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Talk to a spin bike specialist| Flywheel | 18 kg heavy duty cast iron, TrueSpin™ Precision Flywheel |
| Resistance System | Manual adjustable mechanical resistance. Spring-driven double caliper system with unlimited resistance; push down to stop. |
| Warranty | 12 months parts replacement |
If you ride indoors 3 to 5 times a week and want a bike that feels like a studio spin class at home, the Lifespan Fitness SP-460 M2 runs an 18 kg cast iron flywheel for smooth, steady momentum through every sprint and climb. The spring-driven double caliper resistance gives you unlimited manual adjustment, and the 1.5 mm commercial-based steel frame holds riders up to 125 kg and 200 cm.
It suits a committed home rider who wants a proper fit, with a saddle that adjusts up, down, forwards, backwards and by angle, plus an LCD monitor tracking time, speed, distance, cadence, pulse and calories. The trade-off: you set resistance by hand with a knob, with no numbered levels or programmes, and the chain drive isn't as quiet as a belt-drive bike.
The 18 kg cast iron flywheel is the standout here: that weight carries real momentum through the pedal stroke, so standing climbs and steady spins feel smooth rather than jerky underfoot.
The EKG hand sensors only read pulse when you grip the bars, so they're not reliable mid-sprint. The spring-driven caliper gives unlimited resistance, which is where this bike earns its keep.
Adela Ledvinkova · Bachelor of Exercise & Sport Science · Our In-House Fitness Coach
Watch the SP-460 M2 move before you buy. The video shows the ride position, the flywheel spinning up and how the adjustments work in practice.
What this means for you: You get a clear sense of the fit and feel before it arrives, not just a spec sheet.
The 18 kg cast iron flywheel carries real momentum, so the pedal stroke feels smooth and continuous instead of jerky at the top and bottom.
Heavier flywheels hold their speed between strokes, which is what gives a spin bike that road-like feel.
What this means for you: The weight does the work: a steadier stroke that holds up through longer, harder intervals.
A manual spring-driven double caliper system gives you unlimited resistance, so you turn the knob to the exact tension you want rather than clicking through fixed levels.
The mechanical caliper setup lets you dial in anything from an easy warm-up to a heavy standing climb.
What this means for you: You are never stuck between two preset levels. The tension that suits your legs today is always available.
The large LCD monitor tracks the numbers that actually guide a session: time, speed, distance, cadence, pulse and calories.
Cadence (RPM) is the one I watch most on a spin bike, since holding a target RPM is how you keep an interval honest.
What this means for you: Enough feedback to pace yourself properly without a phone or extra gadgets.
The seat moves up, down, forwards, backwards and tilts, while the handlebars adjust up and down, so you can set a proper riding position.
With seat height adjustable from 62 cm to 84 cm (crank to top) and a 200 cm maximum user height, it suits most adults and more than one rider in a household.
What this means for you: Dial in a fit that keeps your knees and lower back happy, and swap riders in seconds.
The frame uses 1.5 mm commercial-based tubular steel with a 125 kg maximum user weight, so it stays planted when you get out of the saddle and push.
Floor levellers and transport wheels round it out: steady on uneven floors, easy to roll out of the way between sessions.
What this means for you: A stable base for standing climbs and sprints, with the option to move it when you need the room back.
The racing-design comfort saddle is finished in PU leather and sits on a fully adjustable post, so you can find the position that keeps longer rides comfortable.
If you want more padding, it also takes aftermarket Velo Plush seats.
What this means for you: A saddle you can fine-tune now, and upgrade later if your sessions get longer.
A phone holder and drink bottle holder come in the box, so your screen and water are within reach from the first ride.
