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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Speedo calibration?
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<blockquote data-quote="Ducdude" data-source="post: 40987" data-attributes="member: 2077"><p>Thanks Alyn,</p><p></p><p>I miss read my notes:</p><p></p><p>an indicated 30mph actual road speed is 28-29mph 3.3 - 6.6% off</p><p>at indicated 50mph actual road speed is 47-48mph (not 42-43mph) 4 - 6% off</p><p>at indicated 80mph actual road speed is 76-75mph 5 - 6.25% off</p><p></p><p>So I am 5-6% off most of the time ..The variation is pretty linear and only seems dependant on where I am catching the Smiths at its reading and the resolution of the measurement at the low end. Still I am not changing the FT wheel size to adjust, thinking that a tweak on the speedo will do the job better for me...</p><p></p><p>Much Thanks for the help. Now all I need to do is figure out how to change the weights on this thing...<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Thanks,</p><p>Eric</p></blockquote><p></p>
[QUOTE="Ducdude, post: 40987, member: 2077"] Thanks Alyn, I miss read my notes: an indicated 30mph actual road speed is 28-29mph 3.3 - 6.6% off at indicated 50mph actual road speed is 47-48mph (not 42-43mph) 4 - 6% off at indicated 80mph actual road speed is 76-75mph 5 - 6.25% off So I am 5-6% off most of the time ..The variation is pretty linear and only seems dependant on where I am catching the Smiths at its reading and the resolution of the measurement at the low end. Still I am not changing the FT wheel size to adjust, thinking that a tweak on the speedo will do the job better for me... Much Thanks for the help. Now all I need to do is figure out how to change the weights on this thing...:-) Thanks, Eric [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Speedo calibration?
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