Introduction
The Tunturi Cardio Fit M45 Magnetic Pedal Exerciser is a stable and efficient fitness device designed for home use. Its wide stabilizers, adjustable pedals, and removable monitor make the M45 ideal for anyone looking to stay fit. This mini bike helps improve your physical condition, burn calories, and strengthen muscles with ease.
This manual provides essential information for the safe and effective use of your Tunturi Cardio Fit M45. Please read it thoroughly before operating the device and keep it for future reference.
Important Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and personal injury.
- Consult your physician before starting any exercise program, especially if you have pre-existing health conditions.
- Use the device only for its intended purpose as described in this manual.
- Keep children and pets away from the device during operation.
- Place the device on a stable, level surface. Ensure adequate space around the device for safe operation.
- Wear appropriate exercise clothing and footwear. Avoid loose clothing that could get caught in moving parts.
- Do not operate the device if it is damaged or malfunctioning.
- Do not exceed the maximum user weight recommendation (100 kg).
- Ensure all parts are securely fastened before each use.
Setup and Assembly
The Tunturi Cardio Fit M45 is designed for easy setup. Most components come pre-assembled. Follow these steps to prepare your device for use:
1. Unpacking and Placement
Carefully remove all components from the packaging. Place the main unit on a flat, stable surface. The wide stabilizers ensure enhanced stability, even during intensive workouts.

Figure 1: Product dimensions and weight. The device measures 56 cm in length, 51 cm in width, and 37 cm in height, weighing 10.8 kg. It includes a chair attachment strap for added stability.
2. Attaching the Chair Strap (Optional)
For additional stability, especially when using the exerciser with a chair, utilize the included adjustable strap. Secure the strap around the base of the exerciser and then around a sturdy chair leg or base to prevent movement during your workout.

Figure 2: Detail of the resistance knob and the adjustable strap. The strap can be used to secure the exerciser to a chair for enhanced stability.

Figure 3: Anti-slip design and chair attachment. The device features anti-slip feet to prevent sliding and includes an adjustable strap for securing it to a chair.
3. Pedal Adjustment
The pedals are designed to always be in the correct position for easy entry. The adjustable foot straps accommodate various shoe sizes and provide additional security during your workout.

Figure 4: Key design features. Includes adjustable foot straps for all shoe sizes, balance pedals for easy entry, a convenient handle for portability, and extra wide feet for superior stability.
Operating Instructions
1. Using the Monitor
The M45 is equipped with a clear, easy-to-read monitor powered by two AA batteries (included). The monitor displays important training data such as time, speed, distance, and calories burned. A unique feature is the ability to detach the monitor from the bike and place it on a table, desk, cabinet, or hold it in your hand for a clear overview during your workout, especially if the bike is under a table or desk.

Figure 5: Monitor display and features. The large, easy-to-read monitor tracks scan, time, speed, distance, total rotations, and calories. It is powered by 4x AA batteries (included) and supports Bluetooth connectivity.
2. Adjusting Resistance
The Tunturi Cardio Fit M45 offers 8 levels of magnetic resistance, easily adjustable with a rotary knob. This allows you to tailor your workout from light rehabilitation exercises to intense training sessions. The 1.5 kg flywheel provides a smooth, realistic cycling feel.

Figure 6: 8 resistance levels. The magnetic resistance can be easily adjusted using the green rotary knob, offering settings from light to heavy.
3. Versatile Usage
The compact design and stable construction allow the Tunturi Cardio Fit M45 to be used in various settings and for different training goals. It's suitable for daily movement, rehabilitation, and improving blood circulation.

Figure 7: Designed for various training goals. Ideal for daily movement to keep joints supple, training and rehabilitation, and promoting blood circulation to reduce the risk of thrombosis.

Figure 8: Usable anywhere due to compact size. The mini bike can be conveniently used while sitting on a sofa, in an armchair, or discreetly under a desk.
4. App Connectivity (Bluetooth)
The M45 can connect via Bluetooth to applications such as Tunturi Routes. This app provides access to various video routes and coaching videos, making your workout more varied and challenging.

Figure 9: Tunturi Routes app integration. Train indoors as if you are outside with the free Tunturi Routes training app, offering over 15 free route videos. Available on Google Play and the App Store.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your Tunturi Cardio Fit M45.
- Cleaning: Wipe down the device with a damp cloth after each use to remove sweat and dust. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check all bolts, nuts, and moving parts for tightness and wear. Tighten any loose fasteners.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: Replace the monitor batteries (2x AA) when the display becomes dim or unresponsive.

Figure 10: Whisper-quiet operation. The special design with a flywheel ensures a true cycling feel and quiet performance.
Troubleshooting
If you encounter issues with your Tunturi Cardio Fit M45, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Monitor not displaying | Dead batteries; loose battery connection. | Replace AA batteries; ensure batteries are correctly inserted. |
| Resistance not changing | Resistance knob not fully engaged; internal mechanism issue. | Ensure the knob is turned firmly to the desired level. If problem persists, contact support. |
| Device unstable during use | Not on a level surface; chair strap not used or loose. | Place on a flat, stable surface. Use and tighten the chair attachment strap. |
| Bluetooth connectivity issues | Bluetooth off on device/phone; app not updated. | Ensure Bluetooth is enabled. Restart the app and device. Check for app updates. |
For issues not listed here, or if solutions do not resolve the problem, please contact Tunturi customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Cardio Fit M45 |
| Model Number | 23TCFM4050 |
| Brand | Tunturi |
| Resistance Mechanism | Magnetic |
| Resistance Levels | 8 |
| Flywheel Weight | 1.5 kg |
| Power Source | Pedal powered (non-electric) |
| Monitor Display | Time, Speed, Distance, Calories, Total Rotations |
| Monitor Batteries | 2x AA (included) |
| Connectivity | Bluetooth (for Tunturi Routes app) |
| Dimensions (L x W x H) | 56 cm x 51 cm x 37 cm |
| Weight | 10.8 kg |
| Maximum User Weight | 100 kg |
| Main Material | Magnet, Metal, Polypropylene |
| Special Features | Removable display, adjustable resistance, app compatibility, adjustable pedals, chair attachment |
Warranty Information
For detailed warranty information, please refer to the warranty card included with your product or visit the official Tunturi website. Keep your proof of purchase for any warranty claims.
Customer Support
If you have any questions, require technical assistance, or need to order replacement parts, please contact Tunturi customer support. Contact details can typically be found on the official Tunturi website or on the product packaging.
For more information, visit: www.tunturi.com





