Extra durable wheels for heavy descents and strong riders

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  • Custom order

Extra durable wheels for heavy descents and strong riders

This set of wheels from the Heavy Duty series is designed for extreme conditions, heavy descents and riders weighing up to 135 kg. The 20 mm high and 30 mm wide All Mountain rims provide superior strength and stability, thanks to which you can handle even the most demanding terrain. The perfect choice for those who want wheels that can withstand everything – from rocky trails to aggressive descents.

Equipped with Lefty 60 + EM 360 hubs and Sapim CX Ray spokes, this set gives high stiffness, reliability and long life. This model is a performance choice for riders looking for maximum durability without compromising on quality. Ideal for demanding training, racing and adventurous trips into difficult terrain.

Components

A29C30D20N - AM

This rim stands out for its excellent weight-to-strength ratio. In 2025, the rim already featured an innovative design, with the main improvement being the bead, which was widened from 3 mm to 3.5 mm. This makes the rim highly resistant while keeping its weight low. Thanks to its low 20 mm height, the rim also has a certain amount of flex, which ultimately contributes to its durability.

All Mountain (AM) rims are versatile, robust and designed for technically demanding trails. They offer exceptional stiffness and durability while maintaining a reasonable weight. They are the ideal choice for riders looking for all-round performance on climbs, descents and technical sections. This version of the rims has a weight limit of 120 kg.

Internal width 30
External width 37
Depth 20
Wheel size 700
Tire attachment Clincher Hookless
Symmetry asymetric
Profile smooth
Version AM

The EIE Lefty 2.0 front hub is designed exclusively for the Cannondale Lefty 2.0 and Lefty Ocho forks, where it ensures maximum rigidity, precision and reliability. Thanks to precise CNC machining from high-quality aluminum alloy, it offers low weight while maintaining exceptional strength. The hub is equipped with high-quality bearings that guarantee smooth operation and long service life even under intensive use in racing conditions. The hub design respects the specific mounting of Lefty forks and allows easy installation of a 6-hole (IS) disc. The ideal choice for building light and stiff XC or marathon bikes with a Lefty fork.

Number of spokes 28
Axle Lefty 2.0
Spoke attachment Straightpull
Disc attachment IS 6 děr
Series Lefty 2.0

The EIE EM 360 MTB hub is a great choice for cyclists looking for a reliable and durable hub for their mountain bike. This hub is based on the proven DT Swiss 350 design, including a ratchet system and end caps that ensure long life and smooth operation.

The EIE EM 360 hub uses straightpull spoke mounting, which ensures increased stiffness and stability of the wheel. It is equipped with an IS 6-hole disc mount, which provides a traditional and reliable six-hole disc mount. The hub is designed for BOOST 12/148 mm solid axles.

The EIE EM 360 hub offers high performance and reliability, making it an ideal choice for MTB riders looking for a durable and efficient component for their bike. With these hubs, you will get a quality and long-term reliable basis for your mountain trips and races.

Number of spokes 28
Axle 12x148
Spoke attachment Straightpull
Disc attachment IS 6 děr
Series EM 360

Sapim CX-Ray are among the lightest and strongest spokes on the market, making them an ideal choice for both racing and performance bikes. Their unique profile with a flattened center section significantly reduces aerodynamic drag without sacrificing strength or durability.

They are made from premium stainless steel, which provides excellent fatigue resistance. Despite their extremely low weight, CX-Rays maintain high tensile strength and torsional resistance, which contributes to the stiffness and long life of the spoke.

Compatible with most standard nipples and hubs, they are suitable for a wide range of applications – from road and triathlon bikes to MTB and gravel wheels. If you are looking for the best balance between weight, aerodynamics and reliability, Sapim CX-Ray is the clear choice.

Hub mount Straightpull

Sapim Alu Double Square Secure Lock are top-of-the-line aluminum nipples designed for maximum spoke strength and stability. Thanks to their special double square profile design, they allow for more accurate centering and even distribution of spoke tension, which contributes to a longer wheel life.

The patented Secure Lock system prevents nipples from loosening spontaneously, helping to maintain spoke tension even under extreme loads. The low weight of the aluminum alloy contributes to the overall reduction of the bike's weight, which will be especially appreciated by racers and performance-oriented riders.

Thanks to their precise processing and high corrosion resistance, Sapim Alu Double Square Secure Lock nipples are an ideal choice for road, gravel and MTB bikes, where the emphasis is on low weight, strength and reliability of the spoke.

Type Standard

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