Realistic FTP improvement with TrainerRoad. Un-fit 40 years old male. Already cycled for about 4 years. Minimum structured training exp

Training
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Thanks for the suggestion. I’ll see how I feel after the SSB2 (especially with a higher FTP setting to tire my body) and decide if I continue with the build phase or repeat the base.

One stupid question, what is TB? Couldn’t find the reference. Thanks.