At what RPM/Speed do you start to really feel the 103B buzz
#41
10-22-2014, 09:03 PM
Cruiser
Yeah, it's largely related to the strength of the firing pulses. Higher speeds require more power, so each firing pulse needs to be stronger.
Lower the rpms by using a higher gear at cruising speed, and each power pulse needs to be stronger, because there are fewer of them to do the work. Up around 90 mph, the engine is working hard enough that the vibration is always there. The rubber mount motors are a little better vibration wise for cruising at high speeds like that. But they vibrate quite a bit below 2500 rpm, even at low speeds and low throttle openings. Actually, that rubbermount vibration under 2500 rpm bothers me (and passengers) more than the high-load vibration on the softail.
Lower the rpms by using a higher gear at cruising speed, and each power pulse needs to be stronger, because there are fewer of them to do the work. Up around 90 mph, the engine is working hard enough that the vibration is always there. The rubber mount motors are a little better vibration wise for cruising at high speeds like that. But they vibrate quite a bit below 2500 rpm, even at low speeds and low throttle openings. Actually, that rubbermount vibration under 2500 rpm bothers me (and passengers) more than the high-load vibration on the softail.
I just got a Slim and it is pure joy riding around town.
I have only had it a week but when I rode it home after about150 miles my knees kept opening which was annoying.
Have not made the official post that I got a new Slim yet. Putting the big boss exhaust and air intake on in a few days and then I will post pics. Rode 180 miles each way in a rain storm day I bought it. Charcoal Satin.
Last edited by tripleb1911; 10-22-2014 at 09:09 PM.
#43
10-22-2014, 09:22 PM
Thread
Thread Starter
Forum
Replies
Last Post
Thatzmister2u
General Harley Davidson Chat
33
05-05-2010 07:00 AM