I've completed a couple of 24 hour solos. If you're planning on doing a race at the end of the year start your training plan now!
Try and have an idea of what you're trying to achieve short term with each ride, hills, endurance, skills, just turning the legs over and also a longer term, like each month. Mix it up to stop yourself getting bored. I did a lot of my training on the road, commuting to work (about twice the distance you are doing) a couple of times a week and every second or third weekend I would do a long road ride with hills. Try and get out to riding 5 or 6 days a weeks. Don't neglect the dirt riding as I found it was not my legs but my neck/shoulders/hands that gave me more bother during the race. So some serious time on the dirt is a must, 6hr or 100K races work well. Sessions on the trainer/spin bike are good for short hard fast work, when you're short of time or the weather is rubbish. Get used to your legs feeling tired and don't forget to taper down for 2 or 3 weeks to freshen up and by that time you'll almost feel guilty for not riding!
Keep a log of your training. Ride some of the same courses every now and then and compare the results. Hopefully you will see some improvement. Knowing you're improving or on track can be a very strong positive influence on your mind and instill good thoughts that you have done the training and can do the race. Mental prepartion is very important and I reckon it plays a big part in determing whether riders keep going or not in a 24hr solo. To test myself mentally I would pick a weekend night in the depth of winter and ride a loop track near home from sundown to sunup on my own to see if I could hack it. You have to learn to play mind games to stay alert or ignore that numb big toe, etc and stick to the plan. Long rides are also a good chance to test your food/drink regime. How many GU's can you stomach? When do you go for the caffeine hit?
Good luck!
Try and have an idea of what you're trying to achieve short term with each ride, hills, endurance, skills, just turning the legs over and also a longer term, like each month. Mix it up to stop yourself getting bored. I did a lot of my training on the road, commuting to work (about twice the distance you are doing) a couple of times a week and every second or third weekend I would do a long road ride with hills. Try and get out to riding 5 or 6 days a weeks. Don't neglect the dirt riding as I found it was not my legs but my neck/shoulders/hands that gave me more bother during the race. So some serious time on the dirt is a must, 6hr or 100K races work well. Sessions on the trainer/spin bike are good for short hard fast work, when you're short of time or the weather is rubbish. Get used to your legs feeling tired and don't forget to taper down for 2 or 3 weeks to freshen up and by that time you'll almost feel guilty for not riding!
Keep a log of your training. Ride some of the same courses every now and then and compare the results. Hopefully you will see some improvement. Knowing you're improving or on track can be a very strong positive influence on your mind and instill good thoughts that you have done the training and can do the race. Mental prepartion is very important and I reckon it plays a big part in determing whether riders keep going or not in a 24hr solo. To test myself mentally I would pick a weekend night in the depth of winter and ride a loop track near home from sundown to sunup on my own to see if I could hack it. You have to learn to play mind games to stay alert or ignore that numb big toe, etc and stick to the plan. Long rides are also a good chance to test your food/drink regime. How many GU's can you stomach? When do you go for the caffeine hit?
Good luck!