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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearing on a Twin
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<blockquote data-quote="Robert Watson" data-source="post: 87760" data-attributes="member: 38"><p>I run 22/48 on the Woolly (rapide) I tried 22/46 but with 2 up and luggage was not best pleased starting out. It has a std ratio Surtees 5 speed. I geared the A in the same general area and even though not much two up riding It works well. If I ran mostly solo I think I would run 22/47 on a post war twin. Keith Sides always rode solo with the 5 speed and 22/46 and really liked it. He also had the thing running on BIG DelOrtos and managed to get incredible mileage. I think mileage is a matter of how close to the wind you want to run with rich/lean and there is really one way to confirm all that these days and that is with O2 sensors or a tailpipe sniffer... Reading plugs on modern fuel is almost impossible. I just keep leaning out until I squeak a piston and then go back 1/2 a setting <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> NOT.</p><p></p><p>I like the 5 speed because you know what kind of terrain we travel here, The climb out of Kelowna going South on the Coquihalla Hwy is 26 km to the summit. A five speed has a gear for every hill!</p><p></p><p>PS The last Surtees 5 speed I got had to come a circuitous route as Power Sports will not sell to "America", not even to Canada either, I didn't ask about Mexico, but suspect they also got included in that generality. That is not the first UK supplier who has stopped shipping here, Lindsley for magneto things comes to mind. Great to have friends in the Club.</p><p></p><p>Also rogerphilip, you should be able to just copy and paste your table into your post, although it might need a bit of formatting.</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 87760, member: 38"] I run 22/48 on the Woolly (rapide) I tried 22/46 but with 2 up and luggage was not best pleased starting out. It has a std ratio Surtees 5 speed. I geared the A in the same general area and even though not much two up riding It works well. If I ran mostly solo I think I would run 22/47 on a post war twin. Keith Sides always rode solo with the 5 speed and 22/46 and really liked it. He also had the thing running on BIG DelOrtos and managed to get incredible mileage. I think mileage is a matter of how close to the wind you want to run with rich/lean and there is really one way to confirm all that these days and that is with O2 sensors or a tailpipe sniffer... Reading plugs on modern fuel is almost impossible. I just keep leaning out until I squeak a piston and then go back 1/2 a setting :-) NOT. I like the 5 speed because you know what kind of terrain we travel here, The climb out of Kelowna going South on the Coquihalla Hwy is 26 km to the summit. A five speed has a gear for every hill! PS The last Surtees 5 speed I got had to come a circuitous route as Power Sports will not sell to "America", not even to Canada either, I didn't ask about Mexico, but suspect they also got included in that generality. That is not the first UK supplier who has stopped shipping here, Lindsley for magneto things comes to mind. Great to have friends in the Club. Also rogerphilip, you should be able to just copy and paste your table into your post, although it might need a bit of formatting. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearing on a Twin
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