Signature 38 Ride Review:
Real-World Enduro Carbon Wheel Test
Ride Review:
Signature 38 Carbon Enduro Wheelset
Words By: Matthew Tongue
I had noticeably more control with the Signature 38s. I could point the front end and trust it to stay on line, with far less feedback coming back through the bike.
10/10 on the new Signature 38.
Wheels are one of those components that can quietly shape how a bike feels without ever drawing attention to themselves. For me, reliable wheels are as important as the correct suspension set up or a cockpit that feels natural. Over time, and after trying a lot of different set-ups, I’ve really started to dial in what works for me and what doesn’t.
SignAture 38 wheelset
Enduro | Gravity | eMTB
Price range: USD $670.00 through USD $1,499.00
Depth: 19.5mm | Inner Width: 30.0mm | Wheelset Weight: 1914g
A new, shallower, 38
Rim design & First ride
When NOBL reached out to me last fall and said they’d been working on a new iteration of the 38, I was pretty keen to get my hands on a set for my Transition Patrol. The TR38 is a wheel that I’ve had a lot of experience with in the past, and one that I’ve thoroughly enjoyed finding the limits of.
Visually, the new Signature 38 has a few changes. A much shallower rim profile was the first I noticed, along with a refresh on the rim graphics. Fitting and seating tires was no issue whatsoever, with the wheels coming taped and valved, ready for tubeless – something I’ve always appreciated from NOBL.
First Ride Impressions on the Trail
The increase in compliance is especially noticeable in corners.
From the start, the general ride feel has been excellent. With the older version, I found that small mistakes in line choice or body position could cause the wheel to feel overly stiff and stand you up mid-corner.
With this setup, there’s more forgiveness, and the wheels allow for a looser, more playful riding style, which suits how I like to ride. The increase in compliance is especially noticeable in corners.
Compliance vs Stiffness: What Changed From the TR38
I had noticeably more control with the Signature 38s.
On top of improved handling when cornering, the biggest difference I noticed was in rough, chundery terrain. There’s a lot of janky rock where I ride with sharp edges that are just waiting to deflect your front wheel. I clipped a few rocks hard enough that I expected to see some damage, but aside from a couple of surface scratches, the rims held up without issue.
Compared to the previous version of the 38, I had noticeably more control with the Signature 38s. I could point the front end and trust it to stay on line, with far less feedback coming back through the bike.
How the Signature 38 Handles Rough Terrain
They never gave me a reason to back off: no dings, no concerning noises, and no loss of confidence.
My first proper ride test came in Oaxaca (aside from a couple very wet Pemberton laps), which turned out to be a perfect place to get a real feel for how they handled across a wide range of conditions and terrain. Over ten days of riding in Oaxaca, I experimented with a range of tire pressures, running them as low as 20 psi in the front and 22 psi in the rear.
I was deliberately loading the wheels into edges and rough sections, trying to find their limit, and they never gave me a reason to back off: no dings, no concerning noises, and no loss of confidence.
Durability After 40+ Days of Riding
From there, I went straight to New Zealand, turning south when the weather did in the PNW. By that point, I’d logged roughly 40 days on them, enough to burn through 2 rear tires. Spoke tension has remained consistent, and they’re still running true, just as they were on day one. They’ve transitioned from feeling like “test wheels” to simply feeling like my normal setup, which is usually the best sign things are working as intended.
Final Verdict: Is the Signature 38 Worth It?
Thanks NOBL: 10/10 on the new Signature 38.
- Much shallower profile
- Noticeably more control than previous version
- No rim issues throughout test
- Tension remained consistent
- More control + less terrain feedback
- Increased compliance noticeable in corners
- Improved handling in rough sections
- Able to run low tire pressures
SignAture 38 wheelset
Enduro | Gravity | eMTB
Depth: 19.5mm | Inner Width: 30.0mm | Wheelset Weight: 1914g
Take on everything. Trusted by riders like Mark Matthews and Remy Métailler, the Signature 38 delivers a rare mix of category-leading impact strength and tuned compliance, letting you stay committed when the trail gets rowdy.
NOBL Signature 38 FAQ
How strong are Signature 38 carbon wheels?
The NOBL Signature 38 carbon wheels are among the strongest wheels NOBL has produced. They are 17% stronger than the previous TR38, using an updated carbon construction with wider rim lips that more effectively dissipate impact energy.
In lab testing, the Signature 38 rims have been tested to over 185 joules of impact force, demonstrating exceptional durability for aggressive riding conditions. Like all NOBL rims, the Signature 38 uses NOBL’s proprietary flexible material in the bead construction, which improves impact resistance, especially during off-axis impacts, where many wheels typically fail.
Are NOBL Signature 38 wheels good for enduro riding?
Yes, the NOBL Signature 38 was specifically designed for enduro, gravity, and eMTB riding.
Built for demanding terrain and high-speed impacts, the Signature 38 offers exceptional reliability and durability, allowing riders to stay focused on the trail without worrying about wheel performance. Whether racing enduro stages or riding technical terrain, these wheels are designed to handle repeated impacts while maintaining consistent performance.
How does the Signature 38 compare to aluminum wheels?
The NOBL Signature 38 carbon wheels deliver a more responsive and refined ride feel compared to comparable aluminum wheels.
Carbon fiber allows the rim to be compliant through rough terrain, while still providing strong support during aggressive riding. When pushing hard into corners, carbon wheels provide a supportive, poppy, and lively feel, helping maintain momentum and carry speed through technical sections.
Aluminum wheels remain a reliable option, but they typically feel slightly more muted in comparison. Carbon wheels like the Signature 38 also tend to stay true longer, reducing the need for frequent truing and minimizing downtime. Backed by NOBL’s lifetime warranty, the Signature 38 is built for long-term durability and performance.
Are compliant carbon wheels better than stiff ones?
Compliant carbon wheels, like the NOBL Signature 38, offer several advantages, especially in rough and technical terrain.
A shallower, more compliant rim profile improves tracking and stability on uneven or off-camber trails. Instead of deflecting off rocks and roots, the wheel absorbs impacts more effectively, making it easier to hold your line and maintain control.
For many riders, compliant wheels increase confidence by reducing harsh feedback and improving traction across unpredictable terrain.
