The Genesis CDA 20 1x in Forest Green is the nimble, aluminium-framed sibling to the legendary Croix de Fer. Designed as a high-value "gateway" bike to the world of gravel and adventure, it swaps out the traditional steel frame for a double-butted 6061 aluminium chassis. This change significantly reduces weight and adds a level of snappy responsiveness that makes it an excellent choice for urban commuting during the week and exploring fire roads on the weekend. The Forest Green finish is a classic, outdoorsy gloss that pays homage to the bike’s rugged British heritage, looking right at home in a muddy bridleway.
For 2026, the CDA 20 1x embraces the "less is more" philosophy with a focus on mechanical simplicity and wide-range capability. It features the Microshift Advent X 10-speed drivetrain, which has gained a cult following for its robust shifting performance and massive 11-48T gear range—perfect for hauling gear up steep pitches without the complexity of a front derailleur. True to the Genesis "utility-first" ethos, the bike retains Quick Release (QR) dropouts and mechanical disc brakes, ensuring that maintenance remains straightforward for home mechanics and the bike stays compatible with a wide array of legacy touring racks and accessories.
Frameset & Geometry
Frame: ALX8 6061 Double-Butted Aluminum, Quick Release (QR), Internal Cable Routing
Fork: Chromoly Disc, Triple Anything Cage Mounts, Quick Release (QR)
Handlebar: Genesis Alloy, 16-degree flare
Stem: Genesis Alloy, +/- 7 degree
Seatpost: Genesis Alloy, 27.2mm
Saddle: Genesis Adventure
Color: Forest Green
Drivetrain & Brakes
Shifters: Microshift Advent X SB-M100A, 1x10-speed
Rear Derailleur: Microshift Advent X RD-M6205GM (with Clutch)
Crankset: Prowheel Charm, 40T Single Chainring
Cassette: Microshift CS-G104, 11-48T, 10-speed
Chain: KMC X10
Brakes: Promax DSK-717 Mechanical Disc
Rotors: 160mm CenterLock (or 6-Bolt, spec dependent)
Wheels & Tires
Wheelset: Shining DB-31, 32h, Tubeless Ready
Hubs: KT-K68, Quick Release (100mm Front / 135mm Rear)
Spokes: Steel 14g
Tires: Maxxis Rambler, 700x45c, Wire Bead
Max Tire Clearance: 700x47c (45c with mudguards)
Key Technologies
6061 Aluminum Construction: Provides a stiffer, more efficient power transfer than steel, making the bike feel faster on climbs and paved sections.
Microshift Advent X: A gravel-specific drivetrain known for its "bulletproof" reliability and a clutch system that prevents the chain from bouncing off on rough terrain.
Versatile Mounting Points: Includes mounts for three bottles, front and rear racks, and full-wrap mudguards, making it a "blank canvas" for commuting or bikepacking.
Gravel Geometry: Shares the same geometry as the Croix de Fer, offering a stable wheelbase and a comfortable, upright riding position for long-distance confidence.