2007 Hyosung GT250R speedo

[RantyDave]

BusaJim was showing over 300k on speedo, but clocked at 276K.

Oh dear, much wailing and gnashing of teeth! I believe a mere R1 went faster than that too.

Personally I think I'm "good" for a hair over 200. But only a hair. We'll see....

Dave

[Cajun]

I've seen those 'Speedo-healers' around and am curious if anyone has tried them or know if they work. Apparently digital speedos are reknowned for being out.

I have a speedo healer on my bike, mostly due to fact suzukis are out on average about 7%(read high) then changed my gearing which made it out by something like 16% so speedohealer at 100kms .5km out compared to gps,

Biggest issue you will have is finding a kit so you can plug it in to a hyosung

[unrealone]

I have a speedo healer on my bike, mostly due to fact suzukis are out on average about 7%(read high) then changed my gearing which made it out by something like 16% so speedohealer at 100kms .5km out compared to gps,

Biggest issue you will have is finding a kit so you can plug it in to a hyosung

When I had my Suzuki FXR150 I had the same problem with its Digital Tach etc. Was advised to get a speedo-healer. I'll have a hunt around for something for the hyosung and let you know what I scrounge up.

[Pancakes]

my GT250 analogue speedo is the opposite i think as i dont seem to hold up traffic.................

.....................
From the trend we are seeing it would seem as though many of the GT250R top speed claims could in fact be along way out

I've posted more than a few times about how GT-R riders are claiming up to and over 170 top speeds while mine and all the anologue speedo GT's are 150 downhill with the same motor/gearbox finaldrive and at the same redline. I know the fairing must help a bit but that doesn't allow for 20k's at roughly 150. My bike isn't spinning it up at those speeds cos of wind resistance thats for sure!

[gw555]

be interested in hearing from anyone else with a non digital dash if they think the speed is out on theirs?

Over the weekend I'll do some speed tests against the car.

My speedo appears to be correct up to around 120k. I have ridden with two GTRs and they are both out by around 12k compared to my speed at 100k/h

I have checked my speedo against a car at 50 and 100 passing those speed signs and my speedo was reading <5k difference in both cases

At over 120k I think my speedo becomes a bit optimistic though as I dont believe the cagers are travelling at 130 and above in morning traffic on the Hutt Motorway

[Aa7]

i tested the speedo on my GT250 against an older model Garmin GPS today and found the following; at 50kmh on the speedo i am doing 54.7km but at 100km on the speedo i am doing 96.7km i wont post the others but it gets worse the higher it goes and is around 15kph out or more at speeds above that. This is the analogue dash and when the flatmate gets his GT250R (hopefully by Saturday if he chooses which shop he prefers to buy it from) i'll do the same on his bike and see how different the readings are.

[unrealone]

I've posted more than a few times about how GT-R riders are claiming up to and over 170 top speeds while mine and all the anologue speedo GT's are 150 downhill with the same motor/gearbox finaldrive and at the same redline. I know the fairing must help a bit but that doesn't allow for 20k's at roughly 150. My bike isn't spinning it up at those speeds cos of wind resistance thats for sure!

Might not have been stock?

[bull]

mine reads high by 6/8km/h at both 100km/h and 50km/h.

[Fub@r]

Going past a speed trailer at 50kph it said I was doing 45kph

Riding with a mate of mine on a GSXR 750 with analoge dash riding at approx 120kph mine showed 130kph. At higher speeds using the GSXR I maintained a 10kph differential

[rphenix]

I've posted more than a few times about how GT-R riders are claiming up to and over 170 top speeds while mine and all the anologue speedo GT's are 150 downhill with the same motor/gearbox finaldrive and at the same redline. I know the fairing must help a bit but that doesn't allow for 20k's at roughly 150. My bike isn't spinning it up at those speeds cos of wind resistance thats for sure!

I remember reading somewhere someone thought the GT is faster than the GTR so who knows I ride the GV so I dont care lol I'm sure mines the slowest of the three models but I agree you would think the GTR would be a little bit faster due to aerodynamics.

[Weaver]

I imagine that the GTR is faster than the Comet. But not as people had thought. Admittedly the fairing adds wieght to the bike, from memory its about 16kgs, but it'll far more aerodynamic than the comet which dosen't have anything to deflect the wind

[Pancakes]

From trying different exhasts the Hyo' 250 (which is the same unit in all the models including the sprocket and ring, if you want different from std you have to have one made or find out who's had some made) I can say the top speed is limited in a big way by the pipe reaching maximum flow. Put a straight thru pipe on and it keeps revving out. As they loose power in lower gears too just above redline it's reasonably safe to say that its this restriction the bikes hit in top gear too. My GT had way more top end potential with the straight pipe on but I didn't want to over-rev it. This is what has always made me think the speedo's on one of the models are out, cos the drive train is identical on all three and at the same revs on the GT and GT-R the speedo's read different. I get mine back next week (it's been next week for a few weeks now, that slow boat from Korea must be slower than the slow boat from China!) and would be keen as to do a side by side comparo (closed road blah blah) with a GV and GT-R. Digital cams filming on the tanks so we can post the results?