What is the difference between the 27.5-inch and 29-inch YG90B versions?

Both versions use the same 48V 17Ah removable battery and 1000W peak drive setup, but they run different CST tyre sizes. The 27.5 x 2.4 setup feels a little more agile, while the 29 x 2.1 version rolls more smoothly over rough ground and longer trail sections.

Is the YG90B suitable for rougher terrain?

Yes. With dual suspension, hydraulic brakes and all-terrain CST tyres, the YG90B is better suited to gravel, mixed surfaces and uneven tracks than a basic commuter e-bike.

How long does the YG90B battery take to charge?

Third-party YG90B spec listings put charging time at around 7 to 8 hours for the 48V 17Ah battery. In practice, an overnight charge is the safest assumption before a full day's riding.

Is the Randride YG90B Elektro-Mountainbike easy to assemble?

The Randride YG90B Elektro-Mountainbike arrives mostly assembled. Final setup normally includes aligning and securing the handlebars, fitting the pedals and completing essential safety checks. Allow approximately 20–30 minutes, or select our professional assembly and PDI service.

Is the Randride YG90B Elektro-Mountainbike water resistant?

The Randride YG90B Elektro-Mountainbike is not fully waterproof. Avoid prolonged exposure to heavy rain, and never submerge or pressure wash the bike or its electrical components. After riding in wet conditions, wipe the bike dry and store it in a dry, sheltered location.

Randride YG90B Electric Mountain Bike 48V 17Ah Randride

Randride YG90B Elektro-Mountainbike

Motor

1000W

Battery

17AH 48V

Speed

45 KM/H

Range

71 KM

€1.561,95 €1.380,95

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Click & Collect Collection from our Nuneaton workshop

Collect from our Nuneaton workshop

Collection is available by appointment from our Nuneaton workshop. The preparation time depends on where the product is currently stored. Contact us before ordering for the latest availability, or place your order and we will confirm when it is ready to collect.

Transfer required to Nuneaton Usually 5–7 working days

Products stored at another warehouse normally require 5–7 working days to reach our workshop. We will confirm as soon as the item is ready and arrange your collection appointment.

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Seen the exact same product advertised for less? Send us the live offer before you order and we’ll check whether we can match it.

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The model, specification, colour, condition and delivery terms must be like-for-like
Marketplace or private sellers, used or clearance items, private codes, finance-only offers, bundle deals and obvious errors are excluded

Usually answered within 24 hours. Need a quicker answer? WhatsApp us or call 0800 099 6187.

Why Buy From TrailSurge? UK showroom, product support & aftercare

Buy your Randride YG90B Elektro-Mountainbike with UK-based support

TrailSurge is a UK retailer with a showroom and workshop in Nuneaton. Our team can help before you order and continue supporting you after your Randride YG90B Elektro-Mountainbike arrives.

UK-based customer support before and after your purchase
Showroom and workshop in Nuneaton
Help with product questions, setup, parts and aftercare
Tracked UK delivery with support if you need help with your order
Speak to a real member of our team before placing your order

Why buy through TrailSurge? For the best UK-based support and aftercare, we recommend buying through TrailSurge rather than ordering directly from overseas manufacturers or China-based sellers, where returns, warranty support and parts handling can be more difficult.

Need help with the Randride YG90B Elektro-Mountainbike? Ask our team a question before ordering.

WhatsApp Us Call Us 0800 099 6187

Road use notice: This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option? View road legal e-bikes .

Trail Surge Warranty Plus FULL OFFICIAL WARRANTY INCLUDED UK-based support alongside the manufacturer warranty TRAILSURGE COVER 12 months

TWO LAYERS OF PROTECTION

More confidence after you buy

TrailSurge Warranty+ gives you a direct UK warranty alongside the product’s manufacturer warranty.

01 TRAILSURGE WARRANTY +

12 months of TrailSurge support

UK-based fault support
Battery, motor and frame fully covered.
Repair, parts or another suitable solution where eligible

02 Randride WARRANTY

Manufacturer warranty period 2 years from delivery against manufacturing defects.

Manufacturer cover

The original frame, battery, forks, cockpit, brakes, lights, drivetrain, wheels, motor, throttle, controller, wiring, LCD display, kickstand and associated hardware.

