Plus Sized Rims for Plus Sized Tires.

The Magna is specifically made for plus tires in the 2.8-3.0” range

With a 40mm internal width, the Magna 40 is designed to suite wider plus tires between 2.8 and 3.0”. The Magna 40 features a thick bead wall adjacent the tire to resist impact deformation, with a wider, rounded top-edge to reduce sidewall cuts. The nipple/spoke bed is oriented to the spoke direction to reduce weakness caused by bend in the spoke at the nipple hole. The Magna is made with premium alloy, extruded and carefully formed for consistent shape. It is then fusion welded and ground for a strong precise finish. Our fusion welding system leaves a perfect seamless joint that becomes the strongest section of the rim ensuring that your rim won’t split if you impact at the seam.

*Chromag wheelsets are only available with Chromag complete bikes. Chromag rims are available at your local bike shop.


Internally braced

The BA30 extrusion profile is designed with an internal bracing, giving this model added support and stiffness to perform in high Energy situations.

Premium extruded alloy

We’ve chosen our alloy for a measured balance between compliance and durability. Not everyone does this but it makes a big difference, both in the lifespan and performance of the wheel.

Fusion welded-ground seam

We use a fusion weld process to join the seam which creates a joint stronger than any other section of the rim. The rim surface is ground for a seamless finsh which is precise and consistent overall.

Robust beadwall edge

It adds a couple grams but its worth it. All of our rims feature a beadwall that is about double the width of most of our competitors. The outside edge has an extra large radius to reduce cuts from sidewall impacts.

Directionally oriented nipple bed

We’ve designed the rim bed with an angle to match the spoke direction. This reduces spoke bend at the nipple and the end of the threads which is known to be a common breaking point at the spoke.


MaterialFinishProfileTubelessWeight Build Specs
Premium extruded alloy Fusion welded seam-ground finish Impact resistant design Tubeless Ready 26+: TBA
27.5+: 570g
29: 610g
27.5" ERD: 566mm