Noctiluxx wrote: ↑Sat Oct 05, 2019 1:28 pm
Does anyone know the rolling resistance (watts) difference between a gravel tires and high performance road tire? I ride Panaracer GK SK43mm on my gravel bike and 25mm Conti 5000 TL on my road bikes.
https://www.roadbike.de/rennrad-parts/1 ... n-im-test/
(on Schwalbe's roller - same size as BRR's, but they use more load) - note 40c G-One Speed uses the 100kg load build, the 30c using the 75kg build
For 40c gravel TL @ 50psi / 3.5 bar (avg two tests - Schwalbe and Conti drum tests)
Challenge Gravel Grinder TLR - 25.9w
Continental Terra Speed TR - 22.1w
Goodyear Connector Ultimate - 27.2w
Mavic Yksion Allroad XL - 33.6w
Maxxis Rambler Exo TR - 26.5w
Michelin Power Gravel - 26.3w
Panaracer Gravelking SK TLC - 26.9w
Schwalbe G-One Bite TLE - 28.2w
Specialized Pathfinder Pro 2Bliss ready 25.2
Teravail Cannonball 25.7
WTB Riddler 28.7w
Just the Schwalbe roller:
25c One TL 25c @ 7bar - 14.5w with tube at 8bar - 17.1w
G-One Speed 40c (100kg load casing) - 22.2
G-One Allaround 40c (70kg load casing) - 21.3
G-One Bite 40c (100kg load casing) - 24.6
G-One TerraBite 40c (100kg load casing) - 23.8
From this and using BRR's test (giving us the deltas) to fill in the holes as they are nearly the same test on the same equipment.
TT tire @ 100psi - ~10.5w
Top End Road (Pro One TLE) @ 100psi - ~13.5w
High End Road (One TL V-guard) @ 100psi - 14.5w
High End Road (One TL V-guard) @ 60psi - 17W
Fat road / Skinny gravel (G-one Speed 30-35c w/ road casing) @ 60psi ~ 19W
40C Highend Tire (G-One AllA) @ 50psi - 21.3w
In general:
Gravel knobs only add 1-2w
Heartier sidewalls add 2-3w
Lower pressures cost 3-4w
Thicker primary rubber costs 3w (TT -> everyday use)
A tube costs 1w (race latex) - 3w (std); TL goo costs ~2.5w