A balanced upgrade — designed to do most things well, without excess.
 
Not every wheelset needs to chase extremes.
The Marvel 50D II is built around consistency — dependable performance across varied terrain, without demanding attention.
With a 50mm rim depth, it delivers aerodynamic efficiency on faster roads while remaining manageable in changing conditions. Wider internal and external rim dimensions support modern tyre sizes, improving grip, comfort, and overall ride stability. 
The second-generation design focuses on durability and responsiveness — reducing unnecessary material while strengthening the structure where it matters. The result is a wheelset that feels composed under effort, predictable in crosswinds, and reliable over longer distances. 
This is not a statement upgrade.
It’s a considered one.
 
Key Features
50mm carbon rim profile — balanced aerodynamics and everyday usability
Wider rim platform — improved tyre support, comfort and traction
Alpina ultralight aero spokes — responsive and durable construction 
S&S ceramic bearings — smooth rolling efficiency 
Tubeless ready — adaptable for road and mixed surfaces
Disc brake (Centerlock) — consistent braking performance
ETRTO-compliant hook design — improved ride feel and tyre integration 
 
Specifications
Wheel Size: 700c
Rim Depth: 50mm
Internal Width: 23mm 
External Width: 31mm 
Material: Carbon fibre
Spokes: Alpina Ultralite Aero (21 front / 24 rear) 
Hub: 4-pawl system
Freehub Body: Shimano 11/12 speed and Sram 11 speed
Bearings: S&S ceramic 
Brake Type: Disc (Centerlock)
Axle: 12x100 (front) / 12x142 (rear) 
Tyre Compatibility: Clincher / Tubeless
Recommended Tyre Size: 28–30c 
Weight: ~1500g (pair) 
Rider Weight Limit: ~120kg 
 
What It’s For
Riders looking for a dependable carbon upgrade that improves how the bike feels without complicating it.
Long rides, varied terrain, everyday use — a wheelset that stays consistent rather than demanding attention.
 
Availability
Available through Machine.
Fitting and setup carried out in-house.