Typical component protection Eligible faults affecting the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes and factory-fitted controls.

Description

Kurze Zusammenfassung
Das Randride YG90B ist ein leistungsstarkes, vollgefedertes Elektro-Mountainbike, das sowohl für Offroad-Abenteuer als auch für härtere Einsätze konzipiert wurde. Mit einem 1000 W-Motor und einem 48 V/17 Ah-Akku bietet es eine starke Leistung, während die 27,5″-Geländereifen und die Vollfederung dazu beitragen, dass Sie rauere Oberflächen mit mehr Vertrauen angehen können.

Sanfte Leistungsentfaltung
Mit dem 1000W-Motor liefert das YG90B ein starkes Drehmoment und eine hohe Höchstgeschwindigkeit (bis zu ~45 km/h). Die 21-Gang-Shimano-Schaltung ermöglicht es dem Fahrer, im Gelände angemessen zu schalten und die Trittfrequenz beim Treten anzupassen.

Komfort und Kontrolle
Die Vollfederung (Vorderradgabel + Hinterraddämpfer) und die 27,5″×2,4″ CST-Reifen sorgen für ein Fahrgefühl, das Unebenheiten absorbiert und eine bessere Kontrolle über gemischtes Terrain ermöglicht. Die hydraulischen Scheibenbremsen bieten eine bessere Bremsleistung als mechanische Optionen, was bei hohen Geschwindigkeiten oder bergab wichtig ist.

Intelligentes Batteriesystem
Die herausnehmbare (in einigen Listen) 48-V-17-Ah-Batterie bietet nach einigen Schätzungen eine beträchtliche Kapazität (~816 Wh). Tests in der Praxis haben ergeben, dass ein Fahrer mit einem Gewicht von ca. 80 kg im Elektromodus im gemischten Gelände ca. 45 km zurücklegen kann, obwohl der Hersteller für den Unterstützungsmodus 70-90 km angibt.

Technik, der Sie vertrauen können
Das YG90B verfügt über eine gut spezifizierte Shimano 21-Gang-Schaltung, hydraulische Scheibenbremsen, einen Aluminiumrahmen (der rostfrei ist und das Gewicht niedrig hält) und ein LCD-Farbdisplay, das Ihnen die Fahrdaten anzeigt.

Für den alltäglichen Gebrauch gebaut
Egal, ob Sie pendeln oder ins Gelände gehen, dieses Fahrrad bietet starke Fähigkeiten. Die 27,5″-Laufräder sorgen für ein ausgewogenes Verhältnis zwischen Agilität und Stabilität, die Vollfederung für Komfort auf unebenem Gelände und der Hochleistungsakku sowie der leistungsstarke Motor machen es auch für schwerere Fahrer oder längere Fahrten geeignet.

Specifications

Collection	Elektrische Fahrräder
Brand	Randride
Motor Power	1000W
Battery	17AH 48V
Top Speed	28 MPH
Acceleration Method	Regular Pedalling + Pedal Assist + Throttle Acceleration
Max Range	44 Miles
Charging Time	5+ Hours

Shock Absorbers	Full Suspension (Front + Back)
Wheel Size	27.5×2.4 CST / 29×2.1 CST
Brakes	Dual Hydraulic Disc Brakes
Max Rider Weight	120 kg
Dimensions
Built Dimensions	180 × 100 × 110 cm (L × W × H)
Box Dimensions	148 × 25 × 80 cm (L × W × H)

Check your fit

Size & Rider Fit

Seat Height: 83–100 cm
Maximum Rider Weight: 120 kg

Good to know Full-size mountain frame; check the 83–100 cm saddle range for fit.

Dual 1000W Motor System for Extreme Power & All-Terrain Performance

The Randride YG90B is equipped with a 1000 W brushless motor that produces strong acceleration and confident climbing across challenging terrain. Whether you're tackling steep forest tracks or open dirt paths, the bike’s engine delivers dependable power to keep you moving.

Dual 1000W Motor System for Extreme Power & All-Terrain Performance

The YG90B’s full suspension setup — combining front fork and rear shock absorber — smooths out uneven terrain and reduces rider fatigue. Together with the sturdy alloy frame and all-terrain tyres, the design ensures improved comfort, handling and ride stability on mixed surfaces.