[socal]

I am having difficulty telling when i am in 6th gear on my 2010 Z. I have been riding an SV650 and could always tell if i was in 6th gear because at 80 mph my tach was at 6000 rpm. I am not used to an inline 4 engine and I see that the rev difference between gears is pretty small, often times in the neighborhood of only 500 rpms. Since the bike pulls so well at all speeds in all gears, if I had to shift gears on the hwy because of changing conditions, I often dont know if i am in the tallest gear and end up making an unnecessary attempt to upshift eventhough I am already at the highest gear. This is annoying. Does anyone look at the tach and match speed to determine if they are in the tallest gear? I want to stop trying to upshift when I am already in the tallest gear.

 

[underdog]

I've seen posts all over the place about the same complaint. I have an '07 with +3 in the rear and so my rpms are up a little higher like 7.3%. I just installed a SpeedoHealer last night and haven't got a chance to ride it yet. Before the change I was seeing 75 mph at 5,000 rpm and 90 mph at 6,000 rpm. And yes I also grab 7th gear at times too. I set the healer for OEM correction (-5.5% + the 7.3 gearing change) for a total of 11.8%. It seems a little high to me but a quick ride with somebody following me should tell the story and I can adjust from there. I'll post the corrections as soon as I figure it out.
They (HealTech Electronics Ltd. - Makers of the SpeedoHealer, GIpro, X-TRE, FI Tuner Pro, OBD Tool) also make a GIPRO DS-series gear indicator you might be interested in. Or this dash mod (Mod of the Year Design • Gear Indicators & LED Color Changes for ALL Bikes) adds a gear indicator installed right in the dash cluster and you can change color of lighting etc. and they look real cool too! The feedback from MotyDesign has been very positive on all counts, quality, quick shipping and fast turn around of your dash cluster.
Just a couple options to think about.

 

[underdog]

Update after speedohealer calibration:

5,000 rpm = 67 mph
6,000 rpm = 80 mph
7,000 rpm = 92 mph

Gearing Commander List it close at: Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator

5,000 = 67.7
6,000 = 81.2
7,000 = 94.7

I ran it through a radar setup at 40, 45, 50 and it looked like it was within 1 mph or so. It is good enough for me until I get it on the dyno and figure out the exact mph.

Sorry, I didn't mean to steal your thread.

 

[BennyV]

Would I be correct in saying the speed is determined off the front wheel and not the rear meaning you don't need to correct gearing changes?

I know this was the case on my previous bikes. I just assumed it would be on the Zed also.

 

[JSharp]

The speedo isn't driven by either wheel. It's driven by the speed sensor that senses the speed of the drive sprocket. Change the gearing or rear tire size and your speedo will readings will change versus the actual speed.

 

[BennyV]

Good to know, thanks.

 

[kawtoy_77]

6th gear @ 60mph for me is 4,000 RPM's