My buddy has a 186 with a Johnson 175 fast strike motor. He is looking for a new prop and I told him I would check on here for him. Can anybody tell me what they are running on their 186's. He just got the boat last year and has not had it out that many times and is new to the bass boat thing. I do not have any measurements, RPMs, speeds, etc. yet. We are going out next week and I will try to get more info.