Why are deeper wheels faster?

On an elementary level, the deeper your rim's profile is the more aerodynamic it will be. To create a deep section wheel requires a bit more carbon-fibre material. This will increase its weight, but research has proven that over most racing and training distances, the reduction in drag offsets any increase in mass.
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Are deeper wheels faster?

As cyclists, we know that deep aero wheels are usually faster than lighter, shallower wheels when riding on flat roads. And we know that when climbing very steep roads, lighter wheels will be faster than deeper wheels.
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Why deep rims are faster?

Deep section wheels are more aerodynamic than standard box-section road bike wheels. In simple terms, this will make you faster for the same amount of effort. As well as making you faster, there is not a road bike out that doesn't look cooler with aero wheels.
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Are deep rims better?

Normally deep-section rims come out on the fast, flat stages, while shallower lightweight rims get bolted on for the mountains. Most efficient on the level, and of greater benefit when riding alone or in a smaller group, a set of conspicuously deep rims can even signal a rider fancies getting in the break.
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Are deep section wheels stronger?

The reason a deep section wheel is helpful is that the deeper cross section is much stiffer, i.e. harder to deflect, than a rim with a shallow depth. The strongest, most durable wheels have deep section rims, lots of spokes (think 32 and up) along with a well designed hub.
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How Much Faster Are Aero Wheels?



Will lighter wheels make me faster?

“Light weight wheels accelerate faster than heavy ones, which helps when you're taking off from a stop, but heavy wheels maintain more of their momentum than light wheels, which helps you keep your speed on rolling roads and trails.
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What depth rims do pros use?

Rim depth is broadly speaking a trade off between weight and flat speed. Shallow 25 – 40mm Can be lighter, great for hill climbing and accelerating. Mid depth 40 – 60mm – Is often the best all-round option – relatively light for climbing, whilst still fast on the flat – best of both worlds.
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Does rim depth matter?

The stability of a wheel is affected primarily by rim depth and profile. The deeper the rim profile, the more aerodynamic the wheel will be, however, the trade-off is that the deeper the profile, the more it will be subject to getting knocked around by crosswinds.
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Are 50mm wheels worth it?

50 hold speed better. If you live in a pretty windy place, the 50mm could prove to be a bit much to handle in any sort of cross winds. But the differences are small between these two rims. Rim / wheel stiffness / spoke count & tension/air pressure/rider weight & rider skill does effect ride quality also.
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Why are aero wheels faster?

Aero wheels do this by smoothing out the eddy currents, allowing the wheels to effectively “knife” more quietly through the air. They create less drag turbulence. Ideal aero wheels get better at this as they spin faster.
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How much faster are Zipp wheels?

From his tests, the rider discovers: With conventional wheels, he can ride 20 minutes at an average speed of 41.12 kph with an average power of 379 watts. With the Zipp 808 NSW aero wheels he rides 51 minutes at an average speed of 41.13 kph and average power of 344 watts.
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What size wheels do pro cyclists use?

Rims used by professional cyclists for races have been getting wider, because tires in the 23- to 28-millimeter range are universally adopted over the traditional 21-millimeter racing tire. Wider tires have a reduced rolling resistance, better shock absorption and receive fewer pinch flats.
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Are carbon wheels faster?

At any level it really should be something that riders consider seriously. After interviewing a few friends, colleagues, and even some amateurs in the college racing scene, I am here to inform you that yes, every single one of them said carbon is faster, more responsive, and better in every way compared to alloy rims.
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How much time do aero wheels save?

The time savings for good aero wheels are significant, according to Barry's research on the SystemSix and its new Knot64 aero wheels. Even on an aero road bike, the addition of aero wheels saved 48 seconds over a 40K TT at 300 watts compared to a typical 30mm-depth alloy training wheel set.
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How much faster is an aero bike?

With an aero bike, you'll simply be able to go faster than you would with a non-aero bike. The 150-Watt rider riding during a windy day now finishes 6.5 minutes faster on an aero bike (8.4 minutes with no drafting) and is 83.3 seconds per hour faster (93.6 seconds with no drafting).
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What are aero wheels?

Aero bike wheels look fast, ride fast, and race fast. At 55mm to 65mm deep, they are the wheels of choice for most flat and rolling terrain for those who ride at average speeds well above 20mph/32kph. They are well suited for road races and crits, and can also work as time trial and triathlon wheels.
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What wheels do pro triathletes use?

Best triathlon and time trial wheels
  • Zipp 454 NSW. A unique way to deal with crosswinds. ...
  • Roval CLX 64. ...
  • Enve SES 7.8. ...
  • Hunt 48 Limitless Aero Disc. ...
  • DT Swiss ARC 1100 Dicut 80. ...
  • Vision Metron 3 Spoke Front & Disc Rear. ...
  • HED Vanquish RC8 Pro & RCD Pro. ...
  • Cadex 4 Spoke Aero & Cadex Aero Disc.
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What is high profile wheelset?

High profile rims (from 40 to 60mm) – They produce the highest speed for riding on the road because they cut the wind with ease. They are the most suitable for flat terrain which is where aerodynamics has the most influence.
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Do race wheels make a difference?

The answer is yes. Race wheels have a deeper dish rim which is going to be more aerodynamic. The deeper the rim, the more aerodynamic the wheel. Race wheels are also typically lighter than your traditional road wheels.
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What size wheels do riders in Tour de France use?

The rules of the Union Cycliste Internationale (UCI) indicate that any wheel can be used during cycling competitions, provided: the wheel's diameter is between 70cm and 55cm, including the tyre.
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