Saris/CycleOps M2 Trainer Noise

Hey everyone,

Just wanted to check with others if a rhythmic “thumping” noise is common with this trainer. It appears to be made by the resistance unit as it doesn’t matter what bike is on the trainer or what speed it’s spinning it’s always the same loudness and rhythm. It also doesn’t make any noise if I just spin the roller without it connect to a bike.