Speedo speed versus GPS speed


Information and questions on GL1500 Goldwings (1988-2000)
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martinarial
Posts: 22
Joined: Wed Jul 14, 2010 5:11 am
Location: Canada
Motorcycle: 1984 Goldwing Interstate
1988 Goldwing
2000 Valkyrie Interstate
2001 ST1100

Speedo speed versus GPS speed

Postby martinarial » Thu Jul 15, 2010 2:10 pm



Hi Goldwingers! Have any of you ever noticed a discrepency between that speed indicated on your speedometer and one indicated on a GPS? Seems on my Goldwing (88), with the correct front tire size) the speedometer always indicated at least 8km/h (5mph) more than my GPS says...I'm wondering which one is true, I tend to believe the GPS because it is a satellite reading and it also matches the speed perfectly in my car. For reference, at speedo-indicated 100km/h (62mph) my engine revs 2750, at 120km/h (75mph) it revs 3250, 140km/h (85mph) it revs 3750 and 160kmh (100mph) it revs 3750, 180km/h (111mph) it revs 4250...past that I get a little nervous lolll BTW, the great flat 6 seems to be able to reach the 5500rpm redline even in 5th gear!!!



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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Speedo speed versus GPS speed

Postby WingAdmin » Thu Jul 15, 2010 2:40 pm

The speed shown on your GPS, when traveling on a level, straight road, will always be the most accurate speed.

User avatar
martinarial
Posts: 22
Joined: Wed Jul 14, 2010 5:11 am
Location: Canada
Motorcycle: 1984 Goldwing Interstate
1988 Goldwing
2000 Valkyrie Interstate
2001 ST1100

Re: Speedo speed versus GPS speed

Postby martinarial » Thu Jul 15, 2010 8:19 pm

Your 82 Aspencade looks real good WingAdmin! A friend of mine had his 83 Interstate last up to 292,000 miles! Could still go, but he let it go...sad :o( My 84 Interstate is up to 250,000 miles so far, still running strong, only had the cams rechromed once...but now the rockers are wearing out, and Honda doesn't manufacture them anymore...this is why I stored it, and bought myself a nice creampuff...an 88 Goldwing...it'll probably outlast my 84...ahhhh so many miles, so little time! :o)


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