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30018-8912
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Whether you're racing a time trial or triathlon, your equipment can make the difference between 1st and 5th. And the 321 Disc will save you more time than any other wheel. There's no lighter production disc wheel on the market, and none that has less drag. In short, it's the fastest disc wheel in the known universe. Learn More
Assembly Method: Handmade
Rim Width: 19mm internal, 27.3mm external (at brake track)
Front Hub: Roval AF1/AFD1, CeramicSpeed Bearings
Rear Hub: Roval Disc 142x12, CeramicSpeed bearings, DT Swiss 240 internals, 11-speed Complete Specs
We got your back. If you're the original purchaser, your Roval wheels are warrantied for as long as you own them. If you're the subsequent owner (meaning that you're the second, or an even later, owner), then your Roval wheels are covered under warranty for two years from the date of the original retail purchase. Full Terms
![[center]](http://cdn.shopify.com/s/files/1/1342/0697/files/321-feature-1.jpg?3193428514226145348)
We used an ultra-light, single-layer of 1k carbon on each side, coming together at the brake track bridge. It delivers a supple ride and one of the lightest disc wheels available, so it'll spin-up quickly and reduce fatigue over the length of a course.
We made a revolutionary shape that, on the non-drive-side, is as aerodynamic as possible, with a drive-side shape that's as aerodynamic as the wheel-dish and derailleur clearance will allow for.
Our initial disc was so stiff that, under power, it wouldn't flex and caused brake rub. So we designed an optimal aero shape, first & foremost, and then created new stiffness targets to fit within a desirable frame stiffness. Now, it's the perfect balance.
![[center]](http://cdn.shopify.com/s/files/1/1342/0697/files/321-feature-2.jpg?3193428514226145348)
Through hours of CFD and testing in the Win Tunnel, we developed a new shape that's optimized to work with a tire for on-bike airflow. This created off-the-charts aerodynamics that are as advanced as contemporary knowledge will allow for.
To save every possible watt, we've added CeramicSpeed bearings and DT Swiss 240 hub internals.
The 321 Disc is 2Bliss Ready and comes with a padded wheel bag, tubeless valve, and valve pocket covers. Rim brake model also includes quick-release and SwissStop Black Prince brake pads.
Good news: We've partnered with STIKRD, which means that we're proud to introduce custom Roval decals. Our partnership started when we saw what these guys were doing, and how rad they were making bikes look with our wheels and custom decals. We know we're not alone in our love to make our bikes look rad, and STIKRD helps us do just that.
How does it work? Just follow the link over to STIKRD.com and select the Roval wheelset that you have. Design your own decals, and then hang tight for a couple of days while they're printed and delivered to your doorstep. It’s that easy.
Design Now
