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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #1  
Old 4 Weeks Ago
Hennepinboy Hennepinboy is offline
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Default Improving braking 66 XLH RestoMod

The fork I am running on the 66 XLH RestoMod, I have been told that they are from a early 70's Superglide, could be a early 70's Sportster. Big ugly caliper anchored to the front axle and one bolt on the fork leg.
Problem is the poor braking.

Front disc brake
I plan to have new friction maternal bonded to the steel backing plate and to replace the steel tube/rubber hose brake line with braided stainless lines (black to match the clutch cable).

Rear drum brake
I also plan to have the rear stock drum brake upgraded. New friction maternal bonded to the shoes, drum cleaned up to assure it true and round, and have the brake shoes radius to match the drum. Radiused the shoe give you close to 100% contact with the drums.

Any other ideas that may help improve braking.

Thanks Curt
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  #2  
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Heff Heff is offline
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Sounds like a banana caliper.
My only experience with that set-up was on a 74 flh. Horrible, horrible brakes. Even with new pads, hoses, master cylinders, rebuilt calipers...i wasnt impressed at all. Compared to the drum brake on the 71 flh I had, i would stick with drums on older Harleys.
If you have a disc front end with the banana caliper, you should have trees etc for a 35mm front end...so you could use late model narrow glide forks etc, with dual discs and matching master cylinder, that would a good start to better slowing, especially with sintered pads and stainless hoses.
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  #3  
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1Scooter 1Scooter is offline
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Well it could be a banana caliper or pie caliper, since both are as ugly as sin. My 77 has the pie caliper. I re-surfaced the rotor, replaced the OEM brake hose and put new SEMI METALLIC pads on it. Went with SEMI METALLIC rear shoes too. Poor brake performance is no longer an issue.
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Hennepinboy Hennepinboy is offline
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Checking I have what is called a Pie Caliper.
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kitabel kitabel is offline
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Don't spend a lot of money on the rear drum, it doesn't do much.
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  #6  
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As Kitabel said, there’s not a lot you can do with the stock drum.
Back in the day there were folks making aftermarket steel drums and steel backing plates.
I’m not sure if they’re still being made.

I had both and had some new type liner bonded to the shoes and radiused to the drum.
The combination of the liner and the rigidity of the steel components really improved the efficiency and the linings lasted a couple seasons at least.

Getting everything back there set right while adjusting chain tension and then brake alignment is tedious but very critical to maximize rear braking and stopping in a straight line.
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woven brake linings will help the rear drum brake from chuck's thread http://xlforum.net/forums/showthread.php?t=1974040
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