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General Etiquette: Please only edit values if: a) you know what you're doing, and b) can post a photo with vernier caliper showing the measurement in the Ridemonkey "frankenbrake" thread
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MC Diameter Accuracy: Please note that Master (MC) piston diameter in mm has large impact on hydraulic leverage, this is an internal part and may be incorrect on some brakes. Please confirm this value before assuming it is correct.
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Other stuff: Keep main table for factory / retail brakes, for frankenbrake calculations scroll down this page and use sandbox. See extra sheets "Fluids" and "Weights" (tabs at bottom left) for other info.
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https://ridemonkey.bikemag.com/threads/frankenbrakes-and-brake-improvement-discussion.274164/
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delete avg. and keep peak only? ------------->
or at contact and max lever pull?
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Brake
Hydraulic Leverage Data
Rollback
Mechanical Leverage Data
Total System Leverage
Total w/ Rotor Leverage
Notes
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Slave 1 (mm)Slave 2 (mm)Slave AreaMaster (mm)Master AreaHydraulic LeverageTotal for both (mm)Middle of the pressing finger to blade pivot (mm) Blade pivot to cam, Max (mm)Min (mm)Mechanical Lev. (avg)Mechanical Lev. (peak)Total (or avg. for var. cams)Peak (for var. cams)160180203220
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Avid (DOT)
need to confirm mc diam.
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Code1615755.5539.570.8825.3306.13632.7030.0002.622.943.323.60
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Guide, Elixir Trail1614710.0009.570.8825.0080.0000.0000.000.000.000.00
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Elixir21692.7210.000#DIV/0!7398.111#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
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Juicy 3/5/720628.3199.570.8824.4320.0000.0000.000.000.000.00
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Level21692.721?
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0.0000.0000.000.000.000.00
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Formula (DOT / Min)
Need to confirm mc diam.
0.0000.0000.000.000.000.00
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RO (proprietary oval)25.3221007.20011.5103.8694.8480,390146.4006.60031.03032.0002.482.793.153.41
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RO '15 (T1 lev)24.875971.97911.5103.8694.6790,30.0000.0000.000.000.000.00
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RO '16 (R1Racing lev)25.3221007.2009.7574.6136.7500,36910.56.57144.3540.0003.553.994.504.88
inaccurate due to pull lever geometry
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T1, The One24904.77911.5103.8694.3550,350.0000.0000.000.000.000.00
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R122760.26511.5103.8693.6600,358914.56.13822.4630.0001.802.022.282.47
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Cura (mineral oil)24904.77910.586.5905.2240.4-0.4564.510.56.14332.0930.0002.572.893.263.53
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Cura 4 (mineral oil)18181017.87610.586.5905.8780,464.510.56.14336.1050.0002.893.253.663.97
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Hope (DOT)
Need to confirm mc diam.
0.0000.0000.000.000.000.00
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V225981.74811.5103.8694.72675116.81832.2220.0002.582.903.273.54
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TrialZone (Tech3, TZ blade)25981.7481078.5406.250110.0000.0000.000
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V4 (Tech3)1816911.0621078.5405.80067.5116.13635.5910.0002.853.203.613.92
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E4 (Tech3)1616804.2481078.5405.12067.5116.13631.4180.0002.512.833.193.46
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M4 (Tech Evo)1616804.24811.5103.8693.87175116.81826.3960.0002.112.382.682.90
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X222760.2650.000#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
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V4 (Tech Evo)1816911.06211.5103.8694.38675119.56.8187.90029.90234.6472.392.693.043.29
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0.0000.0000.000.000.000.00
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Trickstuff (DOT / Min)
MC diam confirmed (DRT)
0.0000.0000.000.000.000.00
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Direttissima (Min. Oil)1714761.836963.6175.9886.60039.5190.0003.163.564.014.35
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Maxima1716856.084963.6176.7287.40049.7900.0003.984.485.055.48
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Hayes (DOT)
Need to confirm mc diam.
0.0000.0000.000.000.000.00
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Prime Pro261061.85811.5103.8695.1120.0000.0000.000.000.000.00
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Dominion A41717907.9209.0864.7537.01165115.90941.426
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Dominion A224904.7799.0864.7536.98665115.90941.2830.0003.303.724.194.54
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Magura (Min. Oil)
MC diam confirmed (MT7)
0.0000.0000.000.000.000.00
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MT222100147.1430.0000.0000.000.000.000.00
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MT7, MT51717907.92010.586.5905.2437.36038.5860.0003.093.473.924.24
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MT6, MT822760.26510.586.5904.3900.0000.0000.000.000.000.00
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Marta SL22760.2651078.5404.8400.0000.0000.000.000.000.00
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Gustav M18181017.87610.586.5905.8780.0000.0000.000.000.000.00
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Louise, Louise FR22760.26512113.0973.3610.359.0509.50030.41831.9312.432.743.093.35
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Julie281231.50413132.7324.6390.25.3855.38524.98124.9812.002.252.542.75
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Shimano (Min. Oil)
M820 values confirmed
0.0000.0000.000.000.000.00
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M800, M75622760.2651078.5404.8400.0000.0000.000.000.000.00
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M810, M8201715807.3891078.5405.140621185.6367.75028.97139.8352.322.612.943.19
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M75515.513.5663.6611078.5404.2250.0000.0000.000.000.000.00
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M6401715807.3891078.5405.1400.0000.0000.000.000.000.00
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M78522760.2651078.5404.8400.0000.0000.000.000.000.00
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M800022760.2651078.5404.840621185.6367.75027.28037.5102.182.462.773.00
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M80201715807.3891078.5405.1400.0000.0000.000.000.000.00
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sandbox (for checking frankenbrake combos, etc)
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Comparison / ModificationPercent
Description of results
Additional Side Effects
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M785 to M820 gain6.2%
The M820 brake generates 06.2% greater braking force than M785 (lever differences not checked)
Longer throw, greater pad area
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Stock RO-R to Custom RO-R / Prime gain5.4%
The RO-Racing lever on Hayes Prime caliper gives ??% greater braking force
Longer throw
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Stock RO-R to Custom RO-R / V4 gain-9.5%
The RO-Racing lever on Hope V4 caliper gives 6.27% less braking force
Shorter throw, greater pad area
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225mm vs 203mm rotor9.8%
The 225mm rotor gives a 9.78% increase in braking force over 203mm
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26" to 27.5" wheel-4.0%
The 27.5" wheel results in a 4% drop in net braking force at contact patch (approx)
Further effects exist due to increased moment of inertia
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27.5" to 29" wheel-6.0%
The 29" wheel results in a further 6% drop in net braking force at contact patch (approx)
Further effects due to increased moment of inertia
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Hope E4 to V4 gain11.7%
The Hope V4 brake generates 11.72% greater braking force than the Hope E4
Longer throw, greater pad area
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Srope? Guide lever with Hope E4 caliper11-13%
Gives 13% increase over Guide and 11% over Hope Tech3/E4
Retains great modulation
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Shigura Setup (MT7 with Shimano Levers)1717907.9201078.5405.780
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Louise MC, Julie Caliper ??281231.50412113.0975.4449.0509.50049.27251.7223.944.435.005.42
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