Rock Machine eStorm 70 Tour

The Rock Machine eStorm 70 Tour is a standard-frame aluminium 29er trekking e-bike with a Sport Drive mid-motor, a 100 mm fork and the commuter kit already fitted. It is designed for everyday commuting and relaxed weekend touring on paved roads, cycleways and light gravel rather than technical trail riding. If you want mid-drive assistance and a bike that is ready for work runs and mixed-surface weekends, this is the 70-level Tour model to compare, not the eStorm 90 Tour or Storm INT e70.

Motor, battery and range

The Sport Drive MD250S mid-drive is rated at 70 Nm continuous and 90 Nm peak, with assistance limited to 15.5 mph on the current UK build. Power comes from an integrated removable Sport Drive 36 V, 500 Wh battery. Rock Machine claims a maximum range of up to 90 km, which is a best-case figure: actual range varies with assistance mode, temperature, tyre pressure, wind, and rider and luggage weight.

The battery lifts out for indoor charging. The supplied Sport Drive 36 V/4 A charger has a claimed charging time of up to 3.5 hours.

What comes fitted

You get an AXA Blueline 30 front light, a Spanninga Pling XE rear light, full mudguards, an AVS carrier, an Atran Velo kickstand and an AXA Atlas frame lock. That cuts the extras you need before a commute. The carrier is specified for the AVS system, so compatible AVS bags or baskets can go on without replacing the rack.

Gearing is a microSHIFT Acolyte 1x8 with a 38T chainring and 12-42T cassette. Brakes are Alhonga HJ-OD07 hydraulic discs with 160 mm rotors front and rear. An RST Blaze fork gives 100 mm of travel, and the 29 in wheels wear Rubena Cheetah 29x2.1 in tyres, which suits rough roads and light gravel. Up front there is a 720 mm ONE1 bar, a 45 mm stem, a Selle Royal Vivo saddle, a 30.9 mm seatpost and a Sport Drive colour display with a USB port.

Sizes

Only M and L standard-frame options are published, and there is no verified easy-entry eStorm 70 Tour. Published colours are finishes, not separate builds. Retailer guidance matching this frame generation puts M at 160-180 cm and L at 175-195 cm. Riders from 175-180 cm sit in the overlap: published reach is 428 mm on M and 459 mm on L, with stack 669 mm on both, so compare those numbers or try both sizes if you can. Those height bands are retailer guidance, not a fit guarantee.

Living with it

Claimed weight is 27.35 kg, with size and weighing configuration not stated. That can be awkward on stairs, when you lift it onto a rack, or if you regularly carry the bike indoors. Rock Machine advertises five years on the frame when annual inspections are completed by an authorised dealer; otherwise the frame term drops to two years. Other components have a standard two-year warranty.

The £1,699 figure you may see is a retailer-stated reference price, not a manufacturer-published UK RRP and not a claim about today's cheapest offer. Compare current retailer prices. Confirm any component that matters to you on the bike you actually buy, because Rock Machine reserves the right to change specifications.