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    Can anyone help? Attachment 694244
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    What grade question is this? Is it a GCSE or A-Level question?
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    (Original post by AlphaZenix)
    What grade question is this? Is it a GCSE or A-Level question?
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    I don't know but I'm guessing it's to do with a greater amount of resistance when peddling so it's easier to pedal, or it could be since the radius of the front sprocket is greater than of the smaller one it allows greater movement when peddling which improves efficiency...
 
 
 
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Updated: October 5, 2017

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