Lifespan Fitness Viper M4 Treadmill

Serious Performance for Serious Runners — The Lifespan Fitness Viper M4 Treadmill

The Viper M4 delivers commercial-grade treadmill performance in a home gym package. A 3.75 CHP EverDrive H7X brushless motor powers seamless speed and incline transitions from 1.0 to 20 km/h, while ShockControl Advanced Cushioning and a 520mm-wide DuraGrip AS Ultra Belt keep every stride smooth and joint-friendly. With 18 levels of automatic incline, 24 preset programs, 3 custom user programs, and Bluetooth connectivity to Zwift, Kinomap, FitLink, and Runna, the Viper M4 gives you everything you need to train with purpose. Backed by a 5-year motor and frame warranty and 24-month parts coverage, this is a treadmill built to last.

📱 Bluetooth App Connectivity

The Viper M4 connects via Bluetooth to four leading training platforms:

• Zwift — the world's most popular virtual training platform. Run in immersive 3D worlds, join group workouts, and compete in structured training plans. Your effort on the Viper M4 directly controls your avatar's pace in-game.
• Kinomap — stream real-world video routes from thousands of locations worldwide. Incline adjusts automatically to match the terrain, delivering an authentic outdoor running experience indoors.
• FitLink — track your workouts, monitor performance metrics, and log training history to keep your fitness progress on record.
• Runna — structured running training plans and guided workouts to help you hit your running goals faster.

🔥 Key Features

• 3.75 CHP EverDrive H7X Brushless Motor — smooth, seamless speed and incline transitions built for long-term reliability
• 1.0 – 20 km/h Speed Range — from gentle walks to fast running
• ShockControl Advanced Cushioning — protects joints and reduces impact on every stride
• 520mm Wide DuraGrip AS Ultra Belt — 1500mm x 520mm commercial-grade running surface
• 18-Level Automatic Incline — varied terrain simulation for more challenging workouts
• 24 Preset Programs + 3 Custom User Programs — structured sessions for every fitness goal
• Quick Controls — 3, 6, 9 preset speed and incline levels for on-the-fly adjustments
• EKG Hand Pulse Sensors — real-time heart rate monitoring
• Bluetooth Connectivity — compatible with Zwift, Kinomap, FitLink & Runna
• LCD Display — time/distance/calorie countdown modes
• Magnetic Safety Key — emergency stop for safe training
• 180kg Max User Weight — commercial-grade capacity
• 5-Year Motor & Frame Warranty — class-leading coverage
• 24-Month Parts Warranty — comprehensive after-sales protection

📐 Specifications

🚚 Shipping & Delivery

Free shipping to most Australian suburbs. Due to the size and weight of this item, remote and regional areas may incur additional freight charges. Contact us before ordering if you're unsure about your location.

✅ Why Buy from GymCentral?

• Australian owned and operated — we know fitness equipment and the Australian market
• Fast dispatch — most orders processed within 1–2 business days
• Dedicated support — real people to help with assembly questions, warranty claims, and after-sales care
• Secure checkout — shop with confidence via Shopify's encrypted platform
• 5-year motor & frame warranty + 24-month parts — backed by the manufacturer