ROCK MACHINE Storm e90-29 Touring

An eMTB with a Sport Drive 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 400Wh frame battery.
  • The Sport Drive central motor ensures high performance.
  • Shimano BR-MT200 disc brakes with 160 mm discs.
  • WTB Nineline Comp 29x2.25" tyres with reflective stripe.
  • Charging time up to 3.5 hours.
  • SR Suntour Mobie25 RLR fork.



This rugged bike is ideal for trekking! Front and rear fenders give you added protection against muddy trails. Front and rear lights give you more visibility in low-light conditions. A rack over the rear tyre allows you to bring supplies on a long journey. Try one today!


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)

Trekking or cross e-bike is the right choice for your long and enjoyable bike trips. On greatebike.eu you will find only touring and trekking e-bikes with a high range at an attractive price. Cross e-bikes are specifically designed for light terrain.

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.



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                      E-Bike Buyer's Guide    Everything about batteries 

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






Drive type SPORT DRIVE MD250S, 36V, 250W, 90Nm
Capacity and battery type 500Wh, SPORT DRIVE semi-integrated downtube battery, 36V
Control Display Sport Drive Compact
Frame sizes 15"(S), 17"(M), 19"(L), 21"(XL)
Frame type and material Alloy 6061, T6 Custom Tubing
Front fork ZOOM 595S AMS HLO, travel 100 mm
Number of gears 1x9
Shifters and derailleur SHIMANO ALTUS SL-M2010-9R RapidFire Plus and SHIMANO ALTUS RD-M2000 Shadow
Type and brand of brakes SHIMANO ALTUS MT200, disc160mm
Crankset Wheel Top ED2L
Cassette SHIMANO CS-HG200-9
The stem ONE1 TDS-C301 Alloy, 31.8mm
Chain KMC e9S
Handlebars ONE1 Alloy, MTB AL-325BT
Saddle and seat post WTB Volt Sport and ONE1 Alloy, SPS 405, 27.2x350mm
Rims and hubs WTB SX19 and SHIMANO HB-M6010/FH-M4050
Tyres WTB Nineline Comp, 29x2.25", Reflective Stripe
Center axis 15x110mm Thru axle / 10x135mm QR
Lighting AXA Blueline 30 / Busch + Müller ILU SR
Weight including battery 22,8 kg