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  • Kreitler Challenger 4.5 Rollers with Headwind Fan
  • Kreitler Challenger 4.5 Rollers with Headwind Fan Detail
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KreitlerChallenger 4.5 Rollers with Headwind Fan

Item # KRE000D

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  • One Color,One Size ($654.95)
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Item # KRE000D

Simulate cycling outdoors.

Simulate the sensation of cycling outdoors with the Kreitler Challenger 4.5 Rollers with Headwind Fan. By bundling the Killer Headwind Fan with Challenger 4.5 Rollers, you'll experience greater air resistance while training indoors, making the experience both more realistic and challenging, much like riding into a light headwind on the road.

The Killer Headwind Fan features an adjustable air inlet that opens and closes to your individual training needs. When open, the resistance is strong enough to challenge the most experienced of cyclists looking to increase their endurance. Conversely, you can close the air inlet for minimal resistance if you're seeking an easier training session. Plus, you'll find the cooling fan provides a nice breeze that works to keep you from sweating profusely, especially if you're training in a poorly ventilated garage or basement.

Kreitler's Challenger 4.5 Rollers provide the smooth-rolling ease of use and quiet operation of their premium Alloy Rollers, except they're constructed with polycarbonate end caps to reduce the overall cost. These polycarbonate end caps are a bit lighter, so they won't carry quite as much momentum as the alloy versions. Despite these differences, the Challenger 4.5 Rollers roll smoothly without creating a noisy racket, thanks to their concentric alloy drums and ABEC 5 bearings. Since they're the largest rollers available from Kreitler, you'll find they're easiest to use, without the heavy resistance of the smaller 3.0 and 2.25 versions.

  • Realistically simulate cycling outdoors with air resistance
  • Challenger 4.5 Rollers offer low resistance for easier training
  • Polycarbonate end caps make this a bit cheaper than Alloy version
  • Headwind Fan with adjustable air inlet for customizing resistance
  • Suitable for use with Kreitler's Flywheel (not included)
  • Coated steel frame for sturdiness and durability
  • Adjusts to fit wheelbases of 31.5 to 48 inches
  • Frame folds up for easier storage and travel
Tech Specs
Tech Specs
This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
[drums] alloy, [end caps] polycarbonate, [frame] powder-coated steel
Recommended Use
bike training
Manufacturer Warranty

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