Bad light stops play

Home around 6pm. Getting dark so little or no opportunity to do anything big, my idea was a quick bike sprint to stretch the legs. A 17km circuit in 40:43..Not too quick but its another 17K under my belt. Average speed about 22.7kmph.......My bike adjustments from yesterday felt overdone, I need to bring the seat back up a bit and move the bars down a bit. I think I could go up the hills quicker but was slower on the flats. It was definately more comfortable. I was obviously sitting a little more upright so this increases wind drag. I did feel though that I got better leverage on the pedals going uphill though. 17K felt like nothing distance wise.....which is a good thing