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Can I use my old wheel for my trainer [duplicate]
My bike has a 8 speed Shimano cassette and I've been using this wheel on my trainer over the winter with a training specific tire on it (so as not to wear out my street tires). Since spring is coming ...
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What does double and triple gear shifters mean?
I am looking at these components and am wondering what does double and triple gear shifting mean?
Shimano R221 Double Gear Shifters 8 Speed
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