I'm around 270 geared. Heavier than you it sounds like, but nonetheless, you will definitely want to change the spring. I put the fatboy spring on and it was nite and day difference.
whitedust1
TY 4 Stroke God
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- 2012 Apex XTX
Kinda guessed 3/4 throttle all day long with 16 mpg on RX1. Probably get about the same on Apex GTLTX. Let us know. I can only get 14.5 mpg on 07 Attack but push hard in UP. In WI on Twistys got as much as 18mpg during break in keeping revs down.