I replaced the 7+ year old stock (10 AH) battery (at 9.5 lbs) with Deltran Lithium (10-14 AH equivalent) (at 1.75 lbs), for a 7.75 lb savings!
I have only had time to take a short 20 minute ride with the TRC-D on Saturday. It definitely felt like it had more torque in the 4500-6500 rpm range, but then same as stock in the 6500-9000 rpm range. It was fun to hear the motor. It is a bit on the loud side. I could tell that it would be on the loud side - when I pulled it out of its packaging and looked down and through the open pipe. My helmet wind noise drowns out the exhaust sound at 65 mph, at a steady speed on level ground.
As luck would have it, when I went on my 20 minute ride, I was about 3 blocks into my ride with my new "race track only exhaust", when I rode past the County Sheriff who was sitting in his squad car on the side of the road, waiting for scofflaws, on the main two lane highway on the edge of my little town. I just kept my V at the posted 35 mph speed limit there, clicked it up into 6th gear and held a light, steady throttle as I gingerly glided past him. He didn't follow me. Wheewww!
Last edited by trialsguy; 05-18-2015 at 03:22 PM.