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an html web version of this sheet is now available here:
https://www.cyclingapps.net/tires/
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Optimal Tyre Finder (n=340!)
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>> helps you find the best tyre by rolling resistance personalized to you from a list of 340 tyres <<
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https://youtu.be/ds8_SVjQY3ghttps://youtu.be/ds8_SVjQY3g
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>> remember that grip & comfort are improved by lower pressures typically seen in wider tyres <<
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DATA ENTRY
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aYour Weight (including bike) >>95kg
Quick LBS to KG Converter
AnyAny
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95175LbsAvocettAv
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isBontragerBo
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bWhat is your prefered Tyre size (C)?25
<< Select Any for more tyres
79.3786kgsClementCl
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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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dPreferred Brand? ('Any' for all options)Continental
<<< Select Any for more tyres
IRCIR
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KendaKe
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MavicMa
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e
Optionally contains the text/words..............
5000
<< 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.....
Continental Grand Prix 5000 TL (25) 2018
Specialized
Sp
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ToreliTo
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gCRR of this tyre is0.00252crrTypicalTy
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VeloflexVe
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VittoriaVi
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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
6.5barsee
https://fft.tips/pressure
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at your weight & this tyre size
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jEstimated Rolling Watts (for pair F+R)..........................23.7
watts at speed of....
28kph
<<Enter your typical speed in kph
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on typical mixed road17.4
mph calc from above
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at your speed and weight11.9
your 50th percentile yaw @ ave speed
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k
Comparative CRR watts of Losses (vs pair of fastest tyres)
2.3w
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VS Vittoria Corsa Speed Open TLR 23C (tubeless)
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LAbsolute Watts by Specific Surface Conditions.........................12.8smooth
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Continental Grand Prix 5000 TL (25) 201825.5rough see
https://fft.tips/surface
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32.8gravel/cobbles
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AERODYNAMIC RESULTS (WITH A WHEEL LIKE THE ZIPP 404)
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mTyre CDA (frontal area x drag)..........................0.034
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nAero Watts Loss (for pair F+R)..........................9.9
<< Estimated at speed/yaw corrected drag & 1.2Rho air density
53.7
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Extra Aero losses vs 19.0mm tyre at Zero Yaw1.78worse watts
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Aero Watts Losses vs 23.0mm tyre at Zero Yaw0.90worse watts
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EXCESS LOSSES (FRONT & REAR TYRE)
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EXCESS Watts of CRR Losses (vs the fastest clincher tyre)
2.3...per pair
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PLUS
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EXCESS Watts of AERO Losses (vs the best) (front & rear)
3.11
....per pair (At anticipated yaw )
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EQUALS
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EXCESS Watts of TOTAL Losses (vs hypothetical best)
5.37
...near perfect choice!
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raw cost was 33.6w
and wide tyre might not match well with traditional narrow rims with internal rim of <20mm
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This XLS 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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