1. Introduction
Thank you for choosing the Soozier Foldable Indoor Bike Trainer. This manual provides essential information for the safe and efficient use of your new indoor bike trainer. This trainer allows you to convert your bicycle into a stationary exercise bike, suitable for indoor riding regardless of weather conditions. It is designed for bikes with 26" to 28" or 700C wheels and includes a quick-release skewer and a front wheel riser block for a complete setup.

Figure 1: Soozier Foldable Indoor Bike Trainer in use with a road bike.
2. Safety Information
- Read all instructions before using the bike trainer.
- Ensure the trainer is placed on a flat, stable surface to prevent tipping.
- Always check that your bicycle is securely mounted to the trainer before beginning your workout.
- Keep children and pets away from the trainer during use.
- Wear appropriate athletic footwear and clothing.
- Do not exceed the maximum weight capacity of 440 lbs (200 kg).
- This trainer is not suitable for mountain bikes (MTB) due to potential tire wear and noise.
- Discontinue use if you experience pain, dizziness, or discomfort.
3. Package Contents
Verify that all components are present and undamaged before assembly.
- Soozier Foldable Indoor Bike Trainer Frame
- Quick Release Skewer
- Front Wheel Riser Block
- Resistance Adjuster Mechanism
- Adjustable Foot Caps (pre-installed or separate)

Figure 2: Overview of included components and key features.
4. Assembly Instructions
The Soozier bike trainer is designed for straightforward assembly. Follow these steps to set up your trainer.
- Unfold the Frame: Carefully unfold the main frame of the bike trainer until it forms a stable A-frame structure. Ensure all locking mechanisms (if present) are engaged.
- Install Resistance Unit: Attach the resistance unit to the main frame. This typically involves aligning it with the designated mounting points and securing it with the provided bolts or quick-release pins.
- Prepare Quick Release Skewer: Replace your bicycle's existing rear wheel skewer with the quick-release skewer provided with the trainer. This ensures a secure fit.
- Adjust Foot Caps: If necessary, rotate the adjustable foot caps at the base of the trainer to ensure it sits level and stable on your floor.

Figure 3: Detail of an adjustable foot cap for stability.
5. Setup
Proper setup is crucial for a safe and effective workout.
- Mount the Bicycle:
- Position your bicycle with the rear wheel centered between the quick-release clamps of the trainer.
- Engage the quick-release skewer into the trainer's clamps and tighten securely. Ensure the bike is firmly held and does not wobble.
- Position Front Wheel Riser Block: Place the front wheel riser block directly under your bicycle's front wheel. This elevates the front wheel to match the height of the rear wheel, ensuring a level riding position and preventing discomfort.
- Adjust Resistance Roller: Adjust the micro-adjust knob on the resistance unit so that the roller makes firm contact with your bicycle's rear tire. The roller should be snug against the tire, but not so tight that it causes excessive friction or tire wear.
- Check Stability: Before riding, gently rock your bike to confirm that the trainer is stable and the bike is securely mounted. Adjust the foot caps if any instability is detected.

Figure 4: Proper bike mounting and front wheel riser block placement.

Figure 5: Adjusting foot pads for optimal stability.
6. Operating Instructions
Once your bike is securely mounted and the trainer is stable, you can begin your indoor cycling workout.
- Start Riding: Begin pedaling as you would on a regular bike. The resistance unit will provide a consistent workout.
- Adjust Resistance: The trainer features a noise-reduction resistance wheel. You can adjust the resistance level using the micro-adjust knob on the resistance unit to increase or decrease the intensity of your workout. Turn the knob clockwise to increase resistance and counter-clockwise to decrease it.
- Gear Shifting: Use your bicycle's gears to further fine-tune your workout intensity, similar to outdoor riding.
- Noise Considerations: While designed for low noise, some sound is inherent to bike trainers. Using a smooth road bike tire can help minimize noise compared to knobby mountain bike tires.

Figure 6: Detail of the resistance adjustment knob.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your bike trainer.
- Cleaning: Wipe down the trainer with a damp cloth after each use to remove sweat and dust. Avoid abrasive cleaners.
- Lubrication: Periodically check and lubricate any moving parts, such as the quick-release mechanism, if they become stiff.
- Inspect for Wear: Regularly inspect the frame, resistance unit, and quick-release skewer for any signs of wear, damage, or loose components. Tighten any loose bolts.
- Tire Condition: Ensure your bicycle's rear tire is in good condition. A worn or damaged tire can affect performance and increase noise.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trainer is unstable or wobbles. | Uneven floor surface; foot caps not adjusted; bike not securely mounted. | Ensure trainer is on a flat surface. Adjust the rotating foot caps until stable. Re-mount bike, ensuring quick-release is tight. |
| Excessive noise during operation. | Knobby mountain bike tire; resistance roller not properly engaged; loose components. | Use a smooth road bike tire if possible. Ensure resistance roller is firmly against the tire. Check and tighten all bolts. |
| Insufficient or inconsistent resistance. | Resistance roller not making firm contact with tire; resistance knob not adjusted. | Tighten the micro-adjust knob to ensure proper contact between the roller and tire. Adjust the resistance knob to desired level. |
| Bike feels unlevel. | Front wheel not elevated. | Ensure the front wheel riser block is correctly positioned under the front wheel. |
9. Specifications
- Model: 5661-0016
- Material: Alloy Steel
- Color: Black
- Product Dimensions (L x W x H): 54.5 cm x 47.2 cm x 39.1 cm (21.5" L x 18.6" W x 15.4" H)
- Weight Capacity: 440 lbs (200 kg)
- Compatible Wheel Sizes: 26" - 28" or 700C
- Resistance Mechanism: Magnetic, Air
- Item Weight: 6.19 kg (13.64 lbs)

Figure 7: Product dimensions of the bike trainer.
10. Storage
The Soozier bike trainer features a foldable design for easy storage and portability.
- Remove Bicycle: Detach your bicycle from the trainer by releasing the quick-release skewer.
- Fold the Frame: Collapse the trainer's frame by disengaging any locking mechanisms and folding the legs inward.
- Secure for Storage: Ensure the folded trainer is compact and stable. Store it in a dry, cool place away from direct sunlight and moisture.

Figure 8: The trainer's foldable design for convenient storage.
11. Product Video Overview
Watch this video for a visual overview of the Soozier Foldable Indoor Bike Trainer's features and functionality.
Video 1: Soozier Foldable Indoor Bike Trainer product overview.
12. Warranty and Support
The Soozier Foldable Indoor Bike Trainer comes with a 90-Day Warranty Against Manufacturer Defects.
For technical support, warranty claims, or inquiries, please contact the manufacturer:
- Manufacturer: Aosom Canada
- Contact Information: Markham, Ontario, CA Tel. 1-416-792-6088