Top speed frustration

[Jt105]

Your GS500E had an awfully optimistic speedometer if it displayed 120, let alone 135.

Maybe, but I ran with a number of other bikes all showing similar speeds on their speedo. Passing cars on the freeway as fast as they were passing road signs. Double their speed at least. Young, dumb and immortal.

JT

[MattKas]

The other day my son took out my 2016 NC700X DCT ABS for a ride; just to compare with his BMW C650GT. After the ride he said my bike cuts out around 90 miles/hr whereas his bike goes up to 120 miles/hr. He also said that the police officer told him that I needed to change the Texas Plate to Arizona plate. :-) lol (I purchased the bike from Craig's list in Dallas and got it shipped to Phoenix)

[dduelin]

The other day my son took out my 2016 NC700X DCT ABS for a ride; just to compare with his BMW C650GT. After the ride he said my bike cuts out around 90 miles/hr whereas his bike goes up to 120 miles/hr. He also said that the police officer told him that I needed to change the Texas Plate to Arizona plate. :-) lol (I purchased the bike from Craig's list in Dallas and got it shipped to Phoenix)

I would imagine the Honda's speedometer is a lot more accurate than the BMWs based on experience and contemporary press reviews.

[MattKas]

I agree maybe he was actually speeding around 110-115 miles per hour on his BMW scooter

[davidc83]

When I had my BMW G650GS, the speedo was reading higher than the GPS (about 5 mph higher above 70mph). My Honda NC700x is usually right on or within 1 mph compared to the gps at any speeds... Most bikes read speed from front wheel while the Honda NC700 has the device inside the transmission (similiar to cars).

[Junkie]

Most bikes are set up with a rather optimistic speedo from the factory.

On Suzuki SVs, the speedo is off by approximately 9%. However, the odo is only off by about 1.2%. Why? I believe there are federal standards regarding odometer accuracy, but not speedometer. Having a speedo that reads high means people think the bike is faster, and they're less likely to get tickets. The SV thing is true of both the 650 (which reads off the front) and the 1000 (which reads off the rear). It's a digital gauge, so it isn't that there's a spring that's worn or anything: it's by design. I had an electronic device installed in my speedo that lets me adjust the speedo reading without throwing off the odo reading.

[670cc]

I don’t think front wheel vs rear wheel speed measurement points have anything to do with speedometer accuracy. We discussed NC700X speedometer accuracy in the past in several threads. (Here is one of several: Speedometer Accuracy ). We observed that US spec NCs had very accurate speedometers whereas European versions were in error by 5% or more. This variation among the same motorcycle model in different markets suggests that the inaccuracy, when present, is intentionally designed in by Honda.

[showkey]

The speedo specs the manufacturer must meet ( from the factory in stockad built) is always over report speed and not under reporting. So the built in error or variance if there is one is almost always over report.
There are published standards +/- 5 specifications most manufacturers go with +1 -5 as the real standard to hit in mass production.

Federal Motor Vehicle Safety Standards; FMVSS 101-Technical Correction-Speedometer Display

[Junkie]

I'm having trouble finding speedometer accuracy requirements there.

Given the error of approximately 9% on an SV, at 65mph it wouldn't fall within a +/-5 range. I'm surprised that Suzuki makes a bike that falls outside of spec.

[Fred Harper]

Buy a 'busa. Cheap way to go faster than your Angel can fly!