Hi Folks. I am new to structured training but have been mountain biking for 20 years. I am training for the Whiskey 50. I am in SS Base just starting part 2 next week. My trainer is a Kickr with my Trek Emonda. I have a PM on my gravel bike but not the bike I will be racing for the Whiskey. I have already started to see the benefit of a PM on the gravel bike for pacing. The XC race bike is a 23lb 11 speed full suspension. There is a TON of climbing on this course. I have the money for 1 upgrade. Should I get a PM for my XC bike or should I upgrade the gearing to a 12 speed (eagle). I am 47yrs old. 5ft7in 186lbs with an FTP of 260 at the start of the SS Base. Yes, I know, lose weight. That is easier said than done with my work schedule type of job / motivation. I am not looking to win this race by any stretch. I just want to be able to enjoy it as much as possible.
PM or Gears???