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Talk to a spin bike specialist| Flywheel | 10kg Magnetic Inertia Carbon Steel Flywheel |
| Drive System | Belt Drive |
| Resistance | 32 levels of Computerised Magnetic Tension Control, up to 700W at 120rpm |
| Warranty | 12 months parts replacement |
If you want structured indoor rides that mirror real road feel, the Lifespan SM720i tilts from -8 decline to +8 incline and runs 32 magnetic resistance levels, pushing up to 700W at 120rpm. The 10kg carbon steel flywheel and belt drive keep each stroke smooth while the handlebar buttons and console dial let you shift incline and resistance mid-ride.
It suits cyclists who train with Zwift, Kinomap or Fitlink, with road-style drop handlebars and double-sided SPD pedals that carry over from an outdoor bike. The saddle adjusts up, down, forwards, backwards and by angle, so riders up to 125kg can dial in a genuine road position.
What sets this one apart is the powered incline/decline on a spin bike: tilting from 4 degrees down to 9 up genuinely changes which muscles work, mimicking real road climbs indoors.
The 125 kg user limit is worth checking before you commit. The standout is app support: Zwift and Kinomap pairing turns those 32 resistance levels into structured, guided rides.
Adela Ledvinkova · Bachelor of Exercise & Sport Science · Our In-House Fitness Coach
Watch the SM720i in action before you commit, so you can see the incline mechanism, the control dial and the riding position for yourself.
Seeing the bike move tells you more about fit and function than any spec sheet can.
What this means for you: If you're unsure whether the riding position suits you, the video is the quickest way to check it.
The whole frame tilts, so you can ride uphill or downhill without leaving the saddle. This shifts the load between your quads and glutes the way real terrain does.
What this means for you: For anyone training for hilly routes, this lets you rehearse climbs indoors instead of only grinding against resistance.
Magnetic tension control means no friction pads to wear out and no touch to adjust, just 32 precise steps you set from the dial. The 700W ceiling at 120rpm leaves plenty of headroom for interval work.
What this means for you: The wide range suits a first-timer and a strong rider on the same bike, so nobody outgrows it quickly.
A 10kg flywheel carries momentum between pedal strokes, so the pedalling feel stays smooth and even rather than jerky. The belt drive runs quietly and needs no chain maintenance.
In practice, that steady feel is what makes longer sessions comfortable rather than choppy.
The bike pairs over Bluetooth with Fitlink, Zwift and Kinomap, and in Zwift the incline/decline and resistance follow the terrain, so you can ride virtual routes and log every session instead of staring at a wall.
App pairing is optional, not essential. The console runs on its own if you'd rather keep it simple.
What this means for you: If motivation is your sticking point, riding a Zwift route beats counting down the minutes.
Turn the dial to change resistance and use the handlebar buttons for incline and resistance, so you adjust effort mid-sprint without fumbling. The console shows time, watts, speed, distance, incline and resistance at a glance.
What this means for you: During intervals, changing resistance with a quick turn keeps your rhythm instead of breaking it.
Each pedal has an SPD clip on one side and a standard toe cage on the other, so you can clip in with cycling shoes or just ride in trainers.
This means the bike works for a household where one rider clips in and another doesn't.
What this means for you: No need to buy cleats on day one; add them later if you want the extra pedalling efficiency.
The drop-bar shape lets you change hand position between upright, hoods and the drops, which matters on longer rides when one grip gets tiring. Resistance and incline controls sit right in the bars.
What this means for you: The wide handlebar and seat adjustment range means riders of different heights can share the bike and still get a proper fit.
The tubular steel frame weighs 40kg and supports riders up to 125kg, so it stays planted during hard efforts. Transport wheels and floor levellers mean you can move it and set it steady on uneven floors.
At 142 cm x 72.5 cm, it fits a spare room or garage without dominating the space.
