A solid all-round descender (65.5° head angle, 144mm) — capable in the rough and steep without being an all-out bruiser.
R.X735 2023
How current the bike is — newer chassis, motor and battery score higher. 10 = brand-new, 0 = legacy.

The Rotwild R.X735 is the German marque's full-power all-mountain eMTB on the IPU735 carbon platform, built around a handmade high-modulus carbon frame with 150 mm front and 144 mm rear travel on 29in wheels. A Shimano EP801 motor (85 Nm) is fed by the quick-release Rotwild IPU735 720 Wh carbon-housed battery, and the geometry is contemporary all-mountain: 65.5 degree head angle, 75 degree seat angle, 450 mm chainstays across all four sizes, and reach growing 430 to 500 mm from S to XL.
Three trims were offered. The Core (EUR 7,999) pairs Fox Performance suspension with Magura MT5 brakes and a mechanical Shimano XT drivetrain, claimed at 22.8 kg in size L. The Pro (EUR 9,499) steps up to a Fox 36 Performance Elite fork and Shimano XT Di2 electronic shifting. The Ultra (EUR 12,499) is the showpiece, with Kashima-coated Fox Factory suspension, Shimano XTR brakes, XTR cassette and carbon e*thirteen finishing kit, with a quoted weight of 21.2 kg.
This is a EUR-native range with no UK storefront, so pricing stays in euros. It is discontinued: the R.X735 nameplate continued into later model years with updated specs, so this 2023 build is no longer current.
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.
Short 450mm rear and a lighter build — easy to pop, manual and throw around.
Rear-long with a planted front in L (FC:RC 1.78) — easy to weight the front and quick to turn, though it can feel light at the back at real speed.
Shimano EP801 and a steep 75° seat angle keep the weight planted over the front — a proper winch. 600W 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 248 bikes in the database)
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 | 625 mm | 625 mm | 643 mm | 652 mm |
| Seattube | 410 mm | 440 mm | 470 mm | 506 mm |
| Chainstay | 450 mm | 450 mm | 450 mm | 450 mm |
| Headtube Angle | 65.5° | 65.5° | 65.5° | 65.5° |
| Seattube Angle (eff) | 75° | 75° | 75° | 75° |
| Wheelbase | 1200 mm | 1219 mm | 1253 mm | 1282 mm |
| Headtube | 110 mm | 110 mm | 130 mm | 140 mm |
| BB Height | 345 mm | 345 mm | 345 mm | 345 mm |
| Standover | 729 mm | 729 mm | 729 mm | 729 mm |
| Front Centre | 750 mm* | 769 mm* | 803 mm* | 832 mm* |
| FC:RC | 1.67 | 1.71 | 1.78 | 1.85 |
Trims · 3
Core €7,999 | Pro €9,499 | Ultra €12,499 | |
|---|---|---|---|
| Motor | Shimano EP801 · 85 Nm · all trims | ||
| Battery | Rotwild IPU 720Wh · 720 Wh · all trims | ||
| Travel F/R | 150/144 mm · all trims | ||
| Frame | Full carbon (handmade high-modulus carbon fibre) · all trims | ||
| 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 Micro Adjust / E-Tuned | FOX 36 Float Factory Kashima, 150 mm / Fit 4 3-POS Adjust / E-Tuned |
| Shock | FOX Float X Performance, 210 x 52.5 mm / 3-Pos. Adjust | Fox Float X Performance, 210 x 52.5 mm / 3-Pos. adjust | FOX Float X Factory Kashima, 210 x 52.5 mm / 3-Pos Adjust |
| Headset | ACROS RW735 1.5 | ACROS RW735 1.5 Headset W/ Blocklock (Size S) | ACROS RW735 1.5 Headset W/ Blocklock (Size S) |
| Stem | e*thirteen Plus, O35 mm / 50 mm / AL7050 I.C.R. · all trims | ||
| Handlebar | e*thirteen Plus, O35 mm / 20 mm Rise / 780 mm Width / AL7050 I.C.R | e*thirteen Plus, O35 mm / 20 mm Rise / 780 mm Width / AL7050 I.C.R | e*thirteen Race Carbon, O35 mm / 20 mm Rise / 780 mm Width / I.C.R |
| Grips | ERGON GD10 Slim Factory Frozen | Ergon GD10 Slim | ERGON GD10 Slim Factory Frozen |
| Saddle | ERGON SM SPORT | ERGON SM COMP | ERGON SM30 PRO / ERGON SM Pro |
| Seatpost | 8PINS H01, O34.9 mm / 25 mm Offset / 145 mm (S) / 160 mm (M) / 180 mm (L) / 200 mm (XL) | Eightpins H01, O34.9 mm / 25 mm Offset / 145 mm (S) / 160 mm (M) / 180 mm (L) / 200 mm (XL) | 8PINS NGS 2, O34.9 mm / 25 mm Offset / 170 mm (S) / 190 mm (M) / 210 mm (L) / 230 mm (XL) |
| Brakes | MAGURA MT5 HC-W (front) / MAGURA MT5 Shiftmix (rear) | SHIMANO XT 8120 Fin Pad | SHIMANO XTR 9120 Fin Pad |
| Rear derailleur | SHIMANO XT 8100, 12-Speed / SGS / Hyperglide+ | SHIMANO XT Di2 8150 SGS HYPERGLIDE+ | SHIMANO XT Di2 8150 SGS HYPERGLIDE+ |
| Crank | e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL) | e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL) | e*thirteen Race Carbon, 160 mm (S) / 165 mm (M, L) / 170 mm (XL) |
| Shifters | SHIMANO XT 8100 I-Spec EV | SHIMANO XT I-Spec EV / SHIMANO XT Di2 8150 | SHIMANO XT Di2 8150 I-Spec EV |
| 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); SHIMANO XT 8100 I-Spec EV; SHIMANO CS 6100, 10-51 T. / 12-Speed; SHIMANO HG 7100, 12-Speed | SHIMANO XT Di2 8150 SGS HYPERGLIDE+; e*thirteen Plus, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); SHIMANO XT I-Spec EV / SHIMANO XT Di2 8150; SHIMANO CS 7100, 10-51 T. / 12-Speed; SHIMANO HG 7100, 12-Speed | SHIMANO XT Di2 8150 SGS HYPERGLIDE+; e*thirteen Race Carbon, 160 mm (S) / 165 mm (M, L) / 170 mm (XL); SHIMANO XT Di2 8150 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 (31.5/29.5) / 110-15/148-12 TAS / CL |
| Tyres | SCHWALBE Magic Mary / Hans Dampf, EVO Super Ground / Trail TLE Soft 29 x 2.40 (f.) 29 x 2.35 (r.) · all trims | ||
| Weight | 22.8 kg | — | 21.2 kg |
| Price | €7,999 | €9,499 | €12,499 |
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