Originally Posted by
cubewheels
If you're a lightweight rider, you have an option to pedal out of the saddle for longer periods.. This will help beef up the arms!
I do a lot of out of the saddle riding lately and now look kinda like Popeye. Beefy arms and legs but with thin torso!
Got you beat on the Popeye look: 5'8", 120 pounds, a total of 55 years of fast training rides with a lot of climbing out of the saddle (including on track bikes in very hilly southern Connecticut and Baltimore County), and my upper arms persist in being no larger than my forearms.