Light enough to XC Race, strong enough to take on your favourite trails day in and day out. Incorporating rim technology developed on the Enduro World Series Circuit and build around the latest generation of Chris King hubs, this wheelset gives you the ultimate balance between nimble climbing and confident descending.

Each and every WBWO wheelset is individually crafted with precision in our purpose-built workshop right here in Rotorua, New Zealand, by specialist mechanics who have worked at the highest professional levels of the sport. Our wheels have proven themselves time and time again on home soil and internationally under the most demanding elite riders. We know that after your first spin on yours, you won't want to ride anything else.

STAN'S NOTUBES - ARCH MK4 RIM

Mountain bikes have changed in the decade since the original Arch rim helped introduce the world to tubeless technology. With a 28mm wide asymmetric rim shape and ultra-strong 6069 alloy, today's Arch MK4 rim has evolved to match these more capable bikes. Through all the years of testing and refinement of this rim, one thing has never changed: versatility. Now more than ever, when you want a reliable rim that can handle every trail, the Arch MK4 is for you. The Arch MK4 rim is light enough to take XC racing but was born from research and testing on the Enduro World Series circuit, making it a great rim for anyone looking to improve both descending and climbing.

Constructed of light and strong 6069 aluminum alloy, with a reinforced spoke bed and 28mm internal width ideal for 2.2-2.5" tires, the Arch MK4 can get you up the climbs easier and make the descent even better. The Arch MK4's BST Asymmetric shape improves spoke angle, allowing for a stronger overall wheel build. Unlike most asymmetric rims that struggle with tubeless inflation and maintaining a consistent airtight seal under hard cornering, the Arch MK4's shape is designed to equalize pressure for easy inflation and incredibly strong tire retention on both sides of the rim. Stan's patented Bead Socket Technology, combined with a stronger asymmetric design, light and durable 6069 alloy, and the perfect rim width for balancing control and weight, make the Arch MK4 your best choice for all-around riding. Powering up rocky switchback climbs or slapping berms on every descent, the Arch MK4 is ready for whatever you can throw at it!

• Versatile 28mm internal rim width optimized for 2.2-2.5” tyres


• Light and durable 6069 aluminum with welded joint and reinforced spoke bed


• BST Asymmetric design combines Stan’s legendary easy tubeless inflation with a stronger, more balanced wheel build

CHRIS KING HUBS

The patented Chris King RingDrive, with 72-points of simultaneous-engagement, will get your power to the ground fast, provide unmatched engagement, and give you that legendary Chris King angry-bee sound.

Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use.

• Engineered, manufactured and assembled in Portland, Oregon USA


• King Lifetime Warranty


• Legendary made-in-house LD bearings


• Easily serviceable and completely re-buildable with our Chris King Hub Service Tool


• Responsibly lightweight


• Ceramic bearing upgrade available - please enquire

SPECIFICATIONS

RIM: Stan's Arch MK4
HUBS: Chris King
SPOKE COUNT: 32/32
DRIVER: HG, MS, XD
SPOKES: Sapim Race DB J-bend
SPACING: Boost 110X15 / 148X12