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Discussion Starter · #1 ·
Hey guys, I'm looking to get a Vortex 42 Sprocket and 525 chain. I just wanted to confirm that going from stock gearing to 18/42 ratio on the H2 will not affect the speed reading as it's take on from the sensor on the rear tire. I've seen conflicting threads on this so not sure if I will need a speed healer. Thanks for the help.

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It wont. The hall effect sensor would be correct regardless of the sprocket attached to it, its got its own ring attached to the disc itself on the other side of the swingarm.

NOLA
 

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Discussion Starter · #3 ·
Ok great thanks, I curious on how it feels with the new sprocket. I've heard positive things about doing it and not too much difference except about 10 Mph faster.

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I've gone all the way from the stock 18/44 through 19/44, 19/43 to 19/42 and it's now on 19/41 and to be honest it doesn't feel over-geared. It's much more rideable in fact and still picks the front wheel up on the throttle in the first four gears, 4th at 13,000rpm is just over 170 and it's geared for 220, still using the original 13,000rpm limit.
 

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@BobC

You are like the board T&E person for gears. Damm.

NOLA
What I found early on with this bike is that the H2 is quite un-aerodynamic. The bike itself may well have a low CD in a wind tunnel but it hits a brick wall at much above 190 with a normal sized rider aboard and so the conditions on the day have a big effect on top speed. It's because of this I've had to get the gearing spot-on at race meetings and go prepared to change a sprocket if necessary.

In a nutshell: at any given meeting you have to use experience to calculate what top speed is achievable in the prevailing conditions with this CD and this much engine power - then gear it accordingly.
 

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Awesome info Bob! I have been starving myself and destroying the elliptical for months to get down to as small as possible. I am 5' 8" and now weigh about 180 pounds in the morning at 8am. Once I got below about 188 I noticed my tuck began to have a lot less buffeting around the trailing edge of my leathers, now when I slide back and try touch helmet chin bar deep in that socket and maintain as much field of view as I can, things are smoother and even a little more quiet. Maybe the sound drop is just in my head, but she shoots to the limit in 6th very quick. Still bone stock so that is only 186mph, but wow, the H just rips up to that with stock gearing. I think once I install the full system and derestrict/tune her I am going to drop the rear sprocket 1 tooth, maybe 2. Gonna be 90% street-10% track use, so I am wanting to preserve that maniacal rpm rush. :)
 

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@Niobium23

Have you thought about getting a bigger dog, maybe more aggressive to chase you around a bit. Get ya down to like 165#. Maybe bite you till you run faster and get your "tuck" a little bit better.

Your current dog can do the porn shoot thing while Daddy looses some of his tactical girth with the new bite dog ?

NOLA.

Just a thought.
 

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All good ideas Nola! :)
I am pretty happy at present weight. As long as I now avoid too many fried foods and such, I can maintain fairly easy. I like having the more energy that lighter affords. I was heavier for awhile. Working out and such, but the extra calories and workouts were just time eaters. I like the lean and mean. Coffee and a supercharger is a great breakfast!
 
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