What this means for you: Follow a ride on your phone and stay hydrated without rigging up your own mounts.
| Resistance Type | Manual adjustable mechanical resistance. Spring-driven double caliper system with unlimited resistance; push down to stop. |
| Flywheel | 18 kg heavy duty cast iron, TrueSpin™ Precision Flywheel |
| Drive System | Chain drive |
| Max User Weight | 125 kg |
| Seat Adjustment | Comfort sports saddle with racing design (PU leather). Adjustable up/down, forwards/backwards, and angle. Compatible with Velo Plush seats. |
| Handlebar Adjustment | Adjustable up/down with built-in EKG hand pulse sensors |
| Console / Display | Large LCD display |
| Workout Metrics | Time, Speed, Distance, Cadence (RPM), Pulse, Calories |
| Pedals | Aluminium alloy pedals with toe clips. Compatible with aftermarket cleats and custom pedals. |
| Assembled Dimensions | 128 cm x 51 cm x 120 cm (L x W x H) |
| Product Weight | 40 kg |
| Warranty | 12 months parts replacement |
| Frame | 1.5 mm commercial-based tubular steel |
| Crank | 3-piece forged steel crank |
| Crank Arm Length | 170 mm |
| Seat & Handlebar Posts | Scratch-resistant chrome plated |
| Heart Rate Sensors | Built-in EKG hand pulse sensors |
| Included Accessories | Phone holder, Drink bottle holder |
| Features | Transport wheels, Floor levellers |
| Maximum User Height | 200 cm |
| Seat Adjustment (Crank to Top) | 62 cm - 84 cm |
| Seat Adjustment (Top Tube to Centre) | 58 cm - 75 cm |
| Packaging Dimensions | 108 cm x 20 cm x 84 cm (L x W x H) |
| Gross Weight | 45 kg |
Effort: 4 assembly steps in the manual. Tools: the assembly tools are supplied with the bolts and fixings.
The resistance uses pads on a spring-driven caliper, so expect a steady mechanical sound rather than the near-silence of a belt-drive magnetic bike. The 18 kg TrueSpin flywheel is balance tested to minimise knocking noises, and it's much quieter than the whir of a fan bike. A mat underneath helps protect the floor and dampen noise in upstairs rooms.
It's a manual mechanical system with a spring-driven double caliper, giving you unlimited resistance by feel rather than preset levels. Turn the knob to go from an easy spin to a grinding seated climb. There's no console-controlled resistance here, so you set the load with your hand, not a button. Simple, reliable, no electronics to fail.
Most people fit well. The seat adjusts up and down, forwards and backwards, plus angle, with a crank-to-top range of 62 to 84 cm. Maximum user height is 200 cm and maximum user weight is 125 kg. The handlebars adjust up and down too. If you're very tall or short, that four-way seat movement is what gets you dialled in.
The built-in EKG hand pulse sensors on the handlebars give you a ballpark figure when you grip them, which is fine for a casual check. Lifespan notes they aren't medical devices and that movement affects the reading. For genuine heart rate zone training, use a chest strap with your own watch or app, since gripping the bars mid-sprint isn't practical and the readings drift when you're working hard.
Assembled, it's 128 cm long, 51 cm wide and 120 cm tall, so it tucks into a spare corner or a small home gym without trouble. Built-in transport wheels let you tip and roll it out of the way, and floor levellers steady it on uneven surfaces.
The manual covers it in 4 steps: bolt on the front and rear stabilisers, fit the seat posts and saddle, fit the handlebar and slide on the monitor, then thread on the pedals. The main frame, flywheel and drivetrain arrive pre-built, and the tools you need are supplied in the box. The carton weighs 45 kg, so plan how you'll move it to the room you're building it in.
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 from purchase to return it as-new, disassembled in its original packaging with all parts. We refund the product price and the original delivery fee, with no restocking fee. We organise the return freight; you cover that cost.
Take photos before you unpack and email them to support@cardioonline.com.au within 48 hours of delivery. We'll lodge the freight claim, send replacement parts or a full unit, and stay across it until you're riding. You won't deal with the courier or the manufacturer directly, that's our job to sort.
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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