PaulG1971, I’m going to give you an answer that is probably out of step with the rest of the forum:
I won’t go all the way to say it’s ‘wrong’ but you need to do rides longer than two hours if you are preparing for a 112 mile sub 5hr solo ride. My strategy is to schedule long rides on Saturday & (again, contrary to popular advice) I like to work those long rides up to the actual distance I’ll be racing.
This gives you the confidence you can do it, for sure, but it also gives you the chance to not only prepare a successful nutrition/hydration program, but to actually practice it. What do you need, when do you need it, etc. So many nutrition/hydration problems don’t show themselves until the last 25% of a race. Figure that stuff out ahead of time.
I like to do my last race pace long ride three to four weeks before race day. For me, doing long rides at full pace any closer to race day doesn’t produce meaningful results by race day. But I’m an old guy so your results may differ.