Designed in Montréal by Atelier Olympia, the MONDIAL frame is built from butted steel and modern standards to create a durable, versatile platform. It can be built as a full steel touring or commuting bike, or configured with a carbon fork for a lighter, faster gravel setup. One frame, multiple lives.
Designed for:
Daily commuting and year-round use
Long-distance touring and bikepacking
Gravel riding and mixed-terrain exploration
Riders who want one bike instead of many
Design principles
Durability first
Butted steel for strength, repairability, and long service life.
Modern standards
Compatibility with current and future components.
Maximum adaptability
Mounts, clearance, and geometry designed to evolve.
Accessible by design
No proprietary parts, no dead-end standards.
Highlights:
Frame highlights
Butted steel frame
Steel or carbon fork compatibility
Extensive mounting points for racks, fenders, and bottles
27.5” and 29” wheel compatibility
Dropper post compatible (27.2)
External cable routing
UDH derailleur hanger
Thru-axles and flat-mount brakes
Specifications
Frame Material
Triple-Butted 4130 Steel
BB Shell
BSA 68mm
Seatpost Clamp Dia.
29.8mm
Seatpost Dia.
27.2mm
Seatpost Types
Rigid or Dropper Post Compatible
Derailleur Hanger
UDH
Cable Management
External
Wheel Size / Approx. Clearance
700 x ~45c / 650B x 2.25
Hub Spacing
12 x 100 / 12 x 142 Thru Axle
Thru Axles
12x125x1.5 / 163x12x1.5
Brake Caliper Type
Flat Mount
Weight (with 3-piece steel fork)
~3500g 48cm (practically bombproof)
Headtube
44mm ID
Eyelets
14 on fork, 8 on rear triangle
Top tube, seat tube, down tube, under down tube
Extra 90 degree rotated on seatstays for alternative rack mounts (Nitto-style)
