Descending
53
A solid all-round descender (66.5° head angle, 140mm) — capable in the rough and steep without being an all-out bruiser.
Rotwild
R.X375 2023
Discontinued✎Full Power · TrailLegacy · 0.4/10iFreshness 0.4/10
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.
Motor
Shimano EP8 (DU-EP800) · 85Nm · 500W↗
Battery
Rotwild IPU 360Wh Carbon
Travel F/R
150/140mm
Wheels
29F / 29R✎
Frame
Full carbon✎
Weight
19.1 kg
Price
From €8,499
EMTB Forums verdict
The Rotwild R.X375 was the German marque's lightweight trail/all-mountain eMTB, billed as the 'trail king'. It paired a full-power Shimano EP8 (85 Nm) drive unit with a deliberately small, handmade carbon IPU375 battery (rated 360 Wh) to keep weight down to a claimed 19.1 kg in Ultra trim. The handmade high-modulus carbon frame ran 150 mm front and 140 mm rear on 29in wheels.
Geometry was identical across all four sizes (S to XL): a 66.5 degree head angle, 75.5 degree effective seat angle, a long 450 mm chainstay, reach from 430 to 500 mm and a constant 345 mm BB height. That is a moderate, balanced trail stance rather than an aggressive enduro number, in keeping with the bike's 'more person, less machine' pitch.
Three trims spanned a wide price range: Core at 8,499 EUR (Magura MT5 brakes, Shimano XT mechanical drivetrain, Fox 36 Performance), Pro at 9,499 EUR (Shimano XT 8120 brakes, Fox 36 Performance/Performance Elite, I9 wheels) and Ultra at 12,499 EUR (full Shimano XTR, Fox Factory Kashima suspension, Crankbrothers Synthesis Carbon wheels, Eightpins NGS 2 integrated dropper). All used the same frame, motor and battery, so the premium buys lighter, higher-end finishing kit rather than more capability.
The R.X375 is discontinued. It is a niche choice: small-battery range was always the trade-off for the low weight, and Rotwild is a EUR-native brand with no UK storefront, so pricing was only ever quoted in euros.
Geometry read
What the numbers mean on the trail
Computed from this bike's geometry, spec and build kit — reach, wheelbase, chainstay, head and seat angles, travel, motor, weight and the fork/tyre/brake spec — and worked out per size, because a fixed chainstay can make an S and an XL feel very different.
Size
Playfulness
94
Short 450mm rear and a lighter build — easy to pop, manual and throw around.
Size balance
93
Rear-long with a planted front in L (FC:RC 1.75) — easy to weight the front and quick to turn, though it can feel light at the back at real speed.
Technical climbing
75
Shimano EP8 (DU-EP800) and a steep 75.5° seat angle keep the weight planted over the front — a proper winch. 500W of peak power and 85Nm of torque — a strong full-power motor.
Easy to throw around; happiest when you're active on the bike.
The numbers are well balanced for its category.
How it stacks up vs other Full Power · Trail bikes (from 245 bikes in the database)
Weight19.1 kg3.9 kg lighter than average
Battery360 Wh344 Wh below average
Motor torque85 Nm13 Nm below average
Computed from geometry + spec, not a paid review. Scores are guidance, not gospel.
Geometry · hover a row to highlight the measurement on the bike
| S | M | L | XL | |
|---|---|---|---|---|
| Reach | 430 mm | 450 mm | 475 mm | 500 mm |
| Stack | 618 mm | 620 mm | 636 mm | 645 mm |
| Seattube | 410 mm | 440 mm | 470 mm | 506 mm |
| Chainstay | 450 mm | 450 mm | 450 mm | 450 mm |
| Headtube Angle | 66.5° | 66.5° | 66.5° | 66.5° |
| Seattube Angle (eff) | 75.5° | 75.5° | 75.5° | 75.5° |
| Wheelbase | 1184 mm | 1205 mm | 1237 mm | 1266 mm |
| Headtube | 110 mm | 110 mm | 130 mm | 140 mm |
| BB Height | 345 mm | 345 mm | 345 mm | 345 mm |
| Standover | 730 mm | 730 mm | 730 mm | 730 mm |
| Front Centre | 734 mm* | 755 mm* | 787 mm* | 816 mm* |
| FC:RC | 1.63 | 1.68 | 1.75 | 1.81 |
Trims · 3
Core €8,499 | Pro €9,499 | Ultra €12,499 | |
