Crazy impulsive move today..

Forum Sponsor
Torren said:
What is your year tire size? is it the stock 180/70 or has the PO changed it to either the 200/70 or the 170/80? Either of these will make the speedo read pretty much accurately. Or if they changed out the stock drive pulley(s) with the aftermarket overdrive pulley(s) that also corrects the speedo.

Or the Harley could also be off as are a lot of motorcycles. The best way to find out is with a GPS. First time i had my 9 or the highway I was doing what i thought was 120, but was not passing many people, Not even the school buses.
Click to expand...

From what I know the bike is stock but I'll check these things out. For almost $30,000 out the door you'd hope the Harley has an accurate speedo! I will try with GPS when I can as well...
 
Varrus999 said:
From what I know the bike is stock but I'll check these things out. For almost $30,000 out the door you'd hope the Harley has an accurate speedo! I will try with GPS when I can as well...
Click to expand...

Most vehicles (not just bikes) overestimate the speed they are actually doing by 8-10%. I have found several vehicles I have driven to be accurate to about 80kph but they start to read low after that. Heck that GPS speed is out by 1kph +/- if you read the specs. I would think with vehicle mfg's that it is a liability issue, as in they don't want customers getting tickets and arguing that the product is faulty.
 
tat2 said:
Most vehicles (not just bikes) overestimate the speed they are actually doing by 8-10%. I have found several vehicles I have driven to be accurate to about 80kph but they start to read low after that. Heck that GPS speed is out by 1kph +/- if you read the specs. I would think with vehicle mfg's that it is a liability issue, as in they don't want customers getting tickets and arguing that the product is faulty.
Click to expand...

I just tested it with my phone GPS in my car...it seemed off a bit, but then it is a phone GPS. I have come to the conclusion that nobody really knows how fast they are going. The rotation of the earth must be broken and they're not telling us!
 
You must log in or register to reply here.
Back
Top Bottom