ROCK MACHINE Catherine e90 Touring

An eMTB with a Dapu central motor and maximum torque up to 90Nm.

Discount for purchasing 2 or more e-bikes: 5%

Choose from the variants: info

Why this e-bike?

  • Equipped with a 500Wh battery integrated into the frame.

  • High-performance Dapu MD250S central motor.

  • Shimano BL-MT200/BR-MT200 hydraulic disc brakes with 160 mm discs.

  • SR Suntour Mobie25 RLR suspension fork with 75 mm front suspension travel

  • Charging time up to 3.5 hours.

  • WTB Nineline Comp 29x2.25" tyres with reflective stripe.



Try this e-bike for your long journeys over difficult terrain! The tyres give even greater grip on the road or trail. The light colour and reflective stripe make you more visible to others. And when the light is bad, just switch on the front and rear lights. A carrier mounted over the rear tyre is perfect for bringing supplies - food, water etc. Get yours now!


Click to display the e-bike range calculator

E-bike range calculator

Total weight of rider (incl. equipment)
Predominant route profile
Battery capacity
For 80 kg riders, with a battery capacity of Wh when driving with maximum assistance after a predominantly , the range on this e-bike will be approximately
(Setting specific assistant mode, electro-technical state, battery age, ambient temperature, aerodynamics and driving technique could affect the overall range)

Central drive DAPU 250S

Second generation: Advanced Japan technology + Great performance up to 90 Nm + Silent operations.

From the humble garage-days back in 1994 to the present fast changing times, Rock Machine has always followed one basic principle: Having fun behind the bars. Sure there are months in front of the computer, sure there are miles & miles on the jetplanes, sure they spent countless of hours by refining even the smallest frame details.



These might interest you:


                      E-Bike Buyer's Guide    Everything about batteries 

                      Delivery of your e-bike    Everything about e-bike motors 






Drive type SPORT DRIVE middle motor MD250S
Control SPORT DRIVE compact display and control ring
Capacity and battery type 500Wh (36V/13.8Ah) Li-ion, frame
Frame sizes 15.0"(S), 17.0"(M), 19.0"(L)
Frame type and material Alloy Al-6061 T6 Custom tubing, inner cable routing
Front fork SR Suntour Mobie25 RLR, 100 mm travel
Number of gears 1x9
Shifters and derailleur SHIMANO ALTUS SL-M2010-9R RapidFire Plus, 9-speed
Type and brand of brakes SHIMANO BL-MT200/BR-MT200, hydraulic disc brake
Cassette SHIMANO CS-HG200-9, 11-36T
The stem ONE1 TDS-C301 Alloy, 31.8 mm, +6°
Chain KMC e9S
Load capacity 120 kg
Saddle and seat post WTB Koda Sport; ONE1 Alloy, SPS 405, 27.2x350 mm
Tyres WTB Nineline Comp, 29x2.25", reflective stripe
Weight including battery 24,8 kg