RotwildR.X375 Ultra
- Motor
- Shimano EP885 Nm
- Battery
- 360 WhIPU375 Carbon
- Travel F / R
- 150 / 140 mm
- Wheels
- 29"
- Frame
- Carbon
- Weight
- 19.1 kgManufacturer figure (size M)
Overview
The Rotwild R.X375 Ultra (€8,990) is the top build of the R.X375: Shimano EP8 (85 Nm) with 360 Wh, FOX 36 Float Factory Kashima fork, FOX Float DPS Factory Kashima shock, SHIMANO XTR 9100 SGS and SHIMANO XTR 9120 brakes. Claimed weight is 19.1 kg.
The R.X375 is Rotwild's light carbon all-mountain e-MTB: a Shimano EP8 motor (85 Nm) paired with the compact, removable IPU375 battery (360 Wh, 1.9 kg, carbon housing), with carbon linkage and shock yoke.
It runs 29-inch wheels with a 150 mm fork and 140 mm of rear travel. It comes in S to XL; claimed weights range from 19.1 kg (Ultra) to 19.8 kg (Core).
- Shimano EP8, 85 Nm
- 360 Wh removable battery, 1.9 kg
- 150 / 140 mm travel, 29" wheels
- From 19.1 kg claimed
Gallery
Photos: Rotwild
Full specifications
Frame & suspension
- Sizes
- S, M, L, XL
- Frame
- High Modulus Carbon, Carbon Linkage
- Rear shock
- FOX Float DPS Factory Kashima, 210 x 50 mm / 3-Pos Adjust
- Headset
- ACROS RW375 1.5
- Fork
- FOX 36 Float Factory Kashima, 150 mm / Fit4 / 3-Pos Adjust
- Colour
- RED METALLIC
- Max. system weight
- ASTM4 - 130 kg
E-system
- Display
- SHIMANO EM800
- Motor
- SHIMANO EP8, 85 Nm / max. 500 W
- Battery
- IPU375 Carbon, 360 Wh / 36 V / 21.700 Cell / 2.000 g / QR-Button
- Charger
- ROTWILD - 4.5 A
Drivetrain
- Crankset
- e*thirteen Race Carbon, 165 mm (S, M, L) / 170 mm (XL)
- Chainring
- e*thirteen Direct Mount Chainring, 34 T.
- Chain guide
- e*thirteen TRS
- Shifter
- SHIMANO XTR 9100, I-Spec EV
- Rear derailleur
- SHIMANO XTR 9100 SGS, 12-Speed / Hyperglide +
- Chain
- SHIMANO HG 7100, 12-Speed
- Cassette
- SHIMANO CS 9100, 10-51 T. / 12-Speed
Brakes
- Front brake
- SHIMANO XTR 9120, Fin Pad
- Front rotor
- SHIMANO RT-MT900, ICE / 203 mm
- Rear brake
- SHIMANO XTR 9120, Fin Pad
- Rear rotor
- SHIMANO RT-MT910, ICE / 180 mm
Wheels & tyres
- Front Wheel
- CRANKBROTHERS Synthesis Enduro I9 Carbon, 29" / 31.5 mm / 110-15 mm / Centerlock
- Rear Wheel
- CRANKBROTHERS Synthesis Enduro I9 Carbon, 29" / 29.5 mm Width / 148-12 mm / Centerlock
- Front tyre
- SCHWALBE Nobby Nic Evo, Super Ground / Soft / TLE / 29x2.4
- Rear tyre
- SCHWALBE Nobby Nic Evo, Super Ground / Speedgrip / TLE / 29x2.4
Cockpit
- Handlebar
- e*thirteen Race Carbon, ∅ 35 mm / 20 mm Rise / 780 mm Width / Carbon
- Stem
- e*thirteen Plus 35, 50 mm Length / AL7050
- Seatpost
- 8PINS NGS 2, Ø34.9 mm / 25 mm Offset / 170 mm (S) / 190 mm (M) / 210 mm (L) / 230 mm (XL)
- Saddle
- ERGON SM Pro
- Grips
- ERGON GD10, Slim Factory Frozen
Other
- Weight
- 19.1 kg (size M)
Manufacturer specification — source. Specs and prices can change; check with the brand or your dealer.
