Caliper swap question
(11.8" is Std on 06-later Dynas for example).
Pads are positioned on the rotor surface just like you have now

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Last edited by ChickinOnaChain; Jul 14, 2018 at 12:13 PM.
It's been a while since I researched this but bolting on a pair of Touring Brembo calipers is not a direct fit to the 06-later Dyna series.
The bolt holes may line up but you'll have your pads overhanging the rotors slightly because the hole locations on the Dyna lower legs are not positioned like the Touring bikes.
Yeah, your brakes may seem to work but issues, serious issues, could result. Why do you think H-D doesn't just include the Brembo calipers on the higher-end Dyna models? I know, I know- they can be cheap sometimes.
For one thing, the overhanging pads can wear down on their contact area to an extent that the overhanging sections meet and prevent the pads from clamping down on the rotor. You may grab a hand full of brakes and not have any stopping power.
Seems like someone does make an adapter plate or new rotor that will allow use of the Touring Brembo calipers. Maybe member Nemo did that. I cannot remember.
Several other caliper options are out there with similar considerations.
My Dyna has the single caliper and I was hell-bent on improving the stopping power so I looked into all of this a couple of years ago. I even bought one of the high-zoot Performance Machine 6-piston calipers that fit my bike. But, guess what, the PM 6-piston didn't grab as well as the stock unit so I sold the PM and went back to stock.
I then investigated going to the double calipers but ran across the then-new Arlen Ness Big Brake rotors. I went with one of those using my stock caliper and I am very satisfied. I do some serious curvy road riding with my Ohlins-equipped Dyna and I don't run out of brakes. I also think the Big Brake looks better than having all of that brake hardware hanging in front of my wheel spokes.
The cats hat may be converting your dual stock brakes to dual Big Brake rotors! I can't imagine what power that would yield.
.
Last edited by leafman60; Jul 14, 2018 at 07:34 AM.
It's been a while since I researched this but bolting on a pair of Touring Brembo calipers is not a direct fit to the 06-later Dyna series.
The bolt holes may line up but you'll have your pads overhanging the rotors slightly because the hole locations on the Dyna lower legs are not positioned like the Touring bikes.
Yeah, your brakes may seem to work but issues, serious issues, could result. Why do you think H-D doesn't just include the Brembo calipers on the higher-end Dyna models? I know, I know- they can be cheap sometimes.
For one thing, the overhanging pads can wear down on their contact area to an extent that the overhanging sections meet and prevent the pads from clamping down on the rotor. You may grab a hand full of brakes and not have any stopping power.
Seems like someone does make an adapter plate or new rotor that will allow use of the Touring Brembo calipers. Maybe member Nemo did that. I cannot remember.
Several other caliper options are out there with similar considerations.
My Dyna has the single caliper and I was hell-bent on improving the stopping power so I looked into all of this a couple of years ago. I even bought one of the high-zoot Performance Machine 6-piston calipers that fit my bike. But, guess what, the PM 6-piston didn't grab as well as the stock unit so I sold the PM and went back to stock.
I then investigated going to the double calipers but ran across the then-new Arlen Ness Big Brake rotors. I went with one of those using my stock caliper and I am very satisfied. I do some serious curvy road riding with my Ohlins-equipped Dyna and I don't run out of brakes. I also think the Big Brake looks better than having all of that brake hardware hanging in front of my wheel spokes.
The cats hat may be converting your dual stock brakes to dual Big Brake rotors! I can't imagine what power that would yield.
.
Do a search of the forum. I think there's a way to properly adapt the Touring Brembo brakes to your legs. I think somebody makes an adapter fitting. I just don't remember all of this.
In the mean time, you may try bleeding those stock calipers. I also like to use DOT 5.1 fluid (glycol, not silicone 5.0). It gives a better feel.
If you really wanna go overboard, look into a pair(!) of the Ness Big Brake calipers (using your stock pinchers).
.
The pic is showing what happens to the Pads when you use HD Brembos on a 06-later Dyna using any 11.8" (300mm) rotors.
You really need 12.1" rotors with a HD bolt pattern ... good luck with that

See the Ridges on the top edges of the pads where the diameter of the rotor stops within the pad material surface
Last edited by multihdrdr; Jul 15, 2018 at 11:42 PM.
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