Mark as stated above you could benefit from getting hold of Fink and/or Friel's books and see what the recommended ironman training schedules look like.
Weight training is probably recommended in there but only once the right amount of bike and swim training is in place and time allows.
If your swim technique is sound that is less of an issue but you may need to over-emphasise bike training sooner rather than later.
Have you already got road shoes? If so, no. If you haven't yet bought the shoes a tri pair would be ok for training rides too.
Relatively well written and straightforward to follow.
I would suggest buying your size. They should fit right then. They are tight by design.
I would suggest that the former would be best for IM distance cycling. Higher cadence around the 80 - 90 RPM mark. That will keep your legs fresher for longer.
And if Josey from Wales doesnt do The Outlaw then I dont know what race he/she should do! Surely a match made in heaven
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