It’s very difficult to give a specific number. This depends on how long you are coached for, your fitness level when starting, how long you’ve been riding for, etc. There are other considerations when looking at improvement as well. For example, when training for a target event you may see a good 5% increase in your aerobic power outputs in 3 months, but on event day if you nail your nutrition, pacing, and other non-fitness elements, that could result in a 20% faster time compared to baseline. The one thing we can say is there is no more effective and enjoyable way to improve your cycling than by working 1:1 with a university qualified, experienced cycling coach like we have here at Nero Coaching.