KOOLUX X9 Pro Dual-Battery Electric Bike

The KOOLUX X9 Pro is the longest-range electric bike we sell. Two 48V 15.6Ah batteries combine for 31.2Ah (1,500 Wh) and a headline 100-180 km range — genuinely multi-day commuting, or a full weekend of touring, on a single charge cycle.

Key Features

• Dual 48V 15.6Ah batteries — 1,500 Wh total. Swap between packs on the move, and halve the charge cycles each battery accumulates (which is why dual-battery bikes tend to age slowest).


• 750W brushless motor — road-legal 250W EAPC mode as standard, unlocking to 45-50 km/h on private land.


• 100-180 km range — the longest in the Voltryv range by a clear margin.


• Hydraulic disc brakes with 20" × 4.0" Kenda fat tyres — confident stopping and grip on a bike carrying this much battery.


• Moped-style frame with long bench saddle, front basket and rear rack — comfortable for two-up-length journeys and practical for cargo.


• 25° climbing, IP54 sealing and a 120 kg max load.

Ideal for

Riders with long or unpredictable commutes, weekend tourers, couriers, and anyone who wants to charge once a week rather than every night.

Not sure how much battery you need? Our e-bike range guide shows the real-world maths, and our battery care guide explains how to make packs like these last five years or more.

Free UK delivery · 2-year warranty · 1-5 day dispatch from UK stock.