I need help... First a quick profile: 57 yrs old, 5-9, 170lbs, good shape (ski, mtn bike, gym). Experience: raced moto in NJ/ PA from 14 to 19 years old, A few trophies, no firsts! Last bike, 78' Yama YZ250E. Recently rode kx250f 1/2 dozen times on single track and fire roads in 17'. Friends bike.
My goal is to buy a bike for racing MX and some JDays in the MA/ NH area. Some great loamy and sandy tracks, including Southwick. Plus trail riding in Plymouth with my new friends.
Question is what should I buy? Budget is approx $6k. Kx250 was OK, hated having to kick start it since it was carbureted. Do I need a 450 to be competitive? At 170 lbs I worry it's more power then needed. Love stats of the KTM 350s, with elec start, but rare to find one in my budget. Love idea of Yamaha reliability, but are they awkward and hard to turn? I see bargains on KX 450s... I really do need some insights, so please chime in ...