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New FastFitness Shop is Open 🏬
https://www.cyclingapps.net/shop/shop-front/
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Optimal Tyre Finder
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https://youtu.be/ds8_SVjQY3g
https://youtu.be/ds8_SVjQY3g
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>> helps you find the best tyre by rolling resistance personalized to you from a list of 340 tyres <<
http://www.patreon.com/fastfitnesstips
http://www.patreon.com/fastfitnesstips
https://youtu.be/ds8_SVjQY3g
https://youtu.be/ds8_SVjQY3g
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A html version of this sheet is here
https://www.cyclingapps.net/tires/
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DATA ENTRY
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aYour Weight (including bike) >>123kgAnyAny
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123AvocettAv
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BontragerBo
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bWhat is your prefered Tyre size (C)?25
<< Select Any for more tyres
ClementCl
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Options are: Any | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 32
Wider = better grip descending
Continental
Co
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DedaDe
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cEnter Clincher or TubularClincher
<<< Also try tubular (for tubeless use text search)
FeltFe
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Hutchinson
Hu
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d
Preferred Brand? ('Any' for all options)
Vittoria
<<< Select Any for more tyres
IRCIR
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VittoriaKendaKe
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MavicMa
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e
Optionally contains the text/words..............
corsa << Text search found!MaxxisMx
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try these searches: "inflation" | "g+2" | "tubeless" | "normal" | "prix" | 4000 | 5000
MichelinMi
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PirelliPi
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ROLLING RESISTANCE RESULTS
RitcheyRi
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SchwalbeSc
25
f
Lowest CRR tyre..MATCHING text (e19) is.....
Vittoria Corsa G+ (open) (25) 2016
Specialized
Sp
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ToreliTo
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gCRR of this tyre is0.00408crrTypicalTy
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VeloflexVe
29
VittoriaVi
30
h
True tyre width of this tyre using calipers is more like
..................27.00mm
Vredestein
Vr
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ZippZi
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i
Optimal pressure of this tyre (on mixed tarmac) is about
8.5barsee
https://fft.tips/pressure
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at your weight & this tyre size
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j
Estimated Rolling Watts (for pair F+R)
..........................51.56
watts at speed of....
29.0kph
<<Enter your typical speed in kph
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on typical mixed road18.0
mph calc from above
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at your speed and weight11.7
your 50th percentile yaw @ ave speed
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k
Comparative CRR watts of Losses (vs pair of fastest tyres)
22.7w
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VS Vittoria Corsa Speed Open TLR 23C (tubeless)
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L
Absolute Watts by Specific Surface Conditions
.........................32.4smooth
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Vittoria Corsa G+ (open) (25) 201649.4rough see
https://fft.tips/surface
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59.1gravel/cobbles
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AERODYNAMIC RESULTS
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mTyre CDA (frontal area x drag)..........................0.031
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nAero Watts Loss (for pair F+R)..........................10.54
<< Estimated at speed/yaw corrected drag & 1.2Rho air density
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Extra Aero losses vs 19.0mm tyre at Zero Yaw1.91worse watts
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Aero Watts Losses vs 23.0mm tyre at Zero Yaw0.96worse watts
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EXCESS LOSSES (FRONT & REAR TYRE)
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EXCESS Watts of CRR Losses (vs the fastest clincher tyre)
22.7...per pair
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PLUS
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EXCESS Watts of AERO Losses (vs the best) (front & rear)
3.32
....per pair (At anticipated yaw )
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EQUALS
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EXCESS Watts of TOTAL Losses (vs hypothetical best)
26.06
...hmm not good for speed, try another
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raw cost was 62.1w
and wide tyre might not match well with traditional narrow rims with internal rim of <17mm
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This sheet is based on THREE large databases by Tom Anhalt & Al Morrison (BikeTechReview.com) & BicycleRollingResistance.com.
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FFT gives full original credit to these authors of this amazing work. Based on these databases we present the best knowledge possible on tyre choice as of June 2017 (see tab2)
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