Home > Bike Types > Fatbike

SOC15: Kappius goes wide, adds Boost 148 hubs & partners with Wolf Tooth Components

8
Support us! Bikerumor may earn a small commission from affiliate links in this article. Learn More

Kappius cassette with Wolf Tooth Components 42-tooth cog

Since inception, Kappius Components’ trademark feature has been their modified SRAM domed cassettes, whether for road or mountain, to fit on their oversized freehub body mechanism. When it came to XX1, that meant cutting the arms on the largest cog and fixing it to the freehub shell, which they admit reduced its stiffness and could lead to some creaking noises.

Now, they’ve partnered with Wolf Tooth Components to create a proprietary 42T cog that’s designed specifically for their hub. This method leaves a continuous ring at the center of the cog to make it much stiffer, and it’s a direct fit for their freehub.

More pics, plus a look at other new hubs and rims, below…

Kappius cassette with Wolf Tooth Components 42-tooth cog

The stock 42T cog has to be cut out to fit.

Kappius cassette with Wolf Tooth Components 42-tooth cog

This one slots directly onto their freehub body.

Kappius KR 29 XCW 46mm wide carbon fiber plus rim

Their new wide carbon hubs measure 46mm on the outside to give tires a bigger contact patch on the ground.

Kappius KR 29 XCW 46mm wide carbon fiber plus rim Kappius KR 29 XCW 46mm wide carbon fiber plus rim

As an example, they had a Maxxis Ikon 29×2.35 that measured out to 2.44″ on these new rims. The pic above shows it compared to the same tire on an original ENVE XC rim, where it measured just 2.18″. (click to enlarge image)

Kappius KR 29 XCW 46mm wide carbon fiber plus rim

Kappius boost 148 hubs with XD driver body

To go with the whole bigger-is-better theme are their new Boost 148 hubs. The rear Boost hub adds just 20g over a standard 12×142, going from 310g to 330g. Standard 10/11speed freehubs and XD Driver Body are available. Front weight is 118g for 15×100, no mention of a Boost 110mm front yet, but it’s likely coming.

Kappius fat bike hubs

If you want to go even bigger, their new fat bike hubs are available for 190mm QR or 12×197 thru axle in the rear at 360g. Both types of freehub/driver body are available. The front is 150x15mm thru axle only, weight is 147g.

KappiusComponents.com

Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

8 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
Peter
Peter
7 years ago

Supreme work by Rus et al (as always). Looking forward to trying out the new Wolf Tooth 42T ring on my KH1.

Cheers!
Peter

DonJ
DonJ
7 years ago

Under the heading of ‘reinventing the wheel’…..

Dexter
Dexter
7 years ago

The death of freehub body

Graeme Smith
Graeme Smith
7 years ago

I’m sure it works great since is is Kappius, but I don’t like the idea of proprietary cassette mounting standards…

internet stoke
internet stoke
7 years ago

The new cool thing with Boost parts is that they are heavier. Ha. Cool innovation.

I like the kappius xx1 solution

Mac
Mac
7 years ago

They have something with those rims. Still don’t get what they’re trying to sell us with the hubs.

Jeff
Jeff
7 years ago

Will there be a 27.5 version of the 46mm wide rim?

Brady Kappius
7 years ago

Jeff, we are hoping to have a 27.5″ version by late summer. Thanks, Brady Kappius – Kappius Components

Subscribe Now

Sign up to receive BikeRumor content direct to your inbox.

Subscribe Now

Sign up to receive BikeRumor content direct to your inbox.