Ultima Carbon SL38 - Rim Brake Wheels

$2,539.00 $1,777.30 Save 30% Sold out
Tax included. Shipping calculated at checkout.


    The SL38 is a true all rounder, perfectly suited for all riders and all road surface conditions. If you are looking to give your much loved rim brake bike a new lease on life, SL38 is the way to go.

    Not convinced? Don't believe us, go to the bottom of the page and see what riders who already own them have to say.

    Advanced Aerodynamics

    All of our carbon rims have been designed and tuned using high tech computer programs to create what we term "Aerodynamically Accurate" rim profiles. The deeper you go, the more aerodynamically efficient the wheels will be. How deep you go will ultimately come down to two things, looks and speed; achieving the aesthetic balance you want to create for your bike and how fast you want, or would like, to go.

    In general, we recommend SL28, SL38 and SL50 for everyday riding and suggest that SL60, SL85 and SL DISC wheels are better suited for competitive riding. It's a good rule of thumb, but in the end, the choice is yours to make.

    Performance Upgrade

    If you want to improve the way your bike rides and handles, upgrade your wheels, it will transform your ride and give it new lease on life. Most of my clients say it is like riding an new bike. Faster, improved handling and more fun to ride. But don't believe me, read the reviews, they'll tell you all you need to know.

    Rim Depth: 38mm

    Rim External Width: 27.5mm

    Rim Internal Width: Wide 21mm

    Compatible Tyre Widths: 25mm - 32mm

    Spokes: DT Aerolite  or Sapim CX-Ray Bladed

    Nipples: Secure Lock Alloy

    Weight: 1406 grams

    Supplied with: Tubeless Rim Tape and Carbon Brake Pads

    Note: QR Skewers not supplied


    Pickup currently unavailable at Craftworx

    $19.95 Shipping Australia Wide

    Customer Reviews

    Based on 34 reviews
    Light wheels, well made.

    I prefer a lower profile rim depth and these wheels are perfect. They are particularly light and ride really nicely. I'm rolling them with clinchers and they are easy to work with, look nice and were simple to set up. The service was excellent too, Mark dealt with all my picky build instructions and other questions, and delivery was quick. Very, very happy indeed.

    Jeff Collier
    Ultima are the Ultimate

    Yes I’m a man crazy about cycling and my most recent purchase from Craftworx has allowed me to fulfil a dream of one bike two sets of wheels ~ one for off road the 36 backroads and for on road the new Ultimas. After just a few rides the Ultimas have proved to be top shelf providing a smoother more comfortable and faster ride. The customer service and the great products is what keeps me coming back!

    Peter Taylor
    Another great looking set of wheels

    Bit early for a review but high expectations. This will be my second pair of Ultima hoops. Previous wheels still going well after quite a few years. The new rims mark my transition to disc brakes so can't wait to get the bike built and try out the latest set. Look great out of the box so far and expect the performance to match based on past experience.

    Pete Whiter
    Amazing wheels

    Have always wanted a proper set of carbon wheels but hard to justify the pretty steep prices. Big thanks (& congrats) to the Craftworx team for the 10th anniversary sale for the excuse to take the plunge.
    Boy I wish I'd gotten them much sooner, they are amazing in so many ways. Even in the delivery box they're lighter than my lightest current wheelset :)
    The bike is now so much more responsive, it just leaps forward and I find myself changing up to an easier gear much less often. Braking performance is remarkable, loads of modulation & power - better than my alum wheels which was a surprise.
    Most remarkable though is the increased comfort - I actually checked tyre pressures. Was not expecting that from 50mm deep aero wheels.
    Abosutely perfect build quality (of course) & always a pleasure to deal with the Craftworx crew.
    Certainly the most lavish bike purchase I've made but worth every cent.
    Thanks so much Mark & the team at Craftworx

    Juzzy F
    So Far So Brilliant!

    Very Very VERY HAPPY with these wheels even though it's earlydays. Upgrading from stock wheels on my BMC these have made a huge difference.
    Love the smooth rolling of these wheels the sound coming out of my SL38's and the look cool to! Customer service and assistance is second to none as well. Discussing with the Craftworx team prior to purchase made the decision so much easier.