aim clutch
Road Warrior
Joined: Nov 2006
Posts: 1,561
Likes: 33
From: San Diego, CA
As far as I have been able to find out, All of the A&S factory clutch assemblies are the same other than the springs. So it has to be something else causing them to be all over the road, as they should all be very much the same. Now we know they have been changing the hydraulics so that's the area I'm trying to follow along now. I've ordered a new master for the 17 RK so I can take it apart and measure the bore and stroke on it and I have an earlier one already so I will compare the two of them, once the new one gets here.
HD EFI Guru
Joined: Jan 2008
Posts: 4,494
Likes: 4,782
I would think the the Master would remain unchanged as the big change in 2017 in the Engine, Tranny, Cases and such. I would look into the Slave Cylinder, it may have been retooled. No reason to change the master as it sits atop the handlebars same as the Rushmore bikes.
Thread Starter
|
Road Captain
Joined: Apr 2006
Posts: 515
Likes: 41
From: long island ny
Update, got the clutch today. Differences, the new springs ( orange ) are noticebly shorter than the stock, the new springs are about 20lbs lighter in pressure for each, that means total of 60lbs less overall, and that is noticeable when pulling the lever. Took quick trip around block ( weather bad ) and it feels much nicer now, wasn't able to get on it but I'm thinking it's going to be fine, but time will tell.
Stellar HDF Member
Joined: Feb 2013
Posts: 2,325
Likes: 333
From: Upper Providence Pa
I agree the master is changed.... the master reservoir cover is not interchangeable with 16 to 17 model year. 17 is differant
Seasoned HDF Member
Joined: Nov 2016
Posts: 6,090
Likes: 6,451
From: East TN
As far as I have been able to find out, All of the A&S factory clutch assemblies are the same other than the springs. So it has to be something else causing them to be all over the road, as they should all be very much the same. Now we know they have been changing the hydraulics so that's the area I'm trying to follow along now. I've ordered a new master for the 17 RK so I can take it apart and measure the bore and stroke on it and I have an earlier one already so I will compare the two of them, once the new one gets here.
The 17 is clearly different. With springs being the only change, hydraulics has to be the difference.
Cruiser
Joined: Nov 2016
Posts: 156
Likes: 206
From: Americus Georgia
From MoCo on new clutch master, FYI
What improvements did you make to the driveline?
For starters, we retuned the primary. The compensator bearings were changed, and the ramps changed. This is another place where we analyzed the crap out of it. We completely correlated our models with many vehicles. The goal was smooth torque in all conditions. Complementing that, the clutch was changed to an Assist and Slip Clutch. As you apply load, it pulls the clutch together to minimize spring pressure. Less lever effort per foot-pound that way. Whenever you up performance, you need more spring in the clutch. We went with a hydraulic Brembo activation system across the board on the Touring models to offset that. It’s better at the lever ergonomically.
What improvements did you make to the driveline?
For starters, we retuned the primary. The compensator bearings were changed, and the ramps changed. This is another place where we analyzed the crap out of it. We completely correlated our models with many vehicles. The goal was smooth torque in all conditions. Complementing that, the clutch was changed to an Assist and Slip Clutch. As you apply load, it pulls the clutch together to minimize spring pressure. Less lever effort per foot-pound that way. Whenever you up performance, you need more spring in the clutch. We went with a hydraulic Brembo activation system across the board on the Touring models to offset that. It’s better at the lever ergonomically.
Stellar HDF Member
Joined: Feb 2013
Posts: 2,325
Likes: 333
From: Upper Providence Pa
From MoCo on new clutch master, FYI
What improvements did you make to the driveline?
For starters, we retuned the primary. The compensator bearings were changed, and the ramps changed. This is another place where we analyzed the crap out of it. We completely correlated our models with many vehicles. The goal was smooth torque in all conditions. Complementing that, the clutch was changed to an Assist and Slip Clutch. As you apply load, it pulls the clutch together to minimize spring pressure. Less lever effort per foot-pound that way. Whenever you up performance, you need more spring in the clutch. We went with a hydraulic Brembo activation system across the board on the Touring models to offset that. Its better at the lever ergonomically.
What improvements did you make to the driveline?
For starters, we retuned the primary. The compensator bearings were changed, and the ramps changed. This is another place where we analyzed the crap out of it. We completely correlated our models with many vehicles. The goal was smooth torque in all conditions. Complementing that, the clutch was changed to an Assist and Slip Clutch. As you apply load, it pulls the clutch together to minimize spring pressure. Less lever effort per foot-pound that way. Whenever you up performance, you need more spring in the clutch. We went with a hydraulic Brembo activation system across the board on the Touring models to offset that. Its better at the lever ergonomically.
There you have it!!! Thanks George.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
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