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  • Ibis S35 27.5in Boost Wheelset
  • Ibis S35 27.5in Boost Wheelset Detail
  • Ibis S35 27.5in Boost Wheelset Rear
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IbisS35 27.5in Boost Wheelset

Item # IBSB04W

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  • Black, 15x110/12x148, HG ($498.95)
  • Black, 15x110/12x148, XD ($498.95)
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Item # IBSB04W

S35 27.5in Boost Wheelset

Rim profiles in the 30 - 36mm internal width range have pretty much become the standard for trail riding and enduro applications, especially as riders continue to opt for wider tires that boost traction and confidence in technical terrain. These wider rims are necessary to give proper support to the tire, which in turn allows riders to run lower pressures without drastically increasing the risk of flats. Ibis was one of the first manufacturers to offer rim widths in the mid 30-millimeter range, well before tire companies had even fully caught on. Their proven design has become a favorite among riders, but as a company that always strives for improvement, they've recently updated their esteemed line of mountain bike wheels to make them even more resistant to impacts while at the same time improving the ride quality. Featuring durable aluminum construction that lets Ibis offer them at a budget-friendly price point, the S35 27.5in Boost Wheelset is a great choice for riders seeking enduro-worthy strength that won't break the bank.

When Ibis set out to improve upon their previous wheels, one of the main goals was to make them even lighter and stronger, which was no easy task. To achieve this Ibis knew they had to reduce the height of their beadwalls in order to make them less likely to bend and break. Stan's NoTubes already uses this technology in their existing rims, so Ibis collaborated with them to use their patented Bead Socket Technology (BST), which not only reduces the beadwall heights for improved vertical compliance, impact resistance, and ride quality, but also makes it easier to mount tires and provides a more secure tubeless setup. Additionally, the S35 rims are drilled asymmetrically, which improves the bracing angle of the spokes and allows both sides of the wheel have nearly equal spoke tension, resulting in a stronger and more durable wheelset that requires less truing.

  • Ibis updates their aluminum wheels to be even stronger and lighter
  • Stan's BST technology improves ride quality and impact resistance
  • Asymmetric rim allows equal spoke tension for greater durability
  • Wide rim profile lets you run lower pressures without flatting
  • 35mm internal width gives optimal support to 2.3 - 2.8in tires
  • Ibis Logo hubs are reliable and help keep the cost down
  • No proprietary parts means it's easy to find replacements in a pinch
Tech Specs
Tech Specs
Rim Material
Wheel Size
Tire Type
tubeless ready
Rim Width
[internal] 35mm, [external] 41mm
Brake Compatibility
6-bolt disc
Ibis Logo
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Sapim D-Light double butted
Spoke Count
32 / 32
Recommended Use
enduro, trail
Manufacturer Warranty
7 years

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