I've noticed bike rides continue to be the one area that the Surge really lacks in detecting properly too, and doubt it's going to be addressed as it's past end of life. How are you gauging its accuracy besides personal perception? Have you tried calculating your rides with another tracker at the same time? Are you implying it worked more accurately for you previously? Myself, I've learned to accept the Surge won't accurately record my bike rides either. It'll detect I was bike riding, but, as you've experienced, won't show me the numbers I'd anticipate either. I just roll with it, or if seriously concerned to log, will switch to another tracker for bike rides. It's really the one area that consistently and persistently doesn't seem to capture as well as other activities. Perhaps, try choosing bike ride activity when beginning, I've found doing this, as well as enabling GPS has increased my overall accuracy. #YMMV
