Which is faster, 25c or 28c?
Here’s what this means for TT and tri: If your bike, and your wheel, is optimized for a 25c tire your fastest tire is probably that size. If your wheel and, ideally, the bike the wheel goes into is optimized for a 28c tire then the fastest tire is 28c. Choose 28mm if you value comfort, ride on rougher roads, go on long-distance rides, or want lower rolling resistance on varied terrain.Speed: There’s a trade-off between comfort and speed when choosing tire size. Narrower tires like 28mm can be faster but may not provide the same level of comfort as wider options like 32mm. Think about where you want to strike that balance.
What are the benefits of 28mm tyres?
Further benefits The benefits certainly outweigh the negatives, with wider tyres offering more comfort, especially important for sportive riders and long distance cyclists where prolonged road jarring can cause pain and premature soreness in the contact areas. As mentioned above, wider tires usually increase fuel consumption. So, what about narrower tires? Narrower tires have a smaller contact patch, leading to less friction and lower rolling resistance with the road. The slimmer shape and less weight also help reduce wind resistance while driving.Larger tires tend to weigh more and may increase rolling resistance, so your engine must work harder to turn them. As a result, your fuel efficiency can drop.Wider tyres, however, have a larger contact patch with the road, which increases rolling resistance and aerodynamic drag. This extra resistance means the engine has to work harder, consuming more fuel.Do Wider Tires Ride Better? Wider tires perform better on dry surfaces. Dry grip and performance are generated with the footprint’s road surface contact. Since wide tires provide a larger road contact area, they are able to significantly improve its handling and maneuvering, even during their high speed applications.
Are 30mm tires faster than 28mm?
Aerodynamic Drag In testing: 28mm tyres were ~1W faster than 30mm at 45km/h. W more drag than 25mm. But that drag penalty disappeared on rough roads, where wider tyres rolled faster and more efficiently. Larger, heavier tyres increase rolling resistance, meaning your engine has to work harder to maintain speed. This directly translates to lower fuel efficiency, leading to increased fuel consumption and higher running costs. The difference can be substantial, especially with significantly larger tyres.
What is the best rim width for 28mm tyres?
Optimised Rim Widths Their research shows that: For 25 – 28mm tires, inner rim widths of 20 – 22mm are optimal. For 30 – 32mm tires, inner rim widths of 24mm provide the best results. It has often been said that to have good cycling wheel performance, there is a rule that the external rim width of a wheel should be at least 105% of the width of the tyre, or that there is a simple relationship/formula that will predict the aerodynamic performance of a wheel based on rim width vs tyre width.If you’re changing tire sizes and wondering, “what is the tire 3% rule? A change greater than 3% in overall tire diameter can affect speed, handling, braking, shifting accuracy, and even frame clearance.
Do pro cyclists use 28mm tyres?
Time was, only a few years ago, that pros raced on tubular tyres at around 23mm wide, pumped up to 100psi or more (that’s over 7 bar). But now, even in races on tarmac, it’s typical to see riders on 28mm or wider tyres, which are likely to measure up even wider on modern wide aero rims. The Rule of 105 states that the rim must be at least 105% the width of the tire if you have any chance of re-capturing airflow from the tire and controlling it or smoothing it. One of the most interesting aspects of the Rule of 105 is that before 2001, nobody was tunnel testing with 21 or 23mm tires.