Speedometer gear for speed correction?
#1
Speedometer gear for speed correction?
I recently picked up a 1988 CBR600F and have been working on fixing it up and commuting on it. One thing that is driving me crazy is how optimistic the speedometer is. To do a true 60 mph (GPS) I have to ride at an indicated 70. To run the freeway speed limit of 75 I need to be showing 88 mph.
Anyway, are there different speedometer gears available to get things a little closer? One of my other bikes (DR650) has this option thru aftermarket for guys that have gone supermoto (big tire height change). I have searched but come up empty for this 32 year old toy.
Thanks for any help.
Anyway, are there different speedometer gears available to get things a little closer? One of my other bikes (DR650) has this option thru aftermarket for guys that have gone supermoto (big tire height change). I have searched but come up empty for this 32 year old toy.
Thanks for any help.
Last edited by adam728; 09-25-2020 at 03:42 AM. Reason: My spelling is bad, and gets worse at 4:30 am when I can't sleep.
#2
#3
An old 110/70/17 Metzler is on it now, which doesn't help things. I need to check odometer/trip still.
Seems to be about 16% off all the way through, from 30 mph right up to lose-your-license speeds. In other words, doesn't seem like the needle rotated on the pin or anything (which would be offset by a straight speed, not a multiplier).
Seems to be about 16% off all the way through, from 30 mph right up to lose-your-license speeds. In other words, doesn't seem like the needle rotated on the pin or anything (which would be offset by a straight speed, not a multiplier).
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