| Ok. Now you have my attention. What are 'sprocket nuts'? I know what chain and sprockets are. 180 quid, fitted. But nuts? So far, have been unable to glean a single useful expression from 'discussion'. Bhp - know it exists but don't understand it. Don't get me wrong. I AM NOT A THICKO! Law degree etc. But maths and machinery (in spite of fact was IFA for 16 years) passes me by! | 
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