I’ve just installed a 4iiii version. Practically the same thing. It was pretty easy to install. I didn’t have the crank adapter but managed to get it off anyway.
I’ve just been out for the first ride with it. Weather was rubbish so wouldn’t have gone if I wasn’t so excited to test out my new toy. I’ve no idea on numbers yet but told myself to average above 170w for the 50km which I managed. At least I know what to aim for next time.
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