Question for Predator Front Mount Users
Cruiser
Joined: Feb 2019
Posts: 154
Likes: 43
From: NV
Well the snow has been gone off the roads and I've finally had some time to ride the bike. Bike does feel more stable in general but I'm still getting that damn wobble around 90+ in the corners. I guess it's on to find the next possible culprit. Still happy with the predator though, definitely better than the soggy marshmallow mount that was replaced.
Nobody
Nobody
Outstanding HDF Member
Joined: Nov 2009
Posts: 2,666
Likes: 133
From: TEXAS
Well the snow has been gone off the roads and I've finally had some time to ride the bike. Bike does feel more stable in general but I'm still getting that damn wobble around 90+ in the corners. I guess it's on to find the next possible culprit. Still happy with the predator though, definitely better than the soggy marshmallow mount that was replaced.
Nobody
Nobody
If if feels like the back end is flexing going around turns its because it probably is.
Im guessing you know this anyway but I will say it just it case. The swing arm is connected to the transmission, the transmission is connected to the frame with one of those marshmallow mounts you took off the front. Under stress like high speed cornering or a heavy loaded bike going around a corner that rubber flexes and the back flexes more than the front because most of the weight and momentum is pushing the back tire toward the outside of the turn. Basically you need a rear true track or sputhe mount that limits lateral flex or movement.
If it is a true wobble there are a ton of things that can cause that
Ultimate HDF Member
Joined: Apr 2014
Posts: 6,322
Likes: 2,500
From: Tennessee
The Predator mount is one of the single best changes that I have made to my Dyna....That mount and the suspension upgrades have brought the handling into FXR territory I rode FXR's for more than 30 years and I can honestly say my Dyna now handles as well as any FXR I ever had. (Sorry FXR guys)
It changes the characteristics of the vibration as well....My motorcycle is smoother at high speed with the Predator mount and is about the same at idle.
It changes the characteristics of the vibration as well....My motorcycle is smoother at high speed with the Predator mount and is about the same at idle.
Advanced
Joined: Jul 2018
Posts: 73
Likes: 19
From: NC
Now having installed the Predator mount on three dynas I have observed the following. It does help with vibration. However, it really depends on the bike as to how much. On my 09 FXDF it reduced vibrations mainly while sitting still, but you could use the mirrors at some speeds where as I couldn't before. Overall I'd say it improved my bike around 25% with vibrations. In the handling department it may have helped some but my bike always handled well in just vibrates a lot. I also have CCE / Sputhe rear mounts and legend shocks.
On one 15 street bob in made zero change at all in any way. The stock mount was worn but not worn out. The owner just wanted the try the Predator. If it made any difference none of us could tell. (WEIRD)
Yet on another 12 street bob it was like you mounted the motor with unicorn magic. It made the bike pleasant at all speeds and it handled as well as a stock SB could.
IMO.... If you have a bike that has vibration problems and has always had them then you probably need to look at balancing the crank. ( definitely on my to do list for this winter )
If you just have a worn stock motor mount and are looking for a better upgrade then go with the Predator. The Predator is a better solution so it can't hurt.
Dynas are by far my favorite Harley platform but getting one that was built on a Thursday just after lunch and it's pay week is very rare.
On one 15 street bob in made zero change at all in any way. The stock mount was worn but not worn out. The owner just wanted the try the Predator. If it made any difference none of us could tell. (WEIRD)
Yet on another 12 street bob it was like you mounted the motor with unicorn magic. It made the bike pleasant at all speeds and it handled as well as a stock SB could.
IMO.... If you have a bike that has vibration problems and has always had them then you probably need to look at balancing the crank. ( definitely on my to do list for this winter )
If you just have a worn stock motor mount and are looking for a better upgrade then go with the Predator. The Predator is a better solution so it can't hurt.
Dynas are by far my favorite Harley platform but getting one that was built on a Thursday just after lunch and it's pay week is very rare.
Outstanding HDF Member
Joined: Nov 2009
Posts: 2,666
Likes: 133
From: TEXAS
Now having installed the Predator mount on three dynas I have observed the following. It does help with vibration. However, it really depends on the bike as to how much. On my 09 FXDF it reduced vibrations mainly while sitting still, but you could use the mirrors at some speeds where as I couldn't before. Overall I'd say it improved my bike around 25% with vibrations. In the handling department it may have helped some but my bike always handled well in just vibrates a lot. I also have CCE / Sputhe rear mounts and legend shocks.
On one 15 street bob in made zero change at all in any way. The stock mount was worn but not worn out. The owner just wanted the try the Predator. If it made any difference none of us could tell. (WEIRD)
Yet on another 12 street bob it was like you mounted the motor with unicorn magic. It made the bike pleasant at all speeds and it handled as well as a stock SB could.
IMO.... If you have a bike that has vibration problems and has always had them then you probably need to look at balancing the crank. ( definitely on my to do list for this winter )
If you just have a worn stock motor mount and are looking for a better upgrade then go with the Predator. The Predator is a better solution so it can't hurt.
