FFT: Real World OSPW Pulley Gains-Losses [Quick Link fft.tips/ospw]
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access this sheet top left or by joining our google group....................
https://groups.google.com/forum/#!forum/fastfitnesstips
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FFT OSPW Real World Marginal Gains
FFT OSPW Real World Marginal Gains
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>> helps you calculate your time saving when installing oversize rear pulley cage and bearings (OSPW)
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Type of bike event (road/gravel/TT)?Road
<< select ride type
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Enter your EVENT power (watts)600watts
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2
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Enter planned ride distance100.00km
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2
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Your current weight (& units)83.0kg
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Enter average ride incline (%)5
% grade
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Projected approx ride speed ..........................
33.20kph
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Projected approx ride time ..........................
3 hrs 00 mins 47 secs3 hrs 00 mins 47 secs
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automatically generated
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Raw Savings
Scaling Effect of OSPW savings
Converted to Secs Saved/Lost
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edit with caution
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-34g
weight
weight change estimate (grams)-34g-0.03 kph................>>>>-0 hrs 00 mins 05 secs
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default = -34automatically generated
-34g | -1.1968 ounces
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Rough watts
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1.41.4w
drivetrain
Drivetrain friction gains2.37................>>>>0 hrs 00 mins 52 secs
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default = 1.4automatically generated
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-0.8waeroAerodrag losses-0.6................>>>>-0 hrs 00 mins 13 secs
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default = -0.8automatically generated
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Cummulative change (actually a saving) 0 hrs 00 mins 34 secs
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38.35
Aero_clothing
Wore a skinsuit vs good fitting road kitNil
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6.8
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4.67
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3.8We invite you to Join:0.00
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2.4
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1.6
https://www.strava.com/clubs/fastfitnesstips
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1.4
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0.977
https://www.patreon.com/fastfitnesstips
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0.255
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15Share this sheet:
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11.5
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9.8https://fft.tips/surface0
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9.70
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8.66Related Sheets0
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7.650
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4.78https://fft.tips/pressure0
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5.50
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5.4https://fft.tips/tyre0
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3.20
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3.1Social Links0
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30
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2.8https://fft.tips/facebook00.0001376040884
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2.500.0001229018671
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2.33https://fft.tips/strava00.0001145662454
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2.200.0001081898154
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2.1https://fft.tips/instagram00.0001032836117
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1.900.0000934679221
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1.88https://fft.tips/twitter00.00009248611235
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1.800.00008855843541
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1.38https://fft.tips/youtube00.00006792662732
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1.2200.00006006180295
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1.1200.00005514486099
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0.96NilNil00.00004727546987
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0.77NilNil00.00003792691476
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0.75NilNil00.0000369426255
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0.62#REF!#REF!#REF!0.00003054367309
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0.51NilNil00.00002512772285
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0.47NilNil00.00002315795627
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0.38NilNil00.00001872533753
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0.22NilNil00.00001084292409
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0.18NilNil00.000008871880099
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44NilNil00.002067992497
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19NilNil00.0009172283202
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17NilNil00.0008224701079
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11.1NilNil00.0005405104777
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4.21NilNil00.0002065731835
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4.55NilNil00.0002231716999
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5.1NilNil00.000249995721
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2.7NilNil00.0001327044395
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0.432NilNil0.0000212865149
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7.77#REF!#REF!#REF!0.0003797504345
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1.89NilNil00.0000929770227
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0.42NilNil00.00002069550039
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0.123
Drivetrain
Optimized (waxed) cassette (see bit.ly/fftdrivetrain)NilNil00.000006062837789
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2.5
Drivetrain weight
Lightweight groupset (eg 2kg vs 2.5kg)use G30use G3000.0001229018671
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1.4
OSPW_Drivetrain
Oversize pulley cage (CS OSPW +1.4w - 0.8w +22g of aero loss)
#REF!#REF!#REF!0.00006890953289
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-0.8
OSPW_Aero
Oversize pulley cage (CS OSPW +1.4w - 0.8w +22g of aero loss)
#REF!#REF!#REF!0.00003947383628
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1x_Drivetrain
1x vs 2x (3.4w drivertain 1.64aero 330g)#REF!#REF!#REF!40.0002451210618
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1x_Aero
1x vs 2x (3.4w drivertain 1.64aero 330g)#REF!#REF!#REF!0.00029381903
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9.999
Equipment Weight
Equipment weight gain or loss (eg 7kg to 9kg = 2kg) (Use G30 above)
use G30use G3000.0004874887702
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4.22MiscNot excessively rigid frameNilNil00.0002070615542
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0.05MiscGood headset bearings (low friction losses)NilNil00.000002464769398
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Rider size
Rider has large (with a slow CDA) vs smaller sizeNilNil00.001615025461
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19.5
Rider weight
Rider weight changed (eg 4kg) (Use G30 above)use G30use G3000.0009408535658
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21.11
Tyres
[Level 1] Not using MTB tyres (eg road or CX tyres)NilNil00.00101675297
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Tyres
[Level 2] Swapped to road tyres from cyclocross tyresNilNil00.0006317090409
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10.55
Tyres
[Level 3] Very best CRR road tyres vs normal road tyresNilNil00.0005140397603
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