First off, I think it's highly appropriate for people to tailor an established program to fit their needs and goals. Exercise is really really not one size fits all.
Second off, how often will you be doing this? This seems like the sort of program I would expect to be 2 or 3 days a week, with ample rest days in between for your muscles to recover and get stronger. Knowing how I react to this kind of lifting, I would be surprised if it affected your biking all that much unless you lift right before riding. I mean, it depends on how hardcore your biking is with speed and hills and how your body, personally, responds, but I bet if you are careful about timing once you get used to it, you'll be fine. And, heck, stronger squats should mean stronger biking, right? :)
One thing you might consider (and maybe the program does this) is alternate front squats in A and back squats in B (with different weights - most people I know can back squat more than they can front squat). Also, given how often you bike, if you're starting with an empty bar I bet it will take a long time before you need to drop to 3x5.
If you're doing strict shoulder presses, I'd definitely try to do the 2.5 increase once you're getting close to the struggle point. That can feel like a huge jump.
Honestly, it sounds like a good program so long as you listen to your body and are okay if you just can't go up weight some weeks. And it looks like you're already doing that - considering what your goals are and modifying appropriately.
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Second off, how often will you be doing this? This seems like the sort of program I would expect to be 2 or 3 days a week, with ample rest days in between for your muscles to recover and get stronger. Knowing how I react to this kind of lifting, I would be surprised if it affected your biking all that much unless you lift right before riding. I mean, it depends on how hardcore your biking is with speed and hills and how your body, personally, responds, but I bet if you are careful about timing once you get used to it, you'll be fine. And, heck, stronger squats should mean stronger biking, right? :)
One thing you might consider (and maybe the program does this) is alternate front squats in A and back squats in B (with different weights - most people I know can back squat more than they can front squat). Also, given how often you bike, if you're starting with an empty bar I bet it will take a long time before you need to drop to 3x5.
If you're doing strict shoulder presses, I'd definitely try to do the 2.5 increase once you're getting close to the struggle point. That can feel like a huge jump.
Honestly, it sounds like a good program so long as you listen to your body and are okay if you just can't go up weight some weeks. And it looks like you're already doing that - considering what your goals are and modifying appropriately.
Good luck!