S600 PRO vs S900 PRO

Short answer: the S600 PRO is the better choice for most riders, because it handles everyday trips, long tours and rough tracks with one bike. The S900 PRO suits riders who mainly want off-road fun and the longest range. In this guide, we compare the S600 PRO vs S900 PRO step by step, so you can decide with confidence.

Both bikes are powerful. Both have full suspension and hydraulic brakes. Also, both come with free delivery in 3–7 working days. The real difference, therefore, is how you plan to ride.

S600 PRO vs S900 PRO: the quick comparison

First, here are the key numbers side by side. All figures come from the manufacturer.

Who should choose the S600 PRO?

Choose the Shengmilo S600 PRO if you want one e-bike that does everything well. In fact, it is our best-seller for a simple reason: it fits the way most people actually ride.

Two motors, one in each wheel

Most e-bikes have one motor. The S600 PRO, however, has two 1000W motors: one in the front wheel and one in the rear. As a result, both wheels pull. On steep hills, loose gravel and wet grass, that extra grip makes a clear difference.

A battery that lasts

The new 1200Wh battery is 43% bigger than the one in the original S600, at the same price. In practice, that means fewer charging stops and more freedom on long days out. For real numbers, read our guide How far can you really go on a 1200Wh battery?

Comfort on bad roads

Full suspension and 26 × 3.0 fat tires soak up potholes, roots and cobblestones. For riders with sensitive backs or knees, this matters a lot after the first hour.

Built to carry more

The S600 PRO is rated for 300 kg, twice as much as the S900 PRO. In addition, it comes with a strong metal rear rack for bags and shopping. So, if you are a heavier rider or carry luggage, this is the safer choice. Our guide E-bike for heavy riders: 7 things to check explains why.

In short, the S600 PRO is the sensible all-rounder. You can use it for shopping on Monday and a forest trail on Saturday.

Who should choose the S900 PRO?

Choose the Shengmilo S900 PRO if off-road riding and long range are your main reasons for buying an e-bike. Its design is inspired by off-road motorbikes, and it looks the part.

Its strengths are raw power and range. A single 3000W rear motor with 150 N·m of torque gives strong acceleration. Meanwhile, the 60V 35Ah battery stores 2100Wh, almost twice as much as the S600 PRO. Motorbike-style 19″ rims with 70 mm tires, a dual-crown front fork and a rear shock keep it stable on rough trails. Finally, the display has a power-on password, so nobody else can ride off with it.

The S900 PRO costs €210 more than the S600 PRO. For riders who spend most of their time on trails, that difference is worth it. For everyday use, however, the S600 PRO gives you more practical value for less money.

Power: how do they compare on hills?

Power decides how an e-bike feels on a climb. The S600 PRO combines 2 × 1000W with 2 × 80 N·m of torque and climbs slopes of up to 40°. Because both wheels drive, it also keeps grip on loose ground.

The S900 PRO, on the other hand, has more raw power from its 3000W motor, but only the rear wheel drives. On loose gravel, mud or wet grass, the S600 PRO’s two-wheel drive often grips better. On firm ground, however, the S900 PRO pulls harder.

Battery and range: which one goes further?

Range is often the deciding factor. The S600 PRO reaches about 50 km on electric power only and 90+ km with pedal assist.

The S900 PRO, by contrast, goes further on the throttle alone. Its 2100Wh battery gives 60–80 km without pedalling. So, if you rarely pedal and ride long distances, that is its biggest advantage.

Both batteries are rated for more than 1,500 charge cycles. To learn how lithium-ion batteries lose capacity over time, and how to slow that down, see our battery range guide.

Comfort: which one is easier on your body?

Both bikes have full suspension, so both the front and rear wheels absorb bumps. On top of that, the S600 PRO adds 26 × 3.0 fat tires, which soften the ride even more and grip well on sand, gravel and snow.

Riding position matters too. The S600 PRO has a relaxed, upright position that suits longer rides. The S900 PRO, in contrast, feels more like a light electric motorbike, with a sporty position and a motorbike-style seat. It is great fun on trails, but it feels less like a classic bicycle.

Brakes and gears: what do they share?

Both bikes use hydraulic disc brakes on both wheels. On the S600 PRO, the motors also cut out as soon as you pull a brake lever. Both bikes shift with a Shimano 7-speed drivetrain, so you can pick a light gear for climbs and a heavy one for flat roads.

Price: what do you get for your money?

The S600 PRO costs €1,389 and the S900 PRO costs €1,599. Both include free delivery in 3–7 working days.

For most buyers, the S600 PRO offers the best value per euro, and it carries twice the load. You get two motors and a 1200Wh battery for under €1,400, which is rare at this price. The S900 PRO asks a little more, mainly for its bigger battery and off-road design.

So, S600 PRO vs S900 PRO: which should you buy?

Here is a simple way to decide:

• Mostly roads, paths and tours? Choose the S600 PRO.
• Heavier rider or lots of luggage? Choose the S600 PRO (300 kg maximum load).
• Mostly trails, and maximum range on the throttle? Choose the S900 PRO.
• Not sure? Choose the S600 PRO. It is our best-seller because it suits the widest range of riders.

Still have a question about the S600 PRO vs S900 PRO? Write to our support team. We reply quickly and help you choose the bike that fits your riding, not the most expensive one. Once you have ordered, our guide e-bike delivery and assembly shows what happens next.