Craftworx Ultima Carbon C38 DISC Road Bike Wheel Set - craftworxcycling

Ultima C38 | Carbon | Road Disc Wheelset | 1612g | 38mm Deep | 25mm Wide


Weight: 1612g

Craftworx Ultima Carbon C38
Disc Road Wheel Set

Everything you expect from high end carbon road wheels, but without the price tag!

Two years ago, after extensive testing and development, we released our Ultima Carbon road wheels. in January 2018, we launched the road disc models. Our customers loved the way these wheels ride, so when it came to the disc brake version, we wanted to give the same experience for

Our C38 road disc wheel set utilizes the same deisgn and technology developed for our rim brake model, then adapted and tuned for road disc.

Ultima Carbon C38 Disc 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.

Ultima Carbon C38 Disc wheels are available in standard and HD (Heavy Duty) options.


Designed, Tested & Hand Built in Australia

Need Help? Give us a call 07 3285 3858

THE ULTIMATE ALL ROUNDER FOR DISC BRAKE ROAD BIKES -The Ultima Carbon C38 Disc uses a 38mm deep Ultima carbon wheel giving you the perfect balance between low weight and aerodynamics. A versatile all rounder that perform brilliantly, whether your doing an early morning sprint session, a long weekend ride where the terrain takes you over the hills and far away, or smashing the competition in a road race, the lightweight, fast rolling C38's are perfect for the job. The 25mm wide carbon rim is perfect for running 23mm, 25mm and 28mm road tyres allowing you to fine tune ride comfort and road handling. These wheels are available in standard for riders up to 100kg's or HD (Heavy Duty) and SHD (Super Heavy Duty) versions for heavier and stronger riders.

BEST FOR CLIMBING, DESCENDING, SPRINTING AND EVERYDAY RIDING -Our C28 Disc Ultralite Carbon Wheel deep profile suits most riders in all riding conditions, with the flexibility of fine tuning comfort and control.

MORE UPGRADES, MODERN TECHNOLOGIES -Lighter Hubs featuring oversized sealed bearings for very smooth spinning wheels and excelent durability. Fast engaging 6-pawl freehub, minimal lag, super durable and excellent sound. Over the years these has been many variations in axle types used in road disc bikes. Rather than having hubdreds of hub types to suit all these variations (very expensive plus we simply don't have the room!) w ehave engineered an interchangeable end cap system where we can simply fit the correct end cap to suit your bike. This allows for less common combinations and if you upgrade your bike in the future to a bike with different axles, you can simply purchase the new end caps and take your wheels with you!

HAND BUILT BY CRAFTWORX -Producing high quality, hand built wheels is what we do and it's what makes Craftworx wheels special. Years of experience and skill goes into every wheel we build. Hand built with meticulous care and precision using processes that have been refined over the last 20+ years.

Ultima Carbon Road Disc Wheel Warranty

Hand Built wheels ride better and last longer.

Craftworx are wheel building specialists. Over time, we have perfected our wheel building craft. We have all the high tech wheel building gadgets and QC check points to ensure that every wheel we build is perfect!



Rim - Craftworx Ultima C38 Carbon Disc

Height - 38mm

External - 25mm

Internal - 18.5mm

Available in 24H, 28H and 32H Spoke Combinations

24H - Front Wheel - 747g - Rear Wheel - 865g - Wheelset - 1612g

28H - Front Wheel - 770g - Rear Wheel - 888g - Wheelset - 1658g

32H - Front Wheel - 793g - Rear Wheel - 911g - Wheelset - 1704g

Hub Model - Craftworx R36 Road Disc Hubs

Bearings - Over Sized Precision Sealed Bearings

Freehub - Shimano/Sram 10/11 speed or Campagnolo

Disc Brake Compatibility - Centrelock - (6 bolt adaptors available)

Lightweight bladed aero spokes



Suitable for tyre widths 25mm - 35mm

Rim Tapes Fitted

Warranty and Wheel Care Information

6 Bolt Disc Adaptors Availble (Additional Charge Applies)

Craftworx Carbon Technology

Next Generation Carbon Technology & Performance

Customer Reviews

Based on 16 reviews
the perfect addition for a perfect ride !

these carbon 28cm wheels just feel so good and have transformed a nice quality but fairly slow bike into a nice comfortable and responsive machine , giving superb descending skills , a zippy
and responsive ride on the flats and a definite help for this 82 year old on the hills ! wonderful service from both Nathan & Mark....great value....

Wow, awesome wheels

So I purchased these wheels as they were on sale as I just wanted a cheap set of all rounders. Well didn't I get more than I thought. Low price maybe but big $$ performance. I cannot fault these wheels. If you are thinking of getting new wheels get some of these. Thanks Craftworx.

Shut up and take my money!

I have branded Zipps and generic Chinese carbon wheelsets. I wanted a 50mm carbon clincher I can use for fast bunch rides and maybe a crit race or ITT down the line. I researched and found CraftworX online. I rang them up first and the guys were very helpful answering my questions. The Ultima C50 was on special. I bought it and it came after 5 days. Packaging is superb with complete instructions including kool stop brakepads and skewers. Premium proper packaging too.

The wheelset carbon finish is superb. Brake track is of different colour but all contoured as a whole with that U shape aero wide rim design I am looking for.

The spoke tension is just right. No pinging, no noisy flex some other handmade wheelsets have. The spokes are stiff and I couldn’t flex it.

The wheelset is light. It’s just as good as my Zipp 606 in holding speed above 30-40kph even on training Gatorskin folding tyres.

The hubs are smooth rolling. Koolstop pads are what it is. Quality. I can’t comment on the skewers as I have Ti skewers I am using.

Summary: if you are on the fence if you should buy...BUY! Buy deep, buy now!

Silky smooth, hold speed well

As great as they looked unspoiled, the time came when I had to use them. Very comfortable, smooth ride, eating up the bumps. Hold speed very well

C50 magic

Have been cogitating on carbon wheels for a while and finally took the plunge with the CW C50 Aero. Maiden test ride and they didn't fail to impress...light, fast and they look super cool. Solid as a rock and no problems braking, which was my biggest concern. Highly recommend these Oz built beauties over the pricier foreign options.

Talk to the Wheel Experts

  +61 07 3285 3858

  Unit 7, 24 Deakin Street Brendale, Queensland Australia, 4500

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