PRODUCT DETAILS
The CORE Ultra 6 Carbon Disc Wheelset was engineered to be the fastest UCI-compliant 65mm wheelset available. At just 1,468g, it combines a deep aerodynamic profile with low rotational mass, reducing inertia and delivering a clear speed advantage whenever the power goes on.
Designed and hand-built at our operations centre, the CORE Ultra uses an optimised carbon lay-up with tactical placement of T1100 fibres from South Korea, combined with Taiwanese ceramic bearings and Italian-made steel spokes. The CORE Ultra is our performance wheel range, proven to be amongst the fastest available, with data captured at the Silverstone Sports Engineering Hub wind tunnel.
See RESULTS HERE.
EVERY WATT COUNTS
Aerodynamics is in our DNA. Our previous-generation wheels set a highly competitive benchmark, and our CORE Ultra 6 has been proven in the wind tunnel to outperform some of the world’s fastest wheels.
Want to see the wind-tunnel results?
By harnessing what we've learnt since launch, our Ultra Wheelsets focus primarily on an impressive weight reduction in which the carbon material and resin utilisation has been optimised whilst the integrity of rim remains uncompromised alongside the aerodynamic advantage they offer. Click HERE to see the WIND-TUNNEL results.
SPECIFICATION
The CORE Ultra 6's wide internal 24mm profile lets you run wider tyres for greater cornering stability and faster rolling, especially when tubeless. Centrelock disc comes as standard.
CORE Ultra 6 Specification Table
| SPECIFIC | HEADING 2 |
|---|---|
| Depth | 65mm |
| Material | Full, Unidirectional T1100 Carbon |
| Type | Clincher - Tubeless Ready (Hooked Rim Design) |
| Rim Width (INT) | 24mm |
| Rim Width (EXT) | 32mm |
| Spoke Type | Stainless Steel |
| Spoke Pattern | Front 1:1/24H Rear 1:1/24H |
| Weight | 1,486g |
| Weight Limit (Rider+Bike+Kit) | Total combined weight limit is 120kg |
| Tyre Recommendation | 28 - 35mm (Optimised for 28mm) |
Ultralight Carbon Rims
Built on several years of development and the success of legacy designs, the new ULTRA light carbon rim utilises modern aerodynamic geometry that complements the use of large volume road tires for maximum efficiency, speed and stability.
Want to know more?
- The integration of higher modulus fibres, including T1000/T1100, strategically laid up to optimise the weight, strength and ride feel.
- High filament Toray fibres
- Tubeless-ready (Clincher) design to capitalise on the fastest tire options available
- Ramped rim bed for easy tyre fitment
- Bead lock design for secure tire binding, even at lower pressure
- Front: 24mm INT / 32mm EXT
- Rear: 24mm INT / 32mm EXT
Check out our Naturally NACA Blog to know more about wheel system aerodynamics.
Spokes & Nipples
Equipped with Alpina Ultralite Aero spokes from Italy & a patented hidden alloy nipple design. They are high in strength & designed to be reliable yet performance-driven.
Want to know more?
J-bend Hub for increased strength
High-strength stainless steel
24 hole front/24 hole rear
Symmetrical Design
SUPERIOR HUB TECHNOLOGY
Featuring a lightweight, efficient and responsive aerodynamic J-bend hub design, the Ultra CORE hub is equipped with a double-disc ratchet drive hub system and comes with high precision Taiwanese TPI Ceramic (Grade 3) Bearings.
Want to know more?
- J-bend hub design for increased Aerodynamics
- Centre lock disc fitment
- Shimano HG/HG+, Campagnolo & SRAM XDR compatible
- Standard Road Disc (12x142)
SUPPORT / AFTER-CARE
As cyclists ourselves, we know what it's like to have a warranty issue & we'll support customers in every way possible to make sure your wheels keep turning. We have an experienced warranty team in place to deal with all warranty claims and these go straight to escalation to make sure cases are resolved at the earliest possible date.
WARRANTY / LIFETIME CRASH REPLACEMENT
When you purchase any New Scribe wheelset, you automatically join our INFINITY programme which is in place to cover your wheels should you have any unexpected issues. Click here to find out more!
FREQUENTLY ASKED QUESTIONS
Why do Ultra Wheelsets cost more?
At Scribe, we’ve always prided ourselves on delivering world-class performance without the world-class markup. The new Ultra Range doesn’t change that philosophy but it does represent a new tier of engineering, materials, and performance that simply wasn’t possible at previous price points.
Read More HERE
Where are Scribe Wheels built?
ALL wheels under the Scribe domain are 100% hand-built by our master wheel technicians directly from our operations in Belfast, Northern Ireland.
We work with the best cycling manufactuers across the globe in the pursuit of offering our riders the fastest wheels possible with exceptional QC standards. As such, our supply chain is extremely unique. The carbon-fibre & bearings comes from Japan, the grease comes from Germany, and our hubs come from Taiwan.
We never hold back.
How do I quieten my Scribe Wheels?
Most love the buzz but while we understand our hub designs may be slightly noisier than others. This is actually recognised as a sign of positive engagement. However, everyone within the Scribe Collective is different. So, if you're interested in dampening our freehub buzz, the tone can be muted by applying some of our exclusive MV1 Ratchet Grease
For a detailed walkthrough please see our video How To: Quieten Your Hubs & Freehub Removal
How long does shipping & delivery take?
Subject to stock levels & cleared payment, we can guarantee dispatch for wheel orders within 1-3 working days. For additional information on your delivery please see our Shipping & Delivery Policy Page.
*Please note that orders with tyre-fitting & decal changes may take an additional 2-4 working days to process.
The pre-order date has changed since my purchase, does this affect my order?
Our wheels are in constant demand & because of this demand, we ocassionally sell through one or even two batches of stock at a time!
*However, unless otherwise stated or contacted by our team. The pre-order ETA you were given alongside your order should remain unaffected. If you have any additional worries, don't hesitate to contact us.