R.X375 geometry
| Size | S | M | L | XL |
|---|---|---|---|---|
| ASeat Tube Length | 410 mm | 440 mm | 470 mm | 506 mm |
| BTop Tube Length | 590 mm | 610 mm | 640 mm | 667 mm |
| CHead Tube Length | 110 mm | 110 mm | 130 mm | 140 mm |
| DChain Stay Length | 450 mm | 450 mm | 450 mm | 450 mm |
| EBB Height | 345 mm | 345 mm | 345 mm | 345 mm |
| FBB Drop | 30 mm | 30 mm | 30 mm | 30 mm |
| GHead Tube Angle | 66.5° | 66.5° | 66.5° | 66.5° |
| HSeat Tube Angle | 75.5° | 75.5° | 75.5° | 75.5° |
| IReach | 430 mm | 450 mm | 475 mm | 500 mm |
| JStack | 618 mm | 620 mm | 636 mm | 645 mm |
| KWheel Base | 1184 mm | 1205 mm | 1237 mm | 1266 mm |
| LStandover | 730 mm | 730 mm | 730 mm | 730 mm |
Source: Rotwild.
R.X375: builds compared
R.X375 range →| R.X375 Core | R.X375 Pro | R.X375 Ultra | |
|---|---|---|---|
| Price | €6,490 | €7,490 | €8,990 |
| Frame | Carbon | Carbon | Carbon |
| Fork | FOX 36 Float Performance, 150 mm / Fit Grip 3-POS Micro Adjust/ E-Tuned | FOX 36 Float Performance Elite, 150 mm / Fit4 / 3-Pos Adjust | FOX 36 Float Factory Kashima, 150 mm / Fit4 / 3-Pos Adjust |
| Shock | FOX Float DPS Performance | FOX Float DPS Performance | FOX Float DPS Factory Kashima |
| Derailleur | SHIMANO XT 8100 | SHIMANO XT 8100 | SHIMANO XTR 9100 SGS |
| Brakes | MAGURA MT5 | SHIMANO XT 8120 | SHIMANO XTR 9120 |
| Wheels | CRANKBROTHERS Synthesis Enduro | CRANKBROTHERS Synthesis Enduro I9 | CRANKBROTHERS Synthesis Enduro I9 Carbon |
| Display | SHIMANO EM800 | SHIMANO EM800 | SHIMANO EM800 |
| Weight | 19.8 kg | 19.5 kg | 19.1 kg |
R.X375 Ultra: FAQ
How much does the Rotwild R.X375 Ultra cost?
€8,990 (MSRP Germany, VAT incl.). The R.X375 range runs from €6,490 (R.X375 Core) to €8,990 (R.X375 Ultra). Prices vary by country and dealer.
How much does the Rotwild R.X375 Ultra weigh?
Rotwild quotes 19.1 kg. It is the lightest build of the R.X375.
What motor and battery does the Rotwild R.X375 Ultra have?
Shimano EP8 (85 Nm). 360 Wh battery — iPU375 Carbon.
How much suspension travel does the Rotwild R.X375 Ultra have?
150 mm at the fork and 140 mm at the rear, on 29" wheels.
What sizes does the Rotwild R.X375 Ultra come in?
S, M, L, XL. Check the geometry table to compare reach and stack between sizes.
What is the difference between the R.X375 Ultra and the R.X375 Pro?
They share the R.X375 frame platform and motor; the differences are in the parts — fork: FOX 36 Float Factory Kashima vs FOX 36 Float Performance Elite; shock: FOX Float DPS Factory Kashima vs FOX Float DPS Performance; derailleur: SHIMANO XTR 9100 SGS vs SHIMANO XT 8100; brakes: SHIMANO XTR 9120 vs SHIMANO XT 8120; claimed weight: 19.1 kg vs 19.5 kg; price: €8,990 vs €7,490.
