What's the best rear motor mount to pair with the Predator front mount
HDF Community Team
Joined: Apr 2018
Posts: 2,574
Likes: 1,067
From: Ohio
I finally got around to installing my Big Bear rear mount. Its not the easiest thing in the world to do but not impossible. I ended up super gluing the supplied nylock nuts inside their pockets to keep them from constantly falling out during install. Theres no instructions and all the videos available are for early versions of this mount and not all of the details apply to the current version. So theres that. There are a few little thing they could do to improve.
As for the function . well it does what they claim. The bike feels rock solid when youre really pushing it. However the vibrations in the lower rpm range are ridiculous. I mean bad.
As for the function . well it does what they claim. The bike feels rock solid when youre really pushing it. However the vibrations in the lower rpm range are ridiculous. I mean bad.
HDF Community Team
Joined: Aug 2018
Posts: 3,028
Likes: 1,203
From: New Hampsha
IIRC, that center bolt has Loctite on it, so you'll have to remove it completely and reinstall it. Then, loosen everything up and let the engine resettle where it wants to be.
Club Member
Joined: Dec 2014
Posts: 10,734
Likes: 3,755
From: SWFL
My Predator is still sitting in a box, watching this thread. I had bad luck with a Cycle Hauss front motor mount (bagger style) - which introduced A LOT of vibration. Yes, I know it’s a Harley. I also know what’s normal and what’s not. This was bad. But someone said maybe I should have loosened the rear shocks or something else - I’ll have to re-read the post and maybe try again.
My new hesitation about installing the predator are thanks to this thread, for saying rear mount will wear faster. Stock rears generally last a long time. Rather not have it become a wear item. I should probably leave well enough alone, I find my handling pretty good - my FXR is obviously better, but the Dyna hasn’t protested against anything I’ve done in a while. But then again, I’m in the land of flat, straight, mind numbing boredom. So there’s that.
My new hesitation about installing the predator are thanks to this thread, for saying rear mount will wear faster. Stock rears generally last a long time. Rather not have it become a wear item. I should probably leave well enough alone, I find my handling pretty good - my FXR is obviously better, but the Dyna hasn’t protested against anything I’ve done in a while. But then again, I’m in the land of flat, straight, mind numbing boredom. So there’s that.
HDF Community Team
Joined: Aug 2018
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From: New Hampsha
If anything it extends it by reducing the fore and aft stresses on the rear mount. (IMHO)
Cruiser
Joined: Nov 2014
Posts: 227
Likes: 32
From: ok
My Predator is still sitting in a box, watching this thread. I had bad luck with a Cycle Hauss front motor mount (bagger style) - which introduced A LOT of vibration. Yes, I know its a Harley. I also know whats normal and whats not. This was bad. But someone said maybe I should have loosened the rear shocks or something else - Ill have to re-read the post and maybe try again.
My new hesitation about installing the predator are thanks to this thread, for saying rear mount will wear faster. Stock rears generally last a long time. Rather not have it become a wear item. I should probably leave well enough alone, I find my handling pretty good - my FXR is obviously better, but the Dyna hasnt protested against anything Ive done in a while. But then again, Im in the land of flat, straight, mind numbing boredom. So theres that.
My new hesitation about installing the predator are thanks to this thread, for saying rear mount will wear faster. Stock rears generally last a long time. Rather not have it become a wear item. I should probably leave well enough alone, I find my handling pretty good - my FXR is obviously better, but the Dyna hasnt protested against anything Ive done in a while. But then again, Im in the land of flat, straight, mind numbing boredom. So theres that.
Road Warrior
Joined: Dec 2017
Posts: 1,497
Likes: 2,810
From: Delaware
Predator has been great but it does add a weird vibration around 3k rpms but I'm usually above or slightly below that rpm so it isn't much of a factor even with metal pegs. I have not experienced any problems with it causing excessive wear to the rear rubber mount at all. I added a rear stabilizer because there's plenty of fast sweeping turns around here that have rain grooved pavement. I've had a few FXRs also and I'm currently building a touring FXR but I'm doing fresh Harley rubber for the pivot blocks, Bareknuckle swingarm bearing kit, and a Kinetic up front with an alloy art plate. A lot of people bitching about failing rubber engine mounts usually use Drag Specialties or something else of that nature. What brand of rubber mounts do the Chopper Hauss/Big Bear motor mounts come with? I bet it isn't the nicer Harley ones because they cost over twice as much. A Dyna is its own beast with the way the swingarm mounts and it simply needs an extra $$$ helping hand to make it handle right at speed. Stabilizers and a power train alignment would honestly come before suspension if I were to do it all again.
HDF Community Team
Joined: Aug 2018
Posts: 3,028
Likes: 1,203
From: New Hampsha
Or, if you want me to measure something on it, I'll do that free!
Road Warrior
Joined: Dec 2017
Posts: 1,497
Likes: 2,810
From: Delaware
Thanks for the offer but I have held both new and old style mounts in my hands and compared them and other than some different stampings in the metal body, they appear the same. I figured that if they were different part numbers, they must be different in some way but I could be wrong.
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HDF Community Team
Joined: Aug 2018
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From: New Hampsha
HDF Community Team
Joined: Apr 2018
Posts: 2,574
Likes: 1,067
From: Ohio
Did you loosen the center bolt in the Predator? The new rear mount probably wants to see the whole engine moved forward 1/4 to 3/8 of an inch. When you replaced the front mount, if it was collapsed. the rear mount had taken a set farther back.
IIRC, that center bolt has Loctite on it, so you'll have to remove it completely and reinstall it. Then, loosen everything up and let the engine resettle where it wants to be.
IIRC, that center bolt has Loctite on it, so you'll have to remove it completely and reinstall it. Then, loosen everything up and let the engine resettle where it wants to be.