Craftworx Ultima C50 Aero SL Carbon Road Wheels - Craftworx Cycling

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Ultima C50 Aero SL Carbon Road Bike Wheelset | 1423g*

Looking to go faster?  Then look no further.

At 1455 grams, the Craftworx Ultima Aero SL is the new standard for speed on two wheels. Weʼve distilled the very essence of riding fast into pure carbon fiber pleasure without making a single compromise on stiffness or durability.

Whether youʼre a budding amateur, a hardened rouleur, or a rider with a deep affinity for all-day soul rides in the mountains, the Ultima Aero SL is built to deliver effortless aerodynamics and best-in-class power transfer.
The 50mm deep wheel generates and maintains airflow attachment, reducing drag and thereby keeping your speeds higher for longer.

With low weight, and bomber durability, the Ultima C50 Aero SL achieves a rare trifecta of qualities that admit them to the hallowed pantheon of truly versatile wheelsets. Climb, descend, or prowl the flats with confidence knowing that youʼre ready for whatever the road can throw at you.

SRAM XDR Now Available

Configure & BUY

The Craftworx Standard

Wondering how we achieve such a high standard? We do it one handbuilt wheel at a time in our Brisbane workshop. Our craft is building the best wheelsets available anywhere. Everything we create is built to meticulous standards that are constantly improved through marginal gains. With an industry-leading quality control practice in place, we are on the never-ending quest for wheel-building perfection.


The Ultima Aero SL carbon wheelset is equally at home racing UCI calendar bikes races and local after work group rides. Thatʼs because weʼve built them to the discerning standards of professionals like world-class triathlete Emma Jackson, who rode our Ultima Carbon wheels to two World Cup race podiums.

With invaluable feedback like hers, weʼve conclusively built the Ultima Aero SL wheelset to manufacturing standards that meet and exceed UCI testing requirements.



Our proprietary braking system resists heat build up.

Ultima Aero SL carbon wheels resist heat build up when youʼre flying downhill and apply the brakes.

Regardless of conditions, the Ultima Aero SL stop on a dime. Weʼve specially developed our proprietary carbon rim and brake pad system so that, when paired, create the perfect match.

Real Life Testing Conditions

Over a four-month training period in the Alps, world cup triathlete Emma Jackson barely scratched the surface of her Ultima Aero SL wheelset. All told, brake pad wear came in at a mere 55%, and there was zero wear on the carbon rims.

Ultima C50 Aero SL | Carbon Road Wheels | 1455g | 50mm Deep | 25mm Wide

Configure your Ultima road bike wheels by selecting from the options below. If you need help with this, give our wheel experts a call, we're here to help! Need Help?

Call the Wheel Experts : 0411 310 132



Customer Reviews

Based on 1 review Write a review

*Wheelset weights will vary based on the configuration chosen.

Customer Reviews

Based on 22 reviews

Ultima 38 Aero SL | Carbon Road Wheels | 1375g | 38mm Deep | 25mm Wide

No excuses

I don't have any excuses any more, these wheels are light and stiff and roll true and forever. Its now down to my legs! Great to see a local wheel builder doing good things. Highly recommend buying direct rather than via numerous middlemen, result being the consumer ends up paying margin on margin.

Aero SL Carbon 38/50

Awesome set of wheels, buy right, buy local you won’t be disappointed.

Amazing in every aspect

Having had a discussion with Nathan it was established that the C28’s would be the most suitable Wheelset for my needs, and I am very pleased with the quality and performance. Remarkable build quality!

New wheels

Absolutely brilliant, smooth ride, really accelerate up hill, superb on corrugated dirt roads, great service