Dyna Frame/Engine Brace.
Thread Starter
|
Road Captain
Joined: Jun 2013
Posts: 563
Likes: 370
From: Grimville just past Kurmsville
Lateral flew. The Sputhe Braces are specifically engineered to cure the Harley design flaw. They control or stop the side to side engine and transmission movement while still allowing the swing arm to flex up and down. While I had my back wheel off I checked the swing arm bearing and bushings for any excessive wear eliminated any cause or wobble coming from the swing arm. While I had the bike on the lift (off the ground) I also checked the front end fall away.eliminated the front end as any cause of the wobble.
My Norton was one of the best handling bikes I owned after I replaced and shimmed the motor mounts.
My Norton was one of the best handling bikes I owned after I replaced and shimmed the motor mounts.
Last edited by Tenfive0; Aug 1, 2023 at 09:41 PM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
Likes: 7,968
From: poway
Lateral flew. The Sputhe Braces are specifically engineered to cure the Harley design flaw. They control or stop the side to side engine and transmission movement while still allowing the swing arm to flex up and down. While I had my back wheel off I checked the swing arm bearing and bushings for any excessive wear eliminated any cause or wobble coming from the swing arm. While I had the bike on the lift (off the ground) I also checked the front end fall away.eliminated the front end as any cause of the wobble.
My Norton was one of the best handling bikes I owned after I replaced and shimmed the motor mounts.
My Norton was one of the best handling bikes I owned after I replaced and shimmed the motor mounts.
Cruiser
Joined: Dec 2013
Posts: 151
Likes: 75
From: Sweden
for those who has sputhe or similar stabilizers on their Dynas, has the vibrations gotten better or worse, i just bought a 2013 street bob and i have no wobble at all, even when pushed a little harder in the corners but it would be nice to have a little less wibes in and around town traffic.
Last edited by jyx; Aug 2, 2023 at 04:57 AM.
Thread Starter
|
Road Captain
Joined: Jun 2013
Posts: 563
Likes: 370
From: Grimville just past Kurmsville
I took apart or disassembled what I only thought was necessary to find a cause. I also checked the alignment according to the service manual. I did a thorough visual and static check and found no need to go further than replacing the motor mounts, rear tire and then adding the Sputhe Braces. I think everything accumulated, failing or worn motor mounts, a worn back tire and the need for braces added up to a big problem.
I didn't find any noticeable damage or broken components to either motor mount. There was some obvious dynamics going on because upon a visual inspection of the rear mount I found it to be twisted (top to bottom) off center. I probably didn't need the braces but I'll never know because I am not about to remove them to find out if I didn't need them. They are on the bike to stay because I think they are necessary or needed to stiffen up the drivetrain.
I didn't find any noticeable damage or broken components to either motor mount. There was some obvious dynamics going on because upon a visual inspection of the rear mount I found it to be twisted (top to bottom) off center. I probably didn't need the braces but I'll never know because I am not about to remove them to find out if I didn't need them. They are on the bike to stay because I think they are necessary or needed to stiffen up the drivetrain.
Thread Starter
|
Road Captain
Joined: Jun 2013
Posts: 563
Likes: 370
From: Grimville just past Kurmsville
for those who has sputhe or similar stabilizers on their Dynas, has the vibrations gotten better or worse, i just bought a 2013 street bob and i have no wobble at all, even when pushed a little harder in the corners but it would be nice to have a little less wibes in and around town traffic.
Edit: One thing I forgot to mention. When I got the Glide back together and test rode it I noticed the front end seemed screwy out of alignment. Upon inspection I noticed the front wheel was crooked. Something I didn't notice before the work I performed. I loosened the front fork brace and I lightly tapped or knocked the front wheel against a pole with the handlebar into straight alignment.
Last edited by Tenfive0; Aug 2, 2023 at 09:50 AM.
Grand HDF Member
Joined: Sep 2009
Posts: 4,540
Likes: 1,836
From: Albuquerque, NM
I like a steady even vibe. It is part of owning a Harley. It feels like you have something going on under you. It is the way it should be and what I am used to. If I wanted total solace and no vibe I'd never leave my Lazy Boy or I'd ride a Honda. Before I did what I did to my Wide Glide I was getting a weird harmonics (heavy negative waves) from the right side foot peg at and above 65 MPH in 5th gear. At continuous highway speed I'd have to move my right foot because the negative waves would become uncomfortable. I am guessing the negativity or harmonic weirdness was associated with engine RPM's more than speed or a combination of both. I'll never know because the Glide doesn't have a tachometer. I felt or knew something wasn't right or askew. Since I did what I did the askew weirdness is gone. The vibe is even and steady through the entire RPM and speed range. The Glide feels right now, harmonious and connected.
Thread Starter
|
Road Captain
Joined: Jun 2013
Posts: 563
Likes: 370
From: Grimville just past Kurmsville
I thought someone would pick up on the reference. Kelly's Hero's one of my all time favorite Movies.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Thread Starter
|
Road Captain
Joined: Jun 2013
Posts: 563
Likes: 370
From: Grimville just past Kurmsville
Not so fast? Something else might be going on. The front end still appears skewed. Something might be out of alignment as a result of the work I've done trying to fix the Dyna WOBBLE. The front fork brace hack I attempted might not have worked. The top triple tree and handle bars seem to not be centered while riding the bike. Further investigating might be necessary.