R.X750

PRO (HT)

Switch on. Get on. Accelerate. The mountain’s calling. And the Big Mountain hardtail R.X750 HT answers this call. Built for alpine terrain, interlocking single trails, first descents and virgin terrain. A bike must prove itself away from the well-known - reliability, handling and performance play a decisive role here.

With its light, full carbon frame the R.X 750 HT possesses all these properties and more. For example, the integrated 750 Wh power unit and the Brose Drive S-Mag motor both deliver solid performance and range. With a maximum of 90 Nm torque and improved responsiveness the motor shows how good it is, particularly in technical terrain. The motor decouples 100% beyond 25 km/hr enabling easy pedalling without resistance at high speeds. The levels of support can be individually set with the motor's own Smartphone app, from efficient up to extremely powerful, corresponding perfectly to individual requirements. The modern, shallow trail geometry with 66° steering tube angle and Fox 36” fork with 120 mm travel are tools for winding descents on mountain trails and moderate Alpine terrain. Great freedom of movement and agility are also provided by the Eightpins seat post and low set top tube. The R.X750 HT - a tough performer with great characteristics.

IPU750 Semi-Integrated Battery

Semi-integrated, easily removable battery with 750 Wh for more elevation gain and Brose Drive S-Mag with 90 Nm maximum power, the benchmark for power delivery, precise sensor system and weight

Double Wall Tube

Special hollow chamber design combines the outer shell with the inner tube around the heavily stressed head tube area, thereby achieving a high level of stability and stiffness at minimal weight

Tailored Wheel Size

Wheel size mix with 27.5" rear wheel and 29" front wheel, which combines the best of both worlds: great steering stability and optimal roll-over characteristics paired with a maximum of damping and traction

Integrated Carbon Motor Case

Maximum stiff connection from head tube via down tube to the motor shaft for very precise riding characteristics. Special Air Skid Plate protects the motor housing and dissipates heat to the outside

Features

Modern, shallow trail geometry with 66° steering tube angle and 120 mm Fox 36 fork. Built for alpine terrain. Tough performer with great characteristics.

If blocked single trails in alpine terrain and technical challenges are what you love, the hardtail Big Mountain R.X750 is the bike for you. The lightweight full carbon frame, the Fox 36 forks with 120 mm of suspension travel and the low trail geometry with a steering angle of 66° make it a reliable partner for mountain riders who want to conquer summits but do not go for the most extreme descents.

With its Eightpins seat post and low top tube, the R.X750 hardtail offers you plenty of freedom of movement and agility. The combination of a 29 front wheel and 27.5 rear wheel guarantees outstanding handling. The 29x2.4 tyre on the front provides excellent rollover resistance and reduces the feeling of front-tipping in downhill sections, while the 27.5x2.6 tyre on the back gives better traction.

You will no longer feel intimidated by long steep climbs and all-day touring in rough terrain with the IPU750 integrated power unit and the Brose Drive S Mag motor to help you. The new tailor-made lightweight ROTWILD battery sets new standards. It produces 750 Wh and is based on the latest 21700 cell technology. The powerful Brose Drive S Mag motor has a maximum power output of 90 Nm over a broad cadence range and a faster response in technical terrain. In addition, the motor cuts out completely at the statutory speed limit, which allows you to pedal without resistance at speeds above 25 km/h. You can use a smartphone app to customise the levels of support, from highly efficient to extremely powerful, to suit your personal preferences.

DETAILS

ROTWILD full carbon e-mtb frame
FOX 36 Performance / E-Bike+
BROSE S-Mag Motor
750 Wh Battery / aluminium housing
CONNECT C Bluetooth interface and app
SHIMANO XT drive train / 12-speed cassette
SHIMANO XT 4 piston disc brake
203 mm Ice Tec discs / integrated speed sensor
DT SWISS HX1501 SPLINE ONE wheel set
8PINS H01 seatpost / up to 230 mm travel
ACROS head set with integrated rotational stop
MONKEYLINK integrated light preparation (front)

Geometry

*including 25 mm offset / setback
	FRAME SIZE		S	M	L	XL
A	SEAT TUBE LENGTH	[mm]	413	444	473	509
B	TOP TUBE LENGTH*	[mm]	572	615	653	687
C	HEAD TUBE LENGTH	[mm]	110	110	130	145
D	CHAIN STAY LENGTH	[mm]	445
E	BB HEIGHT	[mm]	306
F	BB DROP	[mm]	60

G	HEAD TUBE ANGLE	[ ° ]	66,5
H	SEAT TUBE ANGLE	[ ° ]	74

I	REACH	[mm]	398	428	460	491
J	STACK	[mm]	644	644	662	676

K	WHEEL BASE	[mm]	1147	1177	1218	1254
L	STANDOVER	[mm]	718	745

Configuration

Headset: ACROS RW750 1.5 HEADSET W/ BLOCKLOCK
Fork: FOX 36 FLOAT PERFORMANCE
120 MM / 3-POS GRIP / E-BIKE+
Handlebar: B35
Ø35 mm / 15 mm rise / 780 mm width
Stem: S35
Ø35 mm / 50 mm / MonkeyLink ready
Seatpost: EIGHTPINS H01
Ø34.9 mm / OFFSET / 144 mm (S) / 162 mm (M) / 178 mm (L) / 196 mm (XL)
Saddle: ERGON SM-E MOUNTAIN SPORT
Grips: ERGON GD10 SLIM FACTORY FROZEN
Cranks: E13 PLUS
160 mm (S) / 165 mm (M, L) / 170 mm (XL)

Shifter: SHIMANO XT I-SPEC EV
Rear Derailleur: SHIMANO XT 8100 12-Speed
Cassette: SHIMANO CS 7100 10-51T. 12-SPEED
Brakes: SHIMANO XT 8120 FIN PAD
Discs: SHIMANO RT800/810 SENSOR ICE 203/203
Wheel: DT SWISS HX1501 SPLINE ONE (30)
110-15/148-12 TAS CL
Tires: CONTINENTAL BARON PROJEKT
PROTECTION 29x2.40 / 27.5x2.60
Battery: IPU750 REMOVABLE
Display: BLOKS 14D / CONNECT C
Motor: BROSE DRIVE S MAG
AIR COOLER