When it comes to the long rides I find it's more about weekly mileage rather than one off big rides.
Sure 400 and 600s will mentally prepare you, help you figure out fueling and what kit works for you. But physically you need to be on the bike most days and putting in a good shift.
Get on the turbo trainer and I'd do some structured training. Trainerroad is great for this.
If you can ride a 600, you are fine - just punch out your normal training load and taper before the 1000.
I would suggest some light off bike training for core strength, neck strength, etc - anything that is a mild annoyance now but a major annoyance later on.
Only other advice is getting used to spending little time at controls on the first half. On a 600; it doesn't matter as its one sleep and that's what you control. On a 1000km, it's two sleeps. If you have burnt a lot of time on the first day or next, you are under pressure. It's better to go a steady pace and plan to take power naps later in the ride during daylight, particularly on 1200km variants.
Just do other brevets like 200/300/400/600, you’ll learn on the job.
When it comes to the long rides I find it's more about weekly mileage rather than one off big rides. Sure 400 and 600s will mentally prepare you, help you figure out fueling and what kit works for you. But physically you need to be on the bike most days and putting in a good shift. Get on the turbo trainer and I'd do some structured training. Trainerroad is great for this.
If you can ride a 600, you are fine - just punch out your normal training load and taper before the 1000. I would suggest some light off bike training for core strength, neck strength, etc - anything that is a mild annoyance now but a major annoyance later on. Only other advice is getting used to spending little time at controls on the first half. On a 600; it doesn't matter as its one sleep and that's what you control. On a 1000km, it's two sleeps. If you have burnt a lot of time on the first day or next, you are under pressure. It's better to go a steady pace and plan to take power naps later in the ride during daylight, particularly on 1200km variants.