Trek Marlin 7 Mountain Bike - Blue

It is recommended to have your bike serviced annually, or more often if you ride frequently or in challenging conditions.

The Bontrager XR2 Comp tires are a good all-around choice. However, consider tires with more aggressive tread patterns for rougher trails.

The RockShox Judy fork has an air spring. Adjust air pressure to suit rider weight and riding style for optimal performance. Refer to the RockShox manual.

Yes, you can upgrade components such as the drivetrain, brakes, and tires. Consult a local bike shop to determine compatibility and find suitable upgrades.

The recommended tire pressure is typically printed on the sidewall of the tire. Adjust it based on the terrain, your weight, and riding style.

Clean the chain regularly with a chain cleaner and lubricant. Reapply lubricant after cleaning and after riding in wet conditions.

Bleed the brakes to remove air from the hydraulic system. If the issue persists, have a professional check the brake lines and pads.

Adjust the derailleur indexing by turning the barrel adjuster on the rear derailleur. If that does not work, the derailleur may need professional service.

Check the tires for punctures and the rim tape for damage. Replace the tube if necessary and use sealant for improved protection against punctures.

Tighten the bolts on the frame, pedals, and bottom bracket. If the creaking persists, the bottom bracket may need to be replaced.