What this means for you: Setup is 5 steps in the manual with the included hex key and spanner, and the bike plugs into a power point for the incline motor and console.
| Resistance Type | 32 levels of Computerised Magnetic Tension Control, up to 700W at 120rpm |
| Flywheel | 10kg Magnetic Inertia Carbon Steel Flywheel |
| Drive System | Belt Drive |
| Max User Weight | 125 kg |
| Seat Adjustment | Adjustable up/down |
| Handlebar Adjustment | Road bike drop-bar style with integrated resistance and incline controls |
| Console / Display | Ultra Responsive Dial |
| Programs | 3 Preset Workout Programs |
| Pedals | Double Sided SPD / Standard Toe Cage |
| Assembled Dimensions | 142cm x 72.5cm x 117.5cm (L x W x H) |
| Product Weight | 40 kg |
| Warranty | 12 months parts replacement |
| Frame Material | Tubular Steel |
| Crank | 3-Piece Forged Steel Crank |
| Crank Arm Length | 170mm |
| Seat | Comfort Sport Saddle |
| Seat Adjustments | Adjustable up/down, forwards/backwards, and angle |
| Incline/Decline | -8 Decline (4 Degrees) to +8 Incline (9 Degrees) |
| Workout Statistics | Time, Watts, Speed, Distance, Incline level, Resistance level |
| Fitness App Compatibility | Fitlink, Zwift, Kinomap (Zwift controls incline/decline and resistance) |
| Features | Transport Wheels, Floor Levellers, Phone/Tablet Holder, Emergency Quick Stop Button |
| Gross Weight | 46 kg |
| Handlebar Height from Floor | 89 cm - 109.5 cm |
| Seat Height from Crank | 59 cm - 79 cm |
| Top Tube to Seat Centre Range | 67 cm - 78 cm |
| Q-Factor | 335mm |
Effort: 5 assembly steps in the manual, then plug it into a power point. Tools: a hex key and a 13/14/15 mm spanner are included, with the bolts and fixings.
The SM720i shifts the whole frame from -8 decline (4 degrees) up to +8 incline (9 degrees), controlled right from the handlebars. In practice it changes how the effort feels, loading your legs differently on climbs than on the flat. Paired with Zwift, the bike syncs incline/decline and resistance to the terrain on screen, which makes virtual routes far more engaging.
No. The dial console runs everything on its own, showing time, watts, speed, distance, incline and resistance, plus 3 preset programs. Apps like Fitlink, Zwift and Kinomap are there if you want guided rides or virtual routes, but they are optional. Prop your phone or tablet in the holder and you are set, with or without a connection.
For most home riders, yes. The 10kg magnetic flywheel with belt drive gives a smooth, quiet ride, and 32 computerised tension levels deliver up to 700W at 120rpm. That is plenty of range for intervals and steady climbs. The belt drive means no chain maintenance, and the magnetic resistance keeps noise down for early-morning sessions.
Assembled it measures 142cm long, 72.5cm wide and 117.5cm high, so it sits comfortably in a spare room or corner. Seat height adjusts from 59 to 79cm from the crank, plus forward/back and angle, and the handlebars range 89 to 109.5cm. Maximum user weight is 125kg. Transport wheels let you roll it aside when you are done.
It ships boxed at 46kg gross weight via our Australia-wide freight network. It will be delivered to your door. Check the box over before signing. If anything looks off, take photos straight away and get in touch with us before you start unpacking.
Take photos before unpacking and email support@cardioonline.com.au within 48 hours of delivery. We will lodge the freight claim, organise replacement parts or a full unit, and stay across it until you are riding. You never have to deal with the courier or the manufacturer directly, that part is our job.
The manual covers it in 5 steps: fit the stabiliser feet, attach the tablet holder to the console, mount the console and fit the pedals, fit the saddle, then plug in the power adapter. The hex key and spanner are included with the bolts and fixings. When first powered on, the bike tilts through its incline range to calibrate, so leave about 0.6 m clear around it. Once built, adjust the floor levellers so it sits steady before your first ride.
You get a 12 month parts replacement warranty, handled locally by us. If this bike shows the 100 Day Money Back Guarantee badge on its page, you have 100 days to return it as-new, disassembled in its original packaging with all parts. We refund the product price and original delivery fee with no restocking fee. We organise the return freight; you cover that cost.
Click below to download the user manual.
Download the user manual (PDF)This product ships in 2-3 business days after you place your order.
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Try it for 100 days. Return it if it is not right.
If your equipment is not right for your space or your training once you have lived with it, you can request a return within 100 days of purchase for a refund of the product price.
Available on products showing the 100 Day Money Back Guarantee badge. Return shipping is paid by the customer unless otherwise agreed. Original delivery, installation and service fees are non-refundable. See the full policy: /pages/risk-free-returns
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