|---|---|---|---|
| Motor | Shimano EP8 (DU-EP800) · 85 Nm · all trims | ||
| Battery | Rotwild IPU 360Wh Carbon · 360 Wh · all trims | ||
| Travel F/R | 150/140 mm · all trims | ||
| Frame | High Modulus Carbon · all trims | ||
| Fork | Fox 36 Float Performance, 150 mm / Fit Grip 3-POS Micro Adjust / E-Tuned | Fox 36 Float Performance or Performance Elite, 150 mm / FIT4 3-POS Adjust / E-Tuned | Fox 36 Float Factory Kashima, 150 mm / Fit 4 3-POS Adjust / E-Tuned |
| Shock | Fox Float DPS Performance, 210 x 50 mm / 3-POS | Fox Float DPS Performance, 210 x 50 mm / 3-POS | Fox Float DPS Factory Kashima, 210 x 50 mm / 3-POS / EVOL / EV |
| Headset | ACROS RW375 1.5 Headset w/ Blocklock · all trims | ||
| Stem | e*thirteen Plus (35 mm / 50 mm / AL7050 I.C.R.) or ROTWILD S140 (35 mm / 50 mm / AL7075) | e*thirteen Plus (35 mm / 50 mm / AL7050 I.C.R.) or ROTWILD S140 (35 mm / 50 mm / AL7075) | ROTWILD S140, 35 mm / 50 mm / AL7075 |
| Handlebar | e*thirteen Plus (35 mm / 20 mm Rise / 780 mm / AL7050 I.C.R) or ROTWILD B280 (35 mm / 35 mm Rise / 780 mm / AL7075) | e*thirteen Plus (35 mm / 20 mm Rise / 780 mm / AL7050 I.C.R) or ROTWILD B280 (35 mm / 35 mm Rise / 780 mm / AL7075) | ROTWILD B220 Carbon, 35 mm / 15 mm Rise / 780 mm Width |
| Grips | ERGON GD10 Slim Factory Frozen · all trims | ||
| Saddle | ERGON SM10 Stealth | ERGON SM Pro or ERGON SM Comp | Ergon SM Pro |
| Seatpost | Eightpins H01, 34.9 mm / 25 mm Offset / 145 mm (S) / 160 mm (M) / 180 mm (L) / 200 mm (XL) | Eightpins H01, 34.9 mm / 25 mm Offset / 145 mm (S) / 160 mm (M) / 180 mm (L) / 200 mm (XL) | Eightpins NGS 2, 34.9 mm / 25 mm Offset / 170 mm (S) / 190 mm (M) / 210 mm (L) / 230 mm (XL) |
| Brakes | MAGURA MT5 HC-W; rotors: MAGURA MDR-P, 203 mm / 180 mm | SHIMANO XT 8120, Fin Pad; rotors: SHIMANO RT800/810, Sensor ICE 203/180 | SHIMANO XTR 9120, Fin Pad; rotors: SHIMANO RT900/910, Sensor ICE 203/180 |
| Rear derailleur | Shimano XT 8100, 12-Speed / SGS / Hyperglide+ | Shimano XT 8100, 12-Speed / SGS / Hyperglide+ | Shimano XTR 9100, 12-Speed / Hyperglide+ |
| Crank | e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide | e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide | e*thirteen Race Carbon, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide |
| Shifters | SHIMANO XT, I-Spec EV · all trims | ||
| Cassette | SHIMANO CS 6100, 10-51 t. / 12-Speed | SHIMANO CS 7100, 10-51 T. / 12-Speed | SHIMANO XTR 9100, 10-51 T. / 12-Speed |
| Chain | SHIMANO HG 7100, 12-Speed · all trims | ||
| Drivetrain | Shimano XT 8100, 12-Speed / SGS / Hyperglide+; e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide; SHIMANO XT, I-Spec EV; SHIMANO CS 6100, 10-51 t. / 12-Speed; SHIMANO HG 7100, 12-Speed | Shimano XT 8100, 12-Speed / SGS / Hyperglide+; e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide; SHIMANO XT, I-Spec EV; SHIMANO CS 7100, 10-51 T. / 12-Speed; SHIMANO HG 7100, 12-Speed | Shimano XTR 9100, 12-Speed / Hyperglide+; e*thirteen Race Carbon, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); e*thirteen Direct Mount Chainring 34 t.; e*thirteen TRS chain guide; SHIMANO XT, I-Spec EV; SHIMANO XTR 9100, 10-51 T. / 12-Speed; SHIMANO HG 7100, 12-Speed |
| Wheels | Crankbrothers Synthesis Enduro (31.5/29.5) / 110-15/148-12 TAS / 6-Bolt | Crankbrothers Synthesis Enduro I9 (31.5/29.5) / 110-15/148-12 TAS / CL | Crankbrothers Synthesis Enduro I9 Carbon (31.5/29.5) / 110-15 / 148-12 TAS / CL |
| Tyres | SCHWALBE Nobby Nic Evo, TLE / 29 x 2.4 / Super Ground / Speedgrip or Soft & Speedgrip | SCHWALBE Nobby Nic Evo, TLE / 29 x 2.4 / Super Ground / Speedgrip or Soft & Speedgrip | SCHWALBE Nobby Nic Evo, TLE / 29 x 2.4 / Super Ground / Speedgrip |
| Weight | — | — | 19.1 kg |
| Price | €8,499 | €9,499 | €12,499 |
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