Different ratios

[Habbeli]

I looked at different ratios to my Intruder, why is it empty slots in the table for some ratios?

[kawhead]

i would guess there is not a gear/chain combo that works well,just a guess....gearing down? how long a track?

[Tory944]

  You should have a 1.86 in there...  just talked with a gentleman running 1.73 (half mile straights) LTD stock gearing.  You loose about 8% of your horsepower in overdrive...  you want to be close to a 1:1 for maximum efficiency.  I like to be just under the 1:1 at the end of the straight (depending on distance).  Try the black magic marker trick (both primary and secondary sheaves).

[Habbeli]

I am thinking about run with 19-38 then this applies to drag racing
We drive here in Sweden 150 meters in the veteranclass, so I think it would be pretty good
You're not going up more than maybe around 65 MPH 

[Tory944]

  Speaking of classes, I was entered in the 40-50 age category in my last race event.  I had to look twice at the age group I was in...  doesn't seem possible.  I feel like it was just a few years ago I graduated from high school!  In my head anyway (not so much in the physical department). 
  You know, 65 mph is a safe speed - around here you'd only end up with a speeding ticket and a hefty fine for exceeding the  ("speed limit")!!  Good luck!

[Habbeli]

Here's how it looks when we play with our veterans scooters at 150 meters

http://www.youtube.com/watch?v=3gg_k7_1v-g&feature=youtu.be