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+--- Thread: Lower gearing? Anyone done it? (/showthread.php?tid=9368)
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RE: Lower gearing? Anyone done it? - Inhouse Bob - 04-19-2016
(04-15-2016, 02:37 AM)CIP57_imp Wrote: Magnus your new and may have not seen some of these vids.Interesting videos. The first reaches 100 at 10.xx while the second gets there in 8.xx.I suppose the extra shifts add a bit of time. Cool to see that they are pulling strong right through the red line.
Here is a CB with a 17 tooth sprocket::
https://www.youtube.com/watch?v=LG4eqsjy8zE&feature=youtu.be
Notice shift points @ redline 42/67/90
1 tooth up front and 1 down rear 19/38's
Shift points: 60/98/124
http://vid1034.photobucket.com/albums/a423/cipolla57/new%20gears%20bri_zpslpqleggr.mp4
Going down 1 tooth will only give you more torque until you shift to second (42mph) (19-38's pulling hard from 42 to 60) from there the combination of internal + final ratio while be higher (less torque) due to the bike being in 2nd rather than first. From 67mph when lower gearing hits third the 19-38's will walk away until wind pressure max's out power @ 142mph.
Hope this is helpful.