I really don't know other than that the ring is centered dead in the middle of the built in upper chain guide the Wrecker comes stock with which Evil says is 56.5. As for running a smaller ring Evil says the smallest that will fly is a 30t round mainly due to the potential interference of the chain riding on the (huge) swing arm in the higher gears. I run a Raceface 32t oval ring currently. I tried running a 30t ring on my old Wreckoning and I did get some buzz in the highest gear combo. It was not enough of benefit at least with climbing efforts I encounter to make it worthwhile.
Jan. 10, 2022, 4:22 p.m. - Raymond Epstein
I really don't know other than that the ring is centered dead in the middle of the built in upper chain guide the Wrecker comes stock with which Evil says is 56.5. As for running a smaller ring Evil says the smallest that will fly is a 30t round mainly due to the potential interference of the chain riding on the (huge) swing arm in the higher gears. I run a Raceface 32t oval ring currently. I tried running a 30t ring on my old Wreckoning and I did get some buzz in the highest gear combo. It was not enough of benefit at least with climbing efforts I encounter to make it worthwhile.