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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Laser Chain Alignment
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<blockquote data-quote="Nigel Spaxman" data-source="post: 135312" data-attributes="member: 2907"><p>I built my Norton with aluminum wheels from a Yamaha RD400. I had to establish chain alignment wheel alignment and disk alignment, by making spacers. The bike was only partly assembled so I was able to clamp a piece of flat bar onto the gearbox sprocket, to take measurements. It turned out that when the sprockets were perfectly lined up, the rear wheel was only off center by .030". When I made up the axle spacers I split the difference. I made it so the sprocket was out by .015" and so was the centerline of the tire. The bike handles well and there are no problems with the chain. I think that + or-.020" is close enough for either of those dimensions It was interesting that the original design of the RD400 and the Norton were so close in terms of the offset of the chain from the centerline of the bike. I guess they both started with similar sized tires. The wheel bearings had the same ID as well.</p></blockquote><p></p>
[QUOTE="Nigel Spaxman, post: 135312, member: 2907"] I built my Norton with aluminum wheels from a Yamaha RD400. I had to establish chain alignment wheel alignment and disk alignment, by making spacers. The bike was only partly assembled so I was able to clamp a piece of flat bar onto the gearbox sprocket, to take measurements. It turned out that when the sprockets were perfectly lined up, the rear wheel was only off center by .030". When I made up the axle spacers I split the difference. I made it so the sprocket was out by .015" and so was the centerline of the tire. The bike handles well and there are no problems with the chain. I think that + or-.020" is close enough for either of those dimensions It was interesting that the original design of the RD400 and the Norton were so close in terms of the offset of the chain from the centerline of the bike. I guess they both started with similar sized tires. The wheel bearings had the same ID as well. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Laser Chain Alignment
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