Old 04-28-15, 03:16 PM
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Bikes: S-Works Roubaix SL2^H4, Secteur Sport, TriCross, Kaffenback, Lurcher 29er

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Originally Posted by RChung View Post
I get the same thing -- though perhaps not as severe. Most trainers have much less crank inertial load than riding on the road. What this means is that trainers change speed much quicker (both spinning up and slowing down) than on the road. Some people (me, and possibly you) are more sensitive to changes in crank inertial load than others, and it changes the way they pedal. In order to get the same inertial loading I experience on the road I tend to pull back and up a bit more on the trainer -- at least, I think I do. Anyway, my knees often feel a bit more tender after a trainer workout even if my overall power was less and the workout was shorter than on the road.
I run the extra flywheel weight on my KK trainer. It spins up much slower when accelerating but it's easier to maintain a steady speed and trainer decelerations are also much slower.
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