Dynas are by far my favorite Harley platform but getting one that was built on a Thursday just after lunch and it's pay week is very rare.
On one 15 street bob in made zero change at all in any way. The stock mount was worn but not worn out. The owner just wanted the try the Predator. If it made any difference none of us could tell. (WEIRD)
Yet on another 12 street bob it was like you mounted the motor with unicorn magic. It made the bike pleasant at all speeds and it handled as well as a stock SB could.
IMO.... If you have a bike that has vibration problems and has always had them then you probably need to look at balancing the crank. ( definitely on my to do list for this winter )
If you just have a worn stock motor mount and are looking for a better upgrade then go with the Predator. The Predator is a better solution so it can't hurt.
Dynas are by far my favorite Harley platform but getting one that was built on a Thursday just after lunch and it's pay week is very rare.
Dang!
Unicorn magic!
you lucked out, that ***** hard to come by these days!
Cruiser
Joined: Feb 2019
Posts: 154
Likes: 43
From: NV
Is it a wobble or does it feel like the back end is flexing or sliding out?
If if feels like the back end is flexing going around turns its because it probably is.
Im guessing you know this anyway but I will say it just it case. The swing arm is connected to the transmission, the transmission is connected to the frame with one of those marshmallow mounts you took off the front. Under stress like high speed cornering or a heavy loaded bike going around a corner that rubber flexes and the back flexes more than the front because most of the weight and momentum is pushing the back tire toward the outside of the turn. Basically you need a rear true track or sputhe mount that limits lateral flex or movement.
If it is a true wobble there are a ton of things that can cause that
If if feels like the back end is flexing going around turns its because it probably is.
Im guessing you know this anyway but I will say it just it case. The swing arm is connected to the transmission, the transmission is connected to the frame with one of those marshmallow mounts you took off the front. Under stress like high speed cornering or a heavy loaded bike going around a corner that rubber flexes and the back flexes more than the front because most of the weight and momentum is pushing the back tire toward the outside of the turn. Basically you need a rear true track or sputhe mount that limits lateral flex or movement.
If it is a true wobble there are a ton of things that can cause that
Nobody
Advanced
Joined: Oct 2018
Posts: 75
Likes: 27
From: T
Well the snow has been gone off the roads and I've finally had some time to ride the bike. Bike does feel more stable in general but I'm still getting that damn wobble around 90+ in the corners. I guess it's on to find the next possible culprit. Still happy with the predator though, definitely better than the soggy marshmallow mount that was replaced.
Nobody
Nobody
Is it a wobble or does it feel like the back end is flexing or sliding out?
If if feels like the back end is flexing going around turns its because it probably is.
Im guessing you know this anyway but I will say it just it case. The swing arm is connected to the transmission, the transmission is connected to the frame with one of those marshmallow mounts you took off the front. Under stress like high speed cornering or a heavy loaded bike going around a corner that rubber flexes and the back flexes more than the front because most of the weight and momentum is pushing the back tire toward the outside of the turn. Basically you need a rear true track or sputhe mount that limits lateral flex or movement.
If it is a true wobble there are a ton of things that can cause that
If if feels like the back end is flexing going around turns its because it probably is.
Im guessing you know this anyway but I will say it just it case. The swing arm is connected to the transmission, the transmission is connected to the frame with one of those marshmallow mounts you took off the front. Under stress like high speed cornering or a heavy loaded bike going around a corner that rubber flexes and the back flexes more than the front because most of the weight and momentum is pushing the back tire toward the outside of the turn. Basically you need a rear true track or sputhe mount that limits lateral flex or movement.
If it is a true wobble there are a ton of things that can cause that
If you're considering it, you already need it. Take the leap, you wont regret it.
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Road Captain
Joined: Apr 2018
Posts: 667
Likes: 189
From: U.K.
On my list, along with suspension and brake upgrades next winter. Only had the bike six months, so i'm holding off with anymore mods this summer and i'm just going to enjoy putting on the miles. But i do know the handling is going to need sorting, high speed cornering is erm... entertaining, to say the least. I'm sure my current setup will show it's limitations even more as the road conditions improve and i can push even harder.
Cruiser
Joined: Feb 2019
Posts: 154
Likes: 43
From: NV
Similar situation here, but it was 82+, straight & gentle curve down hill, headwind, accelerating to overtake. Prior to that the frequency is very difficult to attain, and the wobble does not present itself at speeds lower than ~82mph. Flat road with the same variables and the bike is glassy smooth up to about 90. Previously, I don't even think the bike would let me do 75 safely much less hit a bump, take a turn at, or crack the throttle more at that speed.
It's more like a systemic "wagging" of the entire bike, building in frequency from the rear until you or an outside force ends the frequency. But I do agree, it emanates from the rear and grows towards the front. Need to get that rear mount on order already! Maybe I should replace the swing arm bushings while down there.
It's more like a systemic "wagging" of the entire bike, building in frequency from the rear until you or an outside force ends the frequency. But I do agree, it emanates from the rear and grows towards the front. Need to get that rear mount on order already! Maybe I should replace the swing arm bushings while down there.
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