£44.99
TRAILSURGE
COMBINED CUSTOMER REVIEWS
OVERALL RATING ACROSS FOUR PLATFORMS
4.8/5
1909 customer reviews
Combined review snapshot
REVIEWS FROM
This is one combined summary, not the individual rating of any one platform.
RATING BREAKDOWN
NUMBER OF REVIEWS
78% of reviews are 5-starBased on the combined review counts above
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Koolux X9 Pro Electric Bike
SKU: TS-10169-X9SINGLEBA
Barcode: 5299040788497
Motor
750W
Battery
48V 15.6AH
Speed
31 MPH
Range
75 MILES
Was £1,199
£849.99
Sold out
Early Black FridaySave £349.01 (29% off)
Shop with confidence
We’re a genuine, authorised retailer for selected brands, with our own Nuneaton repairs workshop.
Buying Koolux online?
As with a car, ask where you can take your ride if it needs a repair.
Be cautious if a seller can’t give you a local workshop address, especially if they ship from overseas or dropship.
Check with the brand that the seller is authorised and ask who handles warranty repairs.
- ShowroomVisit by appointment
- Repairs workshopOn-site servicing
- Our own stockDispatched by us
TRAIL SURGE LTD
Company No. 16935369 · VAT No. 521226239
Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
Supporting our local community
- NHS staff
- Local police
- Fire & rescue
TRAILSURGE PRICE MATCH
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TrailSurge is a UK company and VAT registered too: Company No. 16935369 · VAT No. 521226239.
Klarna£283.33 ×3
Clearpay£212.50 ×4
PayPal£283.33 ×3
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Trail Surge Ltd · Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
Complete your ride
Choose your delivery setup
Boxed delivery
Usually 3–5 working days
Fully assembled delivery
assembly · Est. 5–7 working days
Next-day delivery
Selected in-stock items
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Options and charges are shown at checkout. Remote areas may take longer.
Excellent on Trustpilot
14 days to cancel after delivery. Up to 30 days for unused, unopened items.
Policy conditions and return costs may apply. Your statutory rights are unaffected.
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TrailSurge Warranty+
1 year of cover UK support
Worth £159 Included
View warranty details Hide warranty details Warranty details Hide warranty details
What’s covered
Frame, forks, motor, controller, battery, charger and factory-fitted electrical and mechanical parts.
Cover & exclusions
Normal wear, accidental damage, misuse and unauthorised modifications are generally excluded.
How to claim
Contact our UK team with your order number and a few photos.
Manufacturer warranty · Koolux
Manufacturer warranty period · 12 months against manufacturing defects.
Manufacturer cover · Confirmed production faults affecting the original frame and factory-installed electrical or mechanical components.
Separate manufacturer terms apply. Warranty periods are not added together.
Road use notice:
This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option?
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Description
The KOOLUX X9 Pro combines rugged fat‑tyre performance with the flexibility of single or dual battery power. It’s engineered for long‑range comfort and adaptable speed modes, making it ideal for commutes, off‑road trails, and extended adventures.
Smooth Power Delivery
The 250 W continuous‑output motor (750 W peak) delivers strong torque for hill climbs and quick starts. Five levels of pedal assist plus a throttle mode let you tailor power to your ride.
Comfort & Control
Wide 20″×4.0″ tyres and a front suspension fork absorb bumps on gravel, sand, or uneven pavement. Hydraulic disc brakes provide reliable stopping power in rain or shine.
Smart Battery System
Choose a single battery for lighter weight or dual batteries for maximum range. Removable, lockable packs charge in under nine hours and include built‑in protection against over‑charge, over‑discharge, and overheating.
Tech You Can Trust
The clear LCD display shows all ride metrics at a glance. Simple handlebar controls let you switch assist levels, toggle the throttle, and lock/unlock the system.
Built for Everyday Use
With its fold‑ready frame, sturdy rack and mudguard mounts, and splash‑proof design, the X9 Pro is ready for daily commutes, weekend explorations, or multi‑day touring—wherever the road (or trail) takes you.
Specifications
| Collection | Electric Bikes |
|---|---|
| Brand | Koolux |
| Motor Power | 750W |
| Battery | 48V 15.6Ah |
| Top Speed | 31 MPH |
| Max Range | 75 Miles |
| Charging Time | 7-8 Hours |
| Shock Absorbers | Full Suspension (Front + Back) |
| Wheel Size | 20 x 4.0" tyres |
| Brakes | Hydraulic Brakes |
| Gears | 7 Speed Shimano Gears |
| Bike Weight | 46 KG |
| Max Climb | 25" |
Size & Rider Fit
Check rider measurements and sizing before you order.
Maximum load
120 KG
More measurements & dimensions
- Deck size
- Not applicable — bicycle frame
- Built dimensions
- 175 × 60 × 131 cm (L × W × H)
- Box dimensions
- 145 × 28 × 87 cm (L × W × H)
Fit guidance: Compact 20 in fat-tyre frame. Published rider-fit geometry is limited, so contact us with your height and inside leg.
Sizes are a guide. Rider proportions, footwear and setup can affect fit.
What’s Included in the Box?
1 x Koolux X9 Pro Electric Bike
1 x Charger
2 x Keys
1 x Tool Kit
1 x User Manual
Spare Parts for This Model
We stock a range of spare parts in the UK and can source additional components for this model. Contact our team to check prices, compatibility and availability.
Frequently Asked Questions
Koolux X9 Pro Electric Bike
£849.99
