[scowa18]

Just had a question about the speedo. I have never read a motorcycle manual in my life, so this is a first for me. (Maybe I am reading it wrong) I saw in the manual that the speedo displays the actual speed at 5% off. Is that common practice for all motorcycles? Ducati? Is there a specific reason for this? I realize the speed can be off due to tire size changes, etc, but what is the purpose of setting it up initially at 5% off?

 

[Albie]

Its to slow you down I reckon. It says your doing 40 your doing 38. Not such a bad thing I guess but would prefer actual

 

[Hui]

It's against the 'construction and use' laws for a manufacturer to supply a vehicle where the speedo reads less than the actual speed traveled. This makes it quite difficult for a manufacturer to get it spot on but never read less. The answer is to build in a tolerance in favour of it reading over speed.

 

[Derek]

It's also against the regulations for it to read more than 10% fast. So 5% over seems like a good compromise.

 

[El Toro]

Speedos (not the swimwear) used to always be 10% out. They've obviously reined it in.

 

[DaveInWoodland]

Heck, I want a Scrambler that WILL DO 186MPH.