Originally Posted by Matt Trimmings

For anyone looking for info with gearing a 13.5 / 17.5 with boost:

The new Reedy Sonic motors are amazing...this past weekend at the SIGP I ran both boosted 13.5 and 17.5 classes utilizing the new Reedy Sonic stock motors and LRP Stock Spec V2 Speedo in my B4.1. In 13.5 I was geared 72/29 and speedo profile of 3/7/7/4. With 17.5 I was geared 72/34 with an identical speedo profile. Both motors made great power and were incredibly smooth to drive and both came off the track consistently around the 135 degree mark after 6 minute qualifiers. We ran a 10 minute main event in both classes and with deciding to not change my gearing I was amazed that both motors came off the track at 135 degrees after the 10 minute main. I ended up taking the TQ and 1st in 17.5 and a 5th in 13.5 with this Reedy/LRP combo taking 3 out of the top 5 spots including the win. If you guys have any questions please feel free to post them or visit the Reedy thread.