2019 Heritage / Engine? vibration
Thread Starter
|
Tourer
Joined: May 2019
Posts: 295
Likes: 110
From: KY
2019 Heritage / Engine? vibration
Hello, all.
I have a 2019 Heritage that just received two new Michelin Commander III tires (just passed through 9000 miles). Drove off the dealership lot and immediately knew something was different so I suspected new tires, different tread, etc. But after I got home (20 minute ride), I knew something was very different and not good. After several riding scenarios and experimentation, this is the problem: between 30 and 50 mph (not necessarily RPM related), there is a definite vibration that is cycling up and down about once a second and does not seem to vary a significant amount in repetition between those speeds (does that make sense?). In other words, the wheels are rotating many more times per second that the vibration cycles and the cycle is about once a second. Most notable if the clutch is engaged at 45 mph and just coast down to 30 mph.
I took it back to the dealership and a mechanic confirmed the issue. It is in the shop now but after 4 days of bad weather (no additional test drive) no answer as to what it could be.
Thought the forum would have some ideas? I also posted in "general" issues.
Thanks.
I have a 2019 Heritage that just received two new Michelin Commander III tires (just passed through 9000 miles). Drove off the dealership lot and immediately knew something was different so I suspected new tires, different tread, etc. But after I got home (20 minute ride), I knew something was very different and not good. After several riding scenarios and experimentation, this is the problem: between 30 and 50 mph (not necessarily RPM related), there is a definite vibration that is cycling up and down about once a second and does not seem to vary a significant amount in repetition between those speeds (does that make sense?). In other words, the wheels are rotating many more times per second that the vibration cycles and the cycle is about once a second. Most notable if the clutch is engaged at 45 mph and just coast down to 30 mph.
I took it back to the dealership and a mechanic confirmed the issue. It is in the shop now but after 4 days of bad weather (no additional test drive) no answer as to what it could be.
Thought the forum would have some ideas? I also posted in "general" issues.
Thanks.
Grand HDF Member
Joined: Nov 2009
Posts: 4,315
Likes: 1,663
From: Tampa
I've bought bad tires before. I once put an Metzeler ME888 touring tire on the back of my Vision since it got good reviews and had a great price from Chaparral. I installed it myself like many tires before (balanced and everything) and it would send this weird vibration thru the chassis as I was slowing down. It would always happen from 10 to 5 mph on decel, coasting (off the brakes), usually as I was turning into a driveway or making a turn onto a side street. I even fully removed it and reinstalled it (and balanced again) and it still happened. I had full warranty on the purchase so I returned it and bought an Avon. Much better, no more shakes.
Food for thought.
Food for thought.
Road Master
Joined: Jun 2019
Posts: 952
Likes: 528
From: Richmond TX
So this started with installation of the new tires. Surely that's not a coincidence. At least one of these tires has some sort of flaw or is seriously out of balance. Maybe the high speed vibration at 1x wheel rotation is setting up a harmonic resonance somewhere on the frame? Maybe the front end vibrates about once per second over a given speed range? It may never be important to know what's going on but it likely won't go away until the tires are changed out, or maybe if they get a proper dynamic balance. Good luck! I hope you post the rest of the story.
Thread Starter
|
Tourer
Joined: May 2019
Posts: 295
Likes: 110
From: KY
I've bought bad tires before. I once put an Metzeler ME888 touring tire on the back of my Vision since it got good reviews and had a great price from Chaparral. I installed it myself like many tires before (balanced and everything) and it would send this weird vibration thru the chassis as I was slowing down. It would always happen from 10 to 5 mph on decel, coasting (off the brakes), usually as I was turning into a driveway or making a turn onto a side street. I even fully removed it and reinstalled it (and balanced again) and it still happened. I had full warranty on the purchase so I returned it and bought an Avon. Much better, no more shakes.
Food for thought.
Food for thought.
Thread Starter
|
Tourer
Joined: May 2019
Posts: 295
Likes: 110
From: KY
So this started with installation of the new tires. Surely that's not a coincidence. At least one of these tires has some sort of flaw or is seriously out of balance. Maybe the high speed vibration at 1x wheel rotation is setting up a harmonic resonance somewhere on the frame? Maybe the front end vibrates about once per second over a given speed range? It may never be important to know what's going on but it likely won't go away until the tires are changed out, or maybe if they get a proper dynamic balance. Good luck! I hope you post the rest of the story.
Thread Starter
|
Tourer
Joined: May 2019
Posts: 295
Likes: 110
From: KY
Stay tuned.
Thread
Thread Starter
Forum
Replies
Last Post
UNCCHarley
General Harley Davidson Chat
37
Jun 11, 2007 12:11 AM
