From —/mo24, 36 or 48 months at 15.9% APR6 or 12 months at 0% interest
shoppayShop Pay
From €84,41/mo12 months at 0% interest
Up to 24 months available
Rated Excellent on Trustpilot
Trusted by TrailSurge customers
Home Delivery
Tracked options shown at checkout
Out of stock
This item is currently unavailable
Contact us for the latest restock estimate
We can recommend a suitable in-stock alternative
Click & CollectCollection 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 NuneatonUsually 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.
Best Price GuaranteedFound the same product for less?
Best Price Guaranteed
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.
We consider genuine UK retailer offers for items that are in stock
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
Share the competing offer and your details. We usually respond within 24 hours.
Checking: Koolux X9 Pro Electric Bike
Why Buy From TrailSurge?UK showroom, product support & aftercare
Buy your Koolux X9 Pro Electric Bike 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 Koolux X9 Pro Electric Bike 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 Koolux X9 Pro Electric Bike?Ask our team a question before ordering.
TrailSurge Warranty+✓
BEST WARRANTY IN THE UK
Stronger cover. UK support. Real help when you need it.
TrailSurge Warranty+
Extra protection, backed by our UK team
For the first 12 months, TrailSurge Warranty+ gives you direct UK support on eligible faults affecting the main factory-fitted components — with practical help to get you back up and running.
UK-based fault support
Major factory-fitted components covered
Repair, parts or another suitable solution where eligible
Typical component cover:
Eligible faults affecting major factory-fitted components, including the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes, and factory-fitted sensors or controls.
+Koolux manufacturer warranty
Warranty period
12 months against manufacturing defects.
What’s covered
Confirmed production faults affecting the original frame and factory-installed electrical or mechanical components.
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
.
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.
The Koolux X9 Pro Electric Bike 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.
The Koolux X9 Pro Electric Bike 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.