
I did a sprocket swap on the rear of the TW to see if I can find the magic ratio. New engine has more torque so I went taller. I pulled the 55T that makes it a climbing machine for a stock 50T that I had on the shelf.


Then I decided it was time to put some break-in miles on it. Rode up Sunny Slope to top off the tank with fresh ethanol-free, then over to Homedale, and took the long way home.

The more I rode it, the better it ran. I'm thinking the low speed surge I had might have mostly just been stale gas. It's no fire-breather, but there's a noticeable increase in power. The way it's geared right now I have a 10.29 compound low. Previously it was an 11.09. The added torque seems to even the score, and it has no problem leaving stop signs in 2nd. Where it really improved was the cruise speed. With the previous 14/55 combination it was running pretty hard at 45mph and tapped at 50. The way it's balanced now, with 15/50s and the extra 6th gear, the comfy cruise speed is 52-54mph. At 60 it isn't working too hard and I'm at about 80-90% throttle. Top speed on level ground is 63mph. Granted, I throw out a pretty big sail on such a little bike sitting upright.
34 mile round trip and it got me home, like it always does. No smoke, no leaks, no noises.
