Trek 2023 FUEL EX Service Manual

To set up the suspension, start by adjusting the sag. Sit on the bike in your riding gear and let the suspension settle. The sag should be about 25-30% of the total travel. Use the air pressure chart provided by Trek for your weight to adjust the shock and fork pressures accordingly. Fine-tune the rebound and compression settings based on your riding preference and terrain.

Regular maintenance includes checking tire pressure and chain lubrication before each ride. Inspect the brakes, gears, and suspension monthly. Every 3-6 months, perform a more thorough inspection, including cleaning and re-greasing bearings, checking for wear on the drivetrain, and ensuring all bolts are properly torqued. Annual professional servicing is recommended to keep the bike in optimal condition.

First, check if the derailleur hanger is bent. Make sure the cables are not frayed and the housing is not kinked. Adjust the barrel adjuster to fine-tune the cable tension. If the problem persists, inspect the derailleur limit screws and ensure the chain is not worn out. If needed, consult a professional bike mechanic.

Tire pressure depends on the terrain and rider weight. For general trail riding, a range of 25-35 psi is recommended. Lighter riders or those seeking more traction might prefer the lower end, while heavier riders or those riding on smoother surfaces might opt for higher pressures. Always check the sidewall of your tire for manufacturer recommendations.

Start by rinsing the bike with low-pressure water to remove loose dirt. Use a bike-specific cleaner and a soft brush to scrub away mud, especially from the drivetrain and suspension. Rinse again with clean water. Dry the bike with a clean cloth and re-lubricate the chain and moving parts to prevent rust.

Spongy brakes usually indicate air in the hydraulic lines. Bleed the brakes according to the manufacturer's instructions. Ensure that the brake pads are not worn out and check for any leaks in the brake system. If the problem persists, have a professional inspect the brakes.

To reduce weight, consider upgrading to lighter components such as carbon handlebars, seat post, and rims. Tubeless tires can also save weight and improve performance. Additionally, swapping out heavy pedals and saddle for lighter options can contribute to an overall lighter setup.

Clean the bike thoroughly and lubricate the drivetrain. Store it in a cool, dry place away from direct sunlight. Hang the bike or use a stand to avoid tire deformation. Periodically check the tire pressure and rotate the wheels to prevent flat spots. If possible, occasionally take it for a short ride to keep the components in working order.

To adjust the seat height, stand next to your bike and set the seat so it's level with your hip bone. Sit on the saddle and ensure there's a slight bend in your knee when the pedal is at the lowest point. Adjust using the quick-release lever or seat post clamp, and ensure it is securely tightened before riding.

Creaking noises can originate from several areas. Check and tighten all bolts, particularly on the handlebars, seat post, and pedals. Inspect the bottom bracket and headset for wear or looseness. Clean and lubricate the chain and pivot points. If the noise persists, a professional mechanic can help diagnose the exact cause.