Skip to content

Terra Labs. Ultra X 50

by Terra Labs.

Price: £795.00
Select Hub

Ultra X 50 — Engineered for Speed, Stability, and Durability

The Ultra X 50 is the ultimate all-terrain performance wheelset, designed for riders who demand aerodynamic efficiency, durability and control across every surface — from smooth tarmac to rugged gravel.

At its core is a hooked carbon rim with a 32mm internal width, purpose-built to support larger tire formats from 2.0 to 2.25 inches. This wide stance enhances stability by reducing tire deflection and increasing air volume, allowing lower pressures for improved traction, comfort, and confidence on any terrain.

The 41mm external rim profile delivers a proven aerodynamic advantage, promoting smoother air attachment and reduced drag, so you can maintain speed and efficiency even in challenging wind conditions.

New to the Ultra X 50 is a bead lock system that simplifies tubeless setup, ensuring a secure, airtight seal whether you’re fitting tires in your workshop or trailside. This system enhances reliability and minimizes burping, giving riders peace of mind on every ride.

Every element of the Ultra X 50 is built for strength and longevity. A reinforced nipple bed allows for higher spoke tension, increasing stiffness and durability under demanding loads. High-quality Bladed Pillar spokes deliver precise handling, efficient power transfer, and lasting performance.

Constructed from T700 high-modulus carbon fiber, the Ultra X 50 balances lateral stiffness with vertical compliance, maintaining comfort without compromising responsiveness. Lightweight, robust, and aerodynamically refined — the Terra Labs Ultra X 50 sets a new benchmark for modern endurance and gravel performance.

TIRE COMPATIBILITY
700*44C-70C



Features
  • Fast and robust gravel wheel, features tubeless and hooked rim profile
  • Ultra-wide internal profile for decreased rolling resistance, ability to run pressures under 30psi (2.1 bars)
  • Wide and deep profile integrates seamlessly with gravel tires to increase aerodynamic efficiency
  • Applies Terra Labs. Dynamic Ride Balance to high-performance gravel
  • High quality ratchet hubs with Center locking interface XDR or SRAM/Shimano driver bodies
  • Max tire pressure 70 psi/4.8 bar


WARRANTY

Terra Labs. offer a full 2 year warranty on all components (hubs, spokes, nipples, rims) for manufacturing defects. 


Specifications

Size (wheels) 700c
Rim construction Carbon – Hooked
Tire compatibility 700 x 44c-70c w/ tube or sealant
Rim depth 50mm
Brake compatibility Disc (Center Lock)
Rim - inside width 32mm
Rim profile Symmetrical
Rim finish UD fiber, permanent decals
Hub 124h ratchet, straight pull
Driver body type n/a, SRAM XDR, SRAM/Shimano Road
Bearings Cartridge - Stainless Steel
Max tire pressure 70psi
Max recommended system weight 120kg/265lb
Spoke Length DS n/a
Spoke Length NDS n/a
Max outside width 40mm
Weight (g) 1619
Weight Based On Estimated lightest weight for wheelset configuration: 12mm through axles and XDR body. Tape and valve included in weight.
Go to top