Special Articles

Special Article: Continental Grand Prix 5000 S TR Hooked Vs Hookless Rims
Published: 2022-05-06 | Jarno Bierman
Grand Prix 5000 S TR 28, 30, and 32 mm on hooked and hookless rims. Read Article

Special Article: CRR at Different Loads
Published: 2022-04-22 | Jarno Bierman
Examining load dependence of rolling resistance. Read Article

Special Article: Continental Grand Prix 5000 S TR Tubeless Vs Tubes
Published: 2022-03-25 | Jarno Bierman
Grand Prix 5000 S TR tubeless and with latex, butyl, and TPU inner tubes. Read Article

Special Article: Continental Grand Prix 5000 S TR Comparison
Published: 2022-03-11 | Jarno Bierman
Full comparison of the 25, 28, 30, and 32 mm versions of the Grand Prix 5000 S TR. Read Article

Special Article: Top 3 Fastest Tubeless Vs Latex (and Butyl)
Published: 2022-02-25 | Jarno Bierman
Top 3 fastest tubeless road bike tires: tubeless, with a latex tube, and with a butyl tube. Read Article

Pro - Special Article: Rene Herse Casing Comparison
Published: 2022-01-27 | Jarno Bierman
Snoqualmie Pass Extra Light, Standard, Endurance, and Endurance Plus Compared. Read Article

Special Article: CRR at Different Speeds
Published: 2022-01-07 | Jarno Bierman
Examining speed dependence of rolling resistance. Read Article

Special Article: Introducing Grip Testing
Published: 2021-11-26 | Jarno Bierman
Understanding our static grip test. Read Article

Road Bike Special: Continental Grand Prix 5000 Endurance Test
Update: 2021-11-19 | Published: 2019-07-12 | Jarno Bierman
Endurance test of a pair of Grand Prix 5000 with measurements every 620 miles / 1000 km. Read Article

Special Article: Vittoria Air-Liner Road Test
Published: 2021-11-05 | Jarno Bierman
Rolling resistance of the Vittoria Air-Liner Road tire insert Read Article

Pro - Special Article: Panaracer GravelKing TLC Comparison
Published: 2021-10-22 | Jarno Bierman
Panaracer GravelKing TLC 32, 35, and 40 mm compared. Read Article

Special Article: TPU Inner Tubes Test
Published: 2021-09-24 | Jarno Bierman
Tubolito, Revoloop, Wolfpack, Aerothan, FOSS, compared to butyl, light butyl, and latex inner tubes. Read Article

Special Article: The Rim Width Test
Published: 2021-02-12 | Jarno Bierman
Road bike, CX/gravel, and MTB tires on 18, 22, and 26 mm rims. Read Article

Special Article: Tubolito Rolling Resistance Tests
Published: 2020-05-01 | Jarno Bierman
We tested the Tubolito tubes against a selection of other tubes. Read Article

Road Bike Special: The Best Road Bike Tires
Published: 2020-04-17 | Jarno Bierman
A simple overview of our most recommended road bike tires. Read Article

Road Bike Special: Continental Grand Prix 5000 Comparison
Published: 2019-02-19 | Jarno Bierman
Comparison between a 23, 25, 28, and 32 mm Continental Grand Prix 5000. Read Article

Road Bike Special: Worn vs New Grand Prix 4000S II
Published: 2018-6-12 | Jarno Bierman
Comparison between a new and a worn Continental Grand Prix 4000S II. Read Article

Fat Bike Special: Tubeless vs Inner Tubes Comparison
Published: 2015-10-31 | Jarno Bierman
Rolling resistance comparison of tubeless and tubed fat bike tires. Read Article

Tour/E-Bike Special: Schwalbe Marathon 32, 37, 40, 47 Compared
Published: 2015-12-04 | Jarno Bierman
Rolling resistance comparison between a 32, 37, 40 and 47 mm Schwalbe Marathon. Read Article

Road Bike Special: Continental GP4000S II Comparison - 23, 25, 28 mm Compared
Published: 2015-02-26 | Jarno Bierman
Rolling resistance comparison between a 23, 25 and 28 mm GP4000S II. Read Article

Road Bike Special: Tubeless Vs Latex, Light, and Standard Inner Tubes
Published: 2014-11-24 | Jarno Bierman
The complete guide: Tubeless vs light tubes vs latex tubes vs standard tubes. Read Article

MTB Special: Tubeless vs Latex Tube vs Butyl Tube. A Rolling Resistance Comparison
Published: 2014-07-25 | Jarno Bierman
All you need to know about the rolling resistance of inner tubes and tubeless setups. Read Article

Road Bike Special: The Effect of Tubeless Sealant on Rolling Resistance
Published: 2014-10-15 | Jarno Bierman
How much does adding tubeless sealant to road bike tires influence rolling resistance? Read Article

Road Bike Special: Panaracer R'Air Inner Tube
Published: 2015-01-02 | Jarno Bierman
Rolling resistance of a Panaracer R'Air inner tube and other inner tubes. Read Article