How much did a liter bike shave off your lap times?

Since I can't hit the track or the ice yet, I've been spending too much time looking at new bikes. via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/e9xt17/how_much_did_a_liter_bike_shave_off_your_lap_times/?utm_source=ifttt