Differences

This shows you the differences between two versions of the page.

--- techtalk:ref:wheels12 [2020/06/24 03:18]
hippysmack [Got the Caliper But What Size Master Cylinder to Use?]
+++ techtalk:ref:wheels12 [2023/10/28 15:24]
hippysmack [REF: Wheels, Brakes & Tires]
@@ Line 2: / Line 2: @@
 ====== REF: Wheels, Brakes & Tires ======
 \\
+{{ :common:brakes-animation_by_graywolf.gif?nolink |animation by Graywolf of the XLFORUM}} \\
 ====== Brake System Upgrades ======
 \\
@@ Line 24: / Line 26: @@
   * 5/8" = 15.875mm
   * 3/4" = 19.05mm
+  * 1-3/8" = 34.9mm
+  * 1-3/4" = 44.5mm
+  * 1-7/8" = 47.6mm
   * General rule of thumb when swapping master cylinders is: ((XLdaveR of the XLFORUM http://xlforum.net/forums/showthread.php?t=786022))
@@ Line 66: / Line 71: @@
 You'll need to find the area of the piston(s) for the intended caliper used. The area is proportional to the square of the diameter. \\
 I.E, going from 2 caliper pistons to 4 caliper pistons (doubling the area), the diameter of the M/C should be multiplied by sqrt(2) = 1.4, not doubled.
+Example; \\
+A stock setup with a 1/2" master and a single caliper with (2)-27mm pucks has a ratio of (9.03:1). \\
+If you want to upgrade to a 2 caliper (4)-27mm system using the same 1/2" master, the ratio would now be (19.44:1). \\
+That would be more of a touchy feel, easier to lock the brakes, possible lever hitting the bars before pressure builds sufficiently. \\
+If you want it closer to what the factory ratio or maybe just a little more pressure but not real touchy, you could use a 11/16" bore master. \\
+That puts the ratio at (9.55:1). You get less heat buildup with more pistons and slightly higher ratio. \\
+The Moco actually used a 14mm master with the (4)-27mm dual caliper setup with a ratio of (14.87:1). \\
 Using the master to caliper ratio chart below, you can see the ratios between the stock setup and what you want to upgrade to. \\
@@ Line 128: / Line 141: @@
 ^50mm (4)|7854.00|100.00|82.64|69.44|62.00|59.17|51.02|49.62|44.44|39.68|39.06|32.79|27.70|
+====== Non Sportster HD Master Cylinders ======
+  * [[techtalk:ref:wheels12a|List of (Non Sportster) HD Front Master Cylinders]]
+  * [[techtalk:ref:wheels12b|VROD Brembo Caliper Install on 2007 883L]]
+  * [[techtalk:ref:wheels12c|XR1200 brakes on a 2007 1200R]]
+====== Brembo Calipers ======
-====== Brembo ======
 ===== 4 Piston Brembo =====
@@ Line 155: / Line 175: @@
 {{:techtalk:ref:wheels:vrod_brembo_front_caliper_rebuild_1_by_bassboy311.jpg?direct&300|}} ((photo by bassboy311 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1127805)) {{:techtalk:ref:wheels:vrod_brembo_front_caliper_rebuild_2_by_bassboy311.jpg?direct&250|}} ((photo by bassboy311 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1127805)) {{:techtalk:ref:wheels:vrod_brembo_front_caliper_rebuild_3_by_bassboy311.jpg?direct&300|}} ((photo by bassboy311 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1127805)) \\
-====== GMA ======
+====== GMA Calipers ======
 ===== GMA-200E =====
@@ Line 171: / Line 191: @@
   * **Not recommended for use with imported stainless steel rotors**.
+|GMA 4-pot calipers on a 1977 XLH ((photo by BLIGHT of the XLFORUM http://xlforum.net/forums/showthread.php?t=667563&page=3))|GMA 4-pot calipers on a 1978 XLH ((photos by ericfreeman of the XLFORUM http://xlforum.net/forums/showthread.php?t=667563&page=3)) \\ Custom brake lines & angled banjo adapter to make bleeding the calipers easier.||
+|{{:techtalk:ref:wheels:1977_xlh_w_gma_caliper_by_blight.jpg?direct&300|}}|{{:techtalk:ref:wheels:1978_xlh_w_gma_caliper_pic1_by_ericfreeman.jpg?direct&300|}}| {{:techtalk:ref:wheels:1978_xlh_w_gma_caliper_pic2_by_ericfreeman.jpg?direct&300|}}|
+====== Wilwood Calipers ======
+  * [[techtalk:ref:wheels12g|Wilwood GP-310 Brake Caliper on 1996 XL1200]]
-====== Wilwood ======
 ===== 4 Piston Wilwood =====
-GP310 Front (1984-1999) ((https://www.wilwood.com/Calipers/CaliperProd?itemno=120-7737-BK)) \\
+GP310 Front (1984-1999) [[https://www.wilwood.com/Calipers/CaliperProd?itemno=120-7737-BK|See link here]] \\
 Wilwood's GP310 motorcycle disc brake caliper has been designed and engineered for use on 1984 to 1999 Harley-Davidson Motorcycles. \\
 Built around a 4-piston, high performance powerhouse, this billet aluminum caliper brings distinctive, bolt-on styling: \\
@@ Line 188: / Line 208: @@
 Suggested Rotor Diameter: 11" to 11-1/2" \\
 Rotor Width: 0.18" to 0.25" \\
+Brake Pads:
+  * Wilwood Part# (6208) [[https://www.wilwood.com/BrakePads/BrakePadsList?padtype=6208|See link here]]
+    * Thickness (in): .30
+    * Pad Area (in²): 3.65
+    * Pad Volume (in³): 0.63
+  * Galfer pads: ((bplinson of the XLFORUM http://xlforum.net/forums/showthread.php?t=73101))
+    * FD068G1054 = Organic
+    * FD068G1375 = Sintered
+  * EBC:
+    * FA95 = Organic
+    * FA95HH = Sintered
+A couple of handy phone numbers: \\
+Wilwood (805) 388-1188 \\
+Galfer (800) 685-6633 \\
+Caliper Bolt Torque (per Wilwood): 22 ft-lbs \\
-====== Non Sportster HD Master Cylinders ======
-  * [[techtalk:ref:wheels12j|List of (Non Sportster) HD Front Master Cylinders]]

Trace:

Differences

Navigation

Search

Toolbox