Rock Machine eStorm 90 Tour
A fully equipped mid-drive e-bike for commuting and leisure touring, offered as a standard-frame eStorm 90 Tour and an easy-entry EE.
- Sport Drive mid-drive, up to 90 Nm peak: Mid-drive assistance for commuting and leisure touring
- 100 mm front suspension and 29-inch tyres: A more comfortable ride on rough roads and gravel paths
- Lights, mudguards, rack, kickstand and frame lock: You can commute or tour without bolting extras on first
- Standard frame or easy-entry EE: Conventional access in M and L, or a step-through frame
- Integrated 504 Wh or 500 Wh battery: 504 Wh on the standard frame, 500 Wh on the EE
- AVS-compatible rear carrier on the standard build: Panniers or a basket can go on without adding a rack first
Rock Machine eStorm 90 Tour Deals
Prices and availability can change quickly. Delivery charges are not always included in listed prices.
Final price, stock status and delivery terms are set by retailer. We may receive a commission on purchases made.
Bikesy's Verdict
If you want a utility e-bike for commuting and leisure touring, the eStorm 90 Tour is a good match: mid-drive support up to 90 Nm peak, 29-inch tyres with 100 mm of front travel, and lights, mudguards, a rack, kickstand and frame lock already on the bike. It is worth comparing current UK offers, but only after you have chosen the frame. The standard eStorm 90 Tour and the easy-entry EE are separate bikes, with different published batteries and range claims, and shop listings can disagree on smaller fittings. Choose the standard frame for the 504 Wh removable battery and the listed UK components; choose the EE if a step-through frame will make daily use easier. If you are between 175 and 185 cm, try both standard sizes.
Pros
- Mid-drive Sport Drive support up to 90 Nm peak
- 100 mm fork and 29-inch tyres for rough roads and gravel
- Lights, mudguards, rack, kickstand and frame lock already fitted
- Standard-frame 504 Wh battery is removable, with charging quoted at up to 3.5 hours
- Easy-entry EE option for step-through access
Cons
- Claimed 27.35 kg on the standard frame is a handful on stairs, in storage and on a car rack
- Standard-build eight-speed 12-42T gearing and 160 mm rotors may feel limited on steep, heavily loaded rides
- Range figures are maxima in ideal conditions, so cold, wind, high assistance and luggage will shorten them
This bike is for the commuter or leisure tourer who wants mid-drive help, 100 mm of front suspension and 29-inch tyres, plus lights, mudguards, a rack, a kickstand and a frame lock already fitted. That is everyday commuting, leisure touring and the odd rough road or gravel path. If that is you, it is worth comparing current UK offers - once you have decided between the standard frame and the easy-entry EE.
Standard frame or easy-entry?
Two current variants belong here, and they need to stay separate. The eStorm 90 Tour is the standard-frame bike, listed in M and L. The eStorm 90 Tour EE is the easy-entry, step-through version; the official product page currently shows L. Keep each one's battery, range, sizing and kit list to that bike, because they are not the same spec.
A few shops label this generation 2026, but the official UK product page publishes no model year. Identify an offer by the frame variant and the specification, not by a year on the listing. Some retailers also put M and L on separate pages, so match the size as well as the name.
Motor, battery and range
The standard-frame bike uses a Sport Drive MD250S mid-drive: 250 W, 70 Nm continuous and 90 Nm peak. Its official battery is an integrated 504 Wh pack you can remove for charging, and a UK retailer quotes a maximum of 56 miles in ideal conditions. That is a ceiling, not what every ride will return. Assistance mode, temperature, tyre pressure, wind and the combined weight of rider and luggage all move the number. Motor support cuts at 15.5 mph. The supplied 36 V/4 A charger is quoted at up to 3.5 hours.
The EE officially states Sport Drive mid-drive support up to 90 Nm peak, an integrated 500 Wh battery and a manufacturer maximum of up to 90 km. Real range still varies with route, assistance and conditions. Leave the standard bike's 56-mile figure, charger details and named components with the standard bike.
Everyday equipment
Both variants include lights, full mudguards, a rear rack, kickstand and frame lock.
On the standard UK build the carrier is AVS-compatible, so you can add panniers, bags or a basket without fitting a rack first. One established retailer publishes a 15 kg rack load. That figure does not confirm child-seat compatibility; if you need a seat, check the accessory and the rack limits before you buy.
Battery notation and the named lock or chain can differ between retailer specifications. Match the frame variant and the core Sport Drive system, then check the exact fitted equipment on the offer you are actually buying.
Alternatives to Consider
The closest same-brand alternative is the Rock Machine eStorm 70 Tour. It targets the same commuting and easy-touring use and also lists 90 Nm peak support, a 500 Wh battery, a maximum of up to 90 km, 100 mm of suspension, 29x2.1-inch tyres and full touring equipment. The model number alone does not establish a clear hierarchy between them.
Full Specification
eStorm 90 Tour and eStorm 90 Tour EE
| Specification | Detail |
|---|---|
| Intended use | Everyday commuting and weekend or longer touring |
| Motor support | Sport Drive mid-drive support up to 90 Nm peak |
| Front suspension and wheels | 100 mm suspension fork with 29-inch tyres |
| Utility equipment | Lights, full mudguards, rear rack, kickstand and frame lock fitted |
eStorm 90 Tour standard frame
| Specification | Detail |
|---|---|
| Frame | Al-6061 T6 alloy, internal cable routing and replaceable derailleur hanger |
| Motor | Sport Drive MD250S mid-drive, 250 W, 70 Nm continuous and 90 Nm peak |
| Battery | Integrated 504 Wh battery; removable for charging |
| Maximum range | Up to 56 miles in ideal conditions; affected by assistance mode, temperature, tyre pressure, wind and combined rider/luggage weight |
| Charger | 36 V/4 A Sport Drive charger; charging time up to 3.5 hours |
| Display | Sport Drive colour display with USB port |
| Fork | RST Blaze, 100 mm travel |
| Drivetrain | microSHIFT Acolyte 1x8 with 12-42T cassette and 38T chainring |
| Brakes | Alhonga HJ-OD07 hydraulic discs with 160 mm front and rear rotors |
| Tyres | Rubena Cheetah 29x2.1 inches |
| Rear carrier | AVS-compatible alloy rear carrier fitted; 15 kg rack load published by an established retailer |
| Assistance cut-off | 15.5 mph |
| Claimed weight | 27.35 kg (approximate retailer specification; weighing method and size are not stated) |
eStorm 90 Tour EE
| Specification | Detail |
|---|---|
| Frame access | Easy-entry frame |
| Battery | Integrated 500 Wh battery |
| Maximum range | Up to 90 km (manufacturer maximum; real range varies with route, assistance and conditions) |