegra crankset, but due to the conversion to the hub, I only need the smaller front chainring.
Rather than taking the crankset off and replacing with a single chainring crankset, I am looking to replace the large chainring with a "bash guard". I am having trouble finding any sources for such.
Do any of you know if they exist (130 BCD, 5 bolt design to fit the Ultegra crank)? Any leads would be helpful.