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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Primary Drive Q's?
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<blockquote data-quote="davidd" data-source="post: 108019" data-attributes="member: 1177"><p>Jez,</p><p></p><p>You have confused me with so many choices!</p><p></p><p>Greg rightly points out that the single primary ratio is higher than the twin and with the 36T Newby engine pulley and the 68T clutch the primary ratio is very close at 1.89. Like Tim, I prefer the quality and reliability of the Newby. It is difficult for the other options to match the overall performance of the Newby. The extra cost should pale when compared to the performance and reliability of a Newby.</p><p></p><p>These belts have no give in them. They are the same as timing belts and you cannot have give in a timing belt. I do think that racing may prove to be somewhat easier on the primary than stop and go driving. But, on the other side is the excellent clutch. I believe it is a better shock absorber and it is able to be slipped often without any damage. </p><p></p><p>Finally, the Newby fits inside the Comet primary with some mods to the inside of the primary. That saves a little cash and protects the whole primary.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 108019, member: 1177"] Jez, You have confused me with so many choices! Greg rightly points out that the single primary ratio is higher than the twin and with the 36T Newby engine pulley and the 68T clutch the primary ratio is very close at 1.89. Like Tim, I prefer the quality and reliability of the Newby. It is difficult for the other options to match the overall performance of the Newby. The extra cost should pale when compared to the performance and reliability of a Newby. These belts have no give in them. They are the same as timing belts and you cannot have give in a timing belt. I do think that racing may prove to be somewhat easier on the primary than stop and go driving. But, on the other side is the excellent clutch. I believe it is a better shock absorber and it is able to be slipped often without any damage. Finally, the Newby fits inside the Comet primary with some mods to the inside of the primary. That saves a little cash and protects the whole primary. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Primary Drive Q's?
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