Differences in 450 motors.

[J51S]

I'm about to purchase a motor for my build. Its between a 05 trx450r motor, and a 03 crf450. I noticed that the trx one uses a oil cooler and the other doesnt. Is that a big benefit?

[njquadracer11]

not really, but alot of ppl prefer the 04-05 motors for there strong gearbox