speed sensor accuracy

Information and questions on GL1200 Goldwings (1984-1987)
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ride dont hide
Posts: 86
Joined: Mon Mar 13, 2017 8:11 pm
Location: Keithsburg Il.
Motorcycle: 83 GL 1100 80 CB 750K 68 BSA Royal Star 69 BSA Firebird 69 Triumph Chopper 60 BMW R26 and more.

speed sensor accuracy

Post by ride dont hide »

New to me 85 A. Seems like the speed sensor is not accurate, so many people passing me unless I get it to 65 mph in a 55. Really don't want to find out the hard way (ticket) so can some one check rpm at 55 and 65? Now you have another excuse to tell the Misses that ya need to go for a ride..... 8-)

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Posts: 121
Joined: Mon Apr 10, 2017 8:03 pm
Location: NE Minnesota
Motorcycle: 1985 GL1200A Aspencade
1975 CB550F Super Sport

Re: speed sensor accuracy

Post by LeMaitre »


On my GL1200A when the bike says 62-63 actual speed is 60. That is according to my GPS. Now to keep up with the Canadian drivers I usually have to travel 65 indicated. (FYI I am in NE MN).

Another consideration is if the speed gears and sensors are starting to wear out. The gear on the front wheel can start slipping around the blade in the mechanical to electrical converter.

1985 GL1200A, MN SS1K, Iowa Ironbutt sign SS1K, MN-1000-2021, Krazzy Key West SS1K
1975 CB550F, Lake Superior SS1K, 45-90 SS1K, All in Yooper SS1K, SS2K
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Posts: 2
Joined: Sun Sep 01, 2019 1:21 pm
Location: Lincoln Nebraska
Motorcycle: 1985 Honda gold wing aspencade GL1200A

Re: speed sensor accuracy

Post by Mikedw »

I am having the same problem with my 1200, aspencade when doing 75 I’m actually doing 67. I have to go 83 in order to be doing 75
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