Craftworx Ultima 38 Aero SL Carbon Road Wheelset - Craftworx Cycling

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Ultima C38 Aero - Premium Carbon Road Bike Wheels

Designed for riders looking for lightweight carbon wheels with an aerodynamic advantage

Ultima Carbon C38 wheels are an extremely versatile all round performer. Fast up the hills and quick to accelerate and noticeably smoother on rough road surfaces.

The aerodynamic shape enables them to hold speed with less effort. From weekend warriors to serious athletes, the Ultima C38's tick all the boxes.

A specially developed braking system developed for our Craftworx Carbon wheels gives loads stopping power in any conditions.

The 25mm wide carbon rim is perfect for running 23mm, 25mm and 28mm road tyres allowing you to fine tune ride comfort and handling.

This wheel set is ideal for riders between 60 and 100kg

SRAM XDR 12 Speed Now Available

Configure here

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.

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

Configure your Ultima Carbon 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



*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