I am in a similar position, in that my weight has levelled out at 95kg, starting to drop now though. I was/still cycle approx 150 miles a week and its not just bumbling along either more like 17/18 avg mph. However I have found the myfitnesspal app brilliant for just logging what I eat and keeping count. I've set myself a target 90kgs and lost 1 kg in the last week. I`ve cut out the biscuits and opted for healthier options for breakfast and lunch. I also try and not blow out at weekends so that I can remain on track. As cyclists I think its easy to fall into the trap of stuffing yourself as you feel you can but that is the danger. Also a point to note is that you can look and feel thinner and still be the same weight, that is toning, which I think is what happened to me as stayed same weight but waste size dropped.