Smartmotion Catalyst 48V 17.5Ah Electric Bike

Huge 840Wh Battery. Low-Step Convenience. Ready for Road, Paths & Adventures.

The Smartmotion Catalyst is a versatile electric bike designed for riders who don't want to be limited to just one type of riding.

With its distinctive low-step 27.5-inch aluminium frame, 120mm suspension fork and wide tyres, the Catalyst has the capability to leave the bitumen behind while still being approachable and comfortable enough to use as an everyday e-bike.

At the heart of the Catalyst is a 48V rear hub drive system, paired with a huge 48V 17.5Ah / 840Wh battery. Shimano 9-speed gearing, hydraulic disc brakes and five levels of pedal assistance complete a package that's simple, capable and easy to ride.

For Adelaide riders who want one e-bike for recreational riding, commuting, bike paths, gravel tracks and weekend adventures, the Catalyst offers an impressive combination of versatility and battery capacity.

Key Highlights

• Huge 840Wh Battery
  The 48V 17.5Ah battery provides an impressive 840Wh of capacity, giving the Catalyst plenty in reserve for longer recreational rides and everyday use.

• 48V Electric Drive System
  The Catalyst uses a high-torque rear hub motor combined with a 48V electrical system to provide strong, straightforward assistance.

• Low-Step 27.5" Aluminium Frame
  One of our favourite features of the Catalyst. You get the sporty feel and capability of a recreational bike without having to swing your leg over a high traditional top tube.

• 120mm Front Suspension
  Generous suspension travel helps smooth out rough bike paths, gravel tracks and light trails, giving the Catalyst much greater versatility than a conventional urban e-bike.

• Shimano 9-Speed Gearing
  Proven Shimano gearing provides a useful range of mechanical gears to complement the electric assistance.

• Hydraulic Disc Brakes with 180mm Rotors
  Strong hydraulic braking provides confident stopping performance on both sealed and unsealed surfaces.

• 27.5" Wheels
  A great all-round wheel size that balances manoeuvrability, comfort and confidence across varied terrain.

• Five Levels of Pedal Assistance
  Easily choose how much assistance you want depending on the terrain and how much effort you want to put in.

• Integrated Full-Colour Display
  Neatly incorporated into the bike, providing your important riding and electric-system information at a glance.

Huge 840Wh Battery

One of the biggest reasons to consider the Smartmotion Catalyst is its battery.

The 48V 17.5Ah lithium battery provides a massive 840Wh of capacity.

That's a lot of battery for an e-bike in this category.

For riders who enjoy longer recreational rides, it means you've got plenty of capacity available. For shorter everyday trips, it can mean less frequent charging and more flexibility between rides.

Of course, actual riding range will always depend on rider weight, terrain, assistance level, wind, tyre pressure and riding style.

But rather than relying on an optimistic maximum-range figure, we think the 840Wh capacity itself tells the better story – it's simply a very large battery for this style of e-bike.

A Sporty E-Bike That's Easy to Get On

One of the features that really sets the Catalyst apart is its frame design.

Many recreational and mountain-style e-bikes use a high top tube. That can make getting on and off more difficult for riders with limited flexibility or anyone who simply prefers the convenience of a lower frame.

The Catalyst uses a hydroformed low-step aluminium frame.

This gives you easier access without turning the bike into a traditional upright city bike.

You still get the wider handlebars, 27.5-inch wheels, suspension and sporty riding position of a recreational e-bike – it's simply easier to get on and off.

For a lot of riders, that's an excellent combination.

Simple & Easy Electric Assistance

The Catalyst uses a cadence-sensing rear hub motor system with five assistance levels.

That makes the electric system very straightforward to use.

Start pedalling and the system recognises that the cranks are turning and provides assistance according to the level you've selected.

If you're not interested in complicated riding modes and endless settings, there's something appealing about that simplicity.

Choose your assistance level, select the appropriate mechanical gear and enjoy the ride.

120mm Suspension for Added Versatility

With 120mm of front suspension travel, the Catalyst has considerably more bump absorption than you'd typically find on an urban or trekking e-bike.

That gives you additional comfort and control when the surface gets rougher.

Potholes, uneven bike paths, gravel roads and easier off-road tracks are all much more comfortable when you've got a proper suspension fork working underneath you.

Combined with the 27.5-inch wheels and wide tyres, this gives the Catalyst the freedom to explore well beyond smooth city bike paths.

Shimano 9-Speed Gearing

The Catalyst uses a Shimano 9-speed drivetrain, giving you a good range of mechanical gears to work alongside the electric assistance.

Having proper gearing becomes particularly useful once you start riding on varied terrain.

Select an easier gear as the terrain gets steeper and a harder gear as your speed increases, then use the electric assistance to complement your own pedalling.

It's simple, familiar and easy to use.

Full Specifications

Why We Love It

The Smartmotion Catalyst fills a really useful gap in the e-bike market.

Not everyone wants a dedicated electric mountain bike, and not everyone wants a traditional upright city e-bike either.

The Catalyst sits nicely between the two.

The low-step frame makes it approachable and easy to get on and off, while the 120mm suspension and 27.5-inch wheels mean you're not restricted to perfectly smooth bike paths.

Then there's that battery.

At 48V 17.5Ah, you're getting a huge 840Wh of capacity.

For riders who want to head out and explore without constantly thinking about how much battery they have left, that's a major selling point.

It's a bike you can use for a recreational ride on Sunday and then commute to work on Monday.

That versatility is what we really like about it.

Great for Adelaide's Mix of Riding

Adelaide is exactly the sort of city where a versatile e-bike like the Catalyst makes sense.

Around Brighton, you can head out along the coastal paths towards Glenelg and beyond.

Want to explore somewhere different on the weekend? The suspension, wider tyres and recreational setup allow you to venture onto gravel tracks, rail trails and easier off-road terrain without feeling like you're riding a delicate city bike.

And with a massive 840Wh battery, you've got plenty of capacity available for riders who want to make a day of it.

The Catalyst isn't trying to be an aggressive full-suspension eMTB like the Smartmotion Hypersonic.

Instead, it's a comfortable, versatile and easy-to-use recreational e-bike that gives you the freedom to explore a much wider variety of terrain.

For many riders, that's exactly what they need.

Available at Electric Bikes Superstore Adelaide

Available at Electric Bikes Superstore, Brighton SA. Come in and take the Smartmotion Catalyst for a test ride and experience how comfortable and approachable the low-step frame feels.

Our team can help with sizing, setup and accessories to get the Catalyst configured for the type of riding you want to do.

Found a better price? We pride ourselves on offering great service and competitive pricing. Reach out to our team via the chat box below and we’ll let you know if we can match it.

Please note: Specifications, features, pricing and stock availability may change without notice. Battery range and performance will vary depending on rider weight, terrain, assist level and riding conditions. Please contact our team for more information, current availability or to arrange a test ride.