GPS or Speedo?
Thread Starter
|
Road Master
Joined: Sep 2007
Posts: 779
Likes: 44
From: Fredericksburg, VA
GPS or Speedo?
GPS says 70 MPH... Speedo says 75ish MPH...
Typical? I know it is in my car but not sure about the HD...
I don't plan on having it tested to find out... I'm just curious...
I might arrange to have a co-worker put a LIDAR Beam on me and find out but just wondering other's experience...
RON
Typical? I know it is in my car but not sure about the HD...
I don't plan on having it tested to find out... I'm just curious...
I might arrange to have a co-worker put a LIDAR Beam on me and find out but just wondering other's experience...
RON
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,138
Likes: 6,163
From: SE Michigan
GPS says 70 MPH... Speedo says 75ish MPH...
Typical? I know it is in my car but not sure about the HD...
I don't plan on having it tested to find out... I'm just curious...
I might arrange to have a co-worker put a LIDAR Beam on me and find out but just wondering other's experience...
RON
Typical? I know it is in my car but not sure about the HD...
I don't plan on having it tested to find out... I'm just curious...
I might arrange to have a co-worker put a LIDAR Beam on me and find out but just wondering other's experience...
RON
Your GPS will be much more accurate.
And yes there are tuners out there that can calibrate your speedo, but dont forget, its dependent on many factors - wheel diameter, tire profile, tire inflation, etc.
So your GPS will always be a more accurate measure of your speed.
Harley Speedometers have been known to lie over the years.
A GPS is more accurate than some Police Radar gun.
The other thing to remember, Law Enforcement Officers have heard
every story, why you were braking the speed limit
Most likely you can go 5 to 7 miles per hour over the speed limit safely.
John
A GPS is more accurate than some Police Radar gun.
The other thing to remember, Law Enforcement Officers have heard
every story, why you were braking the speed limit
Most likely you can go 5 to 7 miles per hour over the speed limit safely.
John
Tourer
Joined: Sep 2011
Posts: 276
Likes: 43
From: Spokane, WA
My 2014 King:
Speedo says 60 and GPS says 57.5
I agree that cars are coming with more accurate speedos. My 2007 Vette speedo is dead accurate. My wife's car is also dead accurate.
Speedo says 60 and GPS says 57.5
I agree that cars are coming with more accurate speedos. My 2007 Vette speedo is dead accurate. My wife's car is also dead accurate.
Trending Topics
Road Warrior
Joined: Apr 2010
Posts: 1,833
Likes: 35
From: Southern Maryland
yup, they all lie. i asked if it could be corrected at the stealers and they said no. i think its a ploy by HD to rack up the mileage faster than it actually does. for every couple of hundred of miles i ride, it adds a couple of miles more than the gps. gets you out of warranty quicker....lol
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Road Master
Joined: Sep 2013
Posts: 1,091
Likes: 84
From: Southern Maine / Seacoast NH
My Speedo read about 3mph over my GPS at cruise speeds (60-70). Don't pay much attention at lower speeds, but maybe 2ish over at 40-45.
Main reason I know this is I went for a ride with a guy yesterday who was leading and planted it right at the speed limit. It was just the 2 of us, so I got the stack of cars behind me who were aggravated that we were running 3 under the limit. Happened to have my car dock app running on my phone, which has a GPS Speedo on it. Guess his 15RG is off the same as my 11 limited.
We got passed a bunch until the first fuel stop, and I asked him to pick it up a little, lol.
Main reason I know this is I went for a ride with a guy yesterday who was leading and planted it right at the speed limit. It was just the 2 of us, so I got the stack of cars behind me who were aggravated that we were running 3 under the limit. Happened to have my car dock app running on my phone, which has a GPS Speedo on it. Guess his 15RG is off the same as my 11 limited.
We got passed a bunch until the first fuel stop, and I asked him to pick it up a little, lol.
Seasoned HDF Member
Joined: May 2012
Posts: 32,934
Likes: 36,027
From: Carlsbad, CA
yup, they all lie. i asked if it could be corrected at the stealers and they said no. i think its a ploy by HD to rack up the mileage faster than it actually does. for every couple of hundred of miles i ride, it adds a couple of miles more than the gps. gets you out of warranty quicker....lol