RotwildYear not documented
R.EX / R.EX900
The carbon R.EX combines a removable 864 Wh battery with 160/150 mm travel and a mixed-wheel layout. Official pages distinguish M1.24 builds from the newer M2 Core and M2S Pro/Ultra builds.
Colours
Manufacturer colour illustration. Equipment, model year and frame size shown may differ from the selected configuration.
Sources checked: 25 October 2026
CORE M1.24
Selected size: L
864 Wh
M1
- Reach (mm)
- 487
- Stack (mm)
- 642
Motor, frame and suspension
- Motor
- Avinox M1
- Motor power (W)
- Unknown
- Motor torque (Nm)
- Unknown
- Battery
- 864 Wh
- Removable battery
- Yes
- Frame material
- Carbon
- Wheel setup
- Mullet / mixed wheels
- Front travel (mm)
- 160
- Rear travel (mm)
- 150
- Weight (kg)
- 22.8
Figures are manufacturer claims, not independent measurements. Unknown values are never substituted with zero.
Refer to the linked manufacturer source for operating and measurement conditions.
Build sources: ROTWILD
Components
- Fork
- FOX 36 Float Performance GRIP 160 mm
- Rear shock
- FOX Float X Performance 185 x 55 mm
- Brakes
- Magura MT5 HC-W
- Drivetrain
- Shimano XT M8100 SGS Hyperglide+
- Wheels
- Crankbrothers Synthesis Enduro
- Tires
- Schwalbe Albert Evo Trail Soft 29 x 2.5 / 27.5 x 2.5
Build sources: ROTWILD
Geometry by size
Geometry setup conditions are not fully documented. Do not assume these figures apply to other configurations.
Select a size heading or any value in its column to update the configuration and size-specific details.
Bike geometry illustrated
The redrawn reference shows markers A–O. Focus or point to a measurement in the legend to highlight its marker.
- 487 mm
- 642 mm
- Not documented
- Not documented
- Not documented
- 1,273 mm
- 439 mm
- 28 mm
- 337 mm
- 621 mm
- 64 °
- Not documented
- Not documented
- 78 °
- 475 mm
This redraw illustrates measurement locations, not the selected bike's frame or proportions. The values alongside are documented for the selected size. Unavailable measurements remain undocumented. Fork length is not suspension travel.
Live size comparison
Change the selected size here or above to update the overlay and values. The reference size stays fixed until you change it.
Reference: M (faded)Selected: L (full opacity)
Both layers use the same transparent reference artwork, aligned at the bottom bracket. Each is scaled horizontally by its published reach and vertically by its stack. This illustrates reach and stack differences only: wheelbase, angles, wheels and frame shapes are not reconstructed. Use the documented values and deltas below for all other measurements. This is not a fit prediction.
At least one geometry setup is undocumented; direct comparability is uncertain.
- Reach (mm)
- 487 mmΔ +25 mm
- Stack (mm)
- 642 mmΔ +4 mm
- Front center (mm)
- Not documentedΔ Not documented
- Wheelbase (mm)
- 1,273 mmΔ +27 mm
- Chainstay (mm)
- 439 mmΔ 0 mm
- BB drop (mm)
- 28 mmΔ 0 mm
- BB height (mm)
- 337 mmΔ 0 mm
- Effective top tube (mm)
- 621 mmΔ +25 mm
- Head angle (°)
- 64 °Δ 0 °
- Effective seat angle (°)
- 78 °Δ 0 °
- Seat tube (mm)
- 475 mmΔ +30 mm
Each Δ column compares that size with the first size shown, not the currently selected size. Changing build can change the reference size. Deltas are numerical only; size labels, setup and measurement conditions must be considered.
| Measurement | M | L | Δ vs M | XL | Δ vs M |
|---|---|---|---|---|---|
| Reach (mm) | 462 | 487 | +25 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. | 512 | +50 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. |
| Stack (mm) | 638 | 642 | +4 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. | 651 | +13 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. |
| Head angle (°) | 64 | 64 | 64 | ||
| Effective seat angle (°) | 78 | 78 | 78 | ||
| Chainstay (mm) | 439 | 439 | 439 | ||
| Wheelbase (mm) | 1,246 | 1,273 | +27 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. | 1,303 | +57 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. |
| BB height (mm) | 337 | 337 | 337 | ||
| BB drop (mm) | 28 | 28 | 28 | ||
| Seat tube (mm) | 445 | 475 | +30 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. | 511 | +66 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. |
| Effective top tube (mm) | 596 | 621 | +25 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. | 648 | +52 mmComparison caveatSetup or measurement conditions differ or are undocumented. This is an arithmetic difference, not a controlled comparison. |
| Front center (mm) | Unknown | Unknown | Unknown | Unknown | Unknown |
Manufacturer height guide
No manufacturer height range is recorded for this size.
Height guidance is a starting point. Rider proportions, setup and preferences also matter; this is not a fit guarantee.
Price observations
€8,990.00
Current observed priceDE25 October 2026
ROTWILD
Prices are in euros for the stated build, market and date. A conversion is an estimate, not a local retail price. Historical observations are not current offers. Confirm taxes, fees and final price with the seller.
Availability
Current stock and delivery availability are not verified. Check with the manufacturer.
Intended use and assessment
All-Mountain
No sourced strengths or trade-off assessment is recorded. Specifications alone do not establish how a bike will ride.