
R.X750
Ultra
If trails are your thing then the R.X750 is the bike for you! Big Mountain at its best, with a powerful drive and forgiving chassis. The new IPU750 power unit in combination with the Brose Drive S-Mag motor is the benchmark for use in steep, challenging terrain. The semi-integrated, powerful 750 Wh battery uses the newest cell technology in a compact, robust aluminium housing; the ULTRA version even has a carbon fibre casing. The natural sensitivity of the Brose Drive S-Mag motor lends a real bike feeling to the R.X750; a maximum of 90 Nm torque allows the metres to melt away as you climb and the fun to increase.
The 150 mm chassis was entirely designed for superior Big Mountain use in order to achieve a higher degree of efficiency and improve downhill characteristics. The carbon frame of the R.X750 is light and extremely stiff, which combined with its speed-orientated descent geometry with low top tube, low damper, 66° steering angle and 74° seat angle, as well as a longer reach, ensures plenty of freedom of movement. A 29” front wheel combined with a 27.5” back wheel facilitates great handling; the 29” tyre improves the bike's behaviour when rolling over obstacles and reduces flip-over sensations while the nimble 27.5” tyre provides great agility on descents.




Features

When the best is the benchmark! E13 Race Carbon crank, Shimano XTR, DT Swiss HXC1200 Carbon wheel set. Our ultra model trail bike.
If trails are your thing then the R.X750 is the bike for you! Big Mountain at its best, with a powerful drive and forgiving chassis. The new IPU750 power unit in combination with the Brose Drive S-Mag motor is the benchmark for use in steep, challenging terrain. The semi-integrated, powerful 750 Wh battery uses the newest cell technology in a compact, robust aluminium housing; the ULTRA version even has a carbon fibre casing.
The natural sensitivity of the Brose Drive S-Mag motor lends a real bike feeling to the R.X750; a maximum of 90 Nm torque allows the metres to melt away as you climb and the fun to increase. The 150 mm chassis was entirely designed for superior Big Mountain use in order to achieve a higher degree of efficiency and improve downhill characteristics. The carbon frame of the R.X750 is light and extremely stiff, which combined with its speed-orientated descent geometry with low top tube, low damper, 66° steering angle and 74° seat angle, as well as a longer reach, ensures plenty of freedom of movement.
A 29 front wheel combined with a 27.5 back wheel facilitates great handling; the 29 tyre improves the bike's behaviour when rolling over obstacles and reduces flip-over sensations while the nimble 27.5 tyre provides great agility on descents.
DETAILS
- ROTWILD full carbon frame with HM fibres, optimized lay-up and carbon fibre linkage
- FOX 36 Factory Kashima / E-Bike+ / 68 mm OD Crown
- FOX DPX2 Factory Kashima
- BROSE S-Mag Motor
- 750 Wh Battery / carbon fibre housing
- CONNECT C Bluetooth interface and app
- SHIMANO XTR drive train / 12-speed cassette
- E13 Race Carbon cranks
- SHIMANO XTR 4 piston disc brake
- 203 mm Ice Tec discs / integrated speed sensor
- DT SWISS HXC1200 SPLINE Carbon wheel set
- 8PINS NGS2.0 seatpost / up to 230 mm travel
- ACROS head set with integrated rotational stop
- MONKEYLINK integrated light preparation (front)
- ERGON SM Mountain Pro saddle
Geometry

FRAME SIZE | S | M | L | XL | |||
A | SEAT TUBE LENGTH | [mm] | 413 | 444 | 473 | 509 | |
B | TOP TUBE LENGTH* | [mm] | 588 | 617 | 654 | 688 | |
C | HEAD TUBE LENGTH | [mm] | 110 | 110 | 130 | 140 | |
D | CHAIN STAY LENGTH | [mm] | 445 | ||||
E | BB HEIGHT | [mm] | 350 | ||||
F | BB DROP | [mm] | 15 | ||||
G | HEAD TUBE ANGLE | [ ° ] | 66 | ||||
H | SEAT TUBE ANGLE | [ ° ] | 74 | ||||
I | REACH | [mm] | 405 | 437 | 468 | 500 | |
J | STACK | [mm] | 610 | 617 | 637 | 648 | |
K | WHEEL BASE | [mm] | 1172 | 1198 | 1236 | 1270 | |
L | STANDOVER | [mm] | 750 |
Configuration
- Headset
-
ACROS RW750 1.5 HEADSET W/ BLOCKLOCK
- Rear Shock
-
FOX FLOAT DPX2 FACTORY KASHIMA
3-POS / EVOL LV / TRUNNION - Fork
-
FOX 36 FLOAT FACTORY KASHIMA
150 MM / FIT4 3-POS ADJUST / E-BIKE+ / OD-CROWN - Handlebar
-
ROTWILD B220 CARBON
Ø35 MM / 15 MM RISE / 780 MM WIDTH - Stem
-
ROTWILD S240
Ø35 MM / 50 MM / MONKEYLINK READY - Seatpost
-
8PINS NGS 2
Ø34.9 MM / SETBACK / UP TO UP TO 230 MM (XL) - Saddle
-
ERGON SM MOUNTAIN PRO
- Grips
-
ERGON GD10 SLIM FACTORY FROZEN
- Cranks
-
E13 RACE CARBON
160 mm (S) / 165 mm (M, L) / 170 mm (XL)
- Shifter
-
SHIMANO XTR I-SPEC EV
- Rear Derailleur
-
SHIMANO XTR 9100 12-Speed
- Cassette
-
SHIMANO XTR 9100 10-51T. 12-SPEED
- Brakes
-
SHIMANO XTR 9120 FIN PAD
- Discs
-
SHIMANO RT900/910 SENSOR ICE 203/203
- Wheel
-
DT SWISS HXC1200 SPLINE CARBON (30)
110-15/148-12 TAS CL - Tires
-
SCHWALBE MAGIC MARY / HANS DAMPF EVO
SUPER GROUND / TRAIL TLE SOFT / 29x2.40 / 27.5x2.60 - Battery
-
IPU750 CARBON
- Display
-
BROSE ALLROUND / CONNECT C
- Motor
-
BROSE DRIVE S MAG
AIR COOLER
from 11,499 €
(suggested retail price, may vary due to national VAT)

Big Mountain
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