low end motors vs high end motors

well maybe i should run mine and then temp it. i just now noticed i never temped it. i just let it cool down when my friends with nitro let there cars cool down in between tanks.

[aqwut]

Lifespan.. My bearings on the 7XL went a bit after 2 years... but all in all.. it's a great motor... I really like the 12XL on 6-8 Cells... seems to work for me.. And you could get quality boca bearings for them... A fan/heatsink always helps.. I've had my 7XL for over 4 years now.. still kickin'...