Originally Posted by NJ1
B7 has far better sole durability, maybe 30%+ more but that's just an approximation.
Thanks! I just sent an email to babolat and they said theres gonna be a propulse 4. They said theres going to be more outsole durability. And i also read the TW propulse 3 review and the over all was really good all the scores were 4.0+ but it was just the outsole that brought it down.