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| Frame | Gravel / Bikepacking Ready |
| Wheel Size | 700c |
The Croix de Fer 20 is the most popular model in the Croix de Fer range from Genesis Bikes.
It is designed as a versatile gravel platform, suitable for daily riding, mixed-surface use and multi-day touring.
The frame and fork are built from Genesis Mjolnir chromoly steel, combined with practical features such as mudguard and rack mounts, generous tyre clearance, dynamo cable routing and multiple cage mounting options.
Genesis Mjolnir Chromoly frame
Amplitude G100 Chromoly fork
Shimano GRX / Tiagra 2x10 drivetrain
TRP Spyre mechanical disc brakes
700c wheelset
Mounts for mudguards, racks and dynamo wiring
Tubeless-ready rims, pre-taped
The Croix de Fer 20 is designed as a gravel all-round bike, suitable for:
daily commuting
mixed road and gravel riding
touring and bike travel with luggage
Frame: Genesis Mjolnir Chromoly Tubing
Fork: Amplitude G100 Chromoly
Groupset: Shimano GRX RX600 / RX400 & Tiagra 4700
Speeds: 2×10
Chainrings: 46/30T
Cassette: 11–34T
Brakes: TRP Spyre mechanical disc brakes
Rotors: 160 mm front / rear
Wheelset: Amplitude G100
Rotor mount: 6-bolt
Axles: QR front & rear
Rims: tubeless ready, pre-taped
Tubeless valves: included
Tyres: Maxxis Rambler 700×45 mm Tubeless Ready
Finishing kit: Amplitude G100
Saddle: Madison Flux Switch
XS: 156–164 cm
S: 164–172 cm
M: 172–180 cm
L: 178–186 cm
XL: 186–194 cm
These indications are general and should be considered together with riding style and intended use. Size consultation is available.
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Effective Reach | 465 | 475 | 485 | 495 | 505 |
| Seat Tube | 470 | 490 | 530 | 560 | 590 |
| Top Tube | 553 | 557 | 558 | 574 | 589 |
| Reach | 395 | 395 | 385 | 395 | 405 |
| Stack | 552 | 566 | 585 | 604 | 623 |
| Head Tube | 100 | 115 | 135 | 155 | 175 |
| Head Angle | 71 | 71 | 71 | 71 | 71 |
| Seat Angle | 74 | 74 | 73.5 | 73.5 | 73.5 |
| Chainstay | 435 | 435 | 435 | 435 | 435 |
| BB Drop | 73 | 73 | 73 | 73 | 73 |
| Wheelbase | 1042 | 1046 | 1043 | 1059 | 1076 |
| Fork Offset | 50 | 50 | 50 | 50 | 50 |
| Standover | 741 | 759 | 785 | 809 | 833 |
| Stem Length | 70 | 80 | 100 | 100 | 100 |
| Handlebar Width | 420 | 440 | 440 | 460 | 460 |
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