CVC, To follow up my email, Chuck has brought up some very good maintenance points. (Thanks Chuck) I wanted to share these with you as a properly maintained bike is a safer bike.
Tires: Tires wear out over time, especially the rear tire, which typically wears faster. Replace them when the tread is worn down, they have frequent punctures, or when sidewalls show signs of damage. Road tires generally last between 2,000 to 4,000 miles, depending on usage and conditions.
Brake Pads (Rim and Disc Brakes): Brake pads wear down with use and should be replaced when they become thin (usually less than 1.5mm for rim brakes, or when they have 1mm or less of pad material left for disc brakes), when they start making noise, or when braking performance decreases. For disc brakes, check for uneven wear and replace if the pads become glazed or contaminated.
Brake Rotors (Disc Brakes): Brake rotors also wear out over time, especially if the pads are worn down to the metal. Replace rotors when they reach the minimum thickness specified by the manufacturer, or if they are warped or damaged. Typically, rotors last longer than pads but should be inspected regularly. Bleed the brakes every 6-12 months or when brakes start feeling spongy.
Chain: The chain stretches and wears out over time, especially with heavy use or in harsh conditions. Replace the chain every 2,000 to 3,000 miles or when it measures 0.5-0.75% elongation with a chain checker tool. Regular replacement prevents excessive wear on the cassette and chainrings.
Tubeless tires need sealer every few months: Tire sealant in cycling tubeless tires should generally be replaced every 2 to 6 months, depending on various factors such as climate, the type of sealant used, and riding conditions. Here's a breakdown: Climate: In hot and dry conditions, sealant can dry out more quickly, so you may need to replace it every 2 to 3 months. In cooler, more humid climates, it might last up to 6 months.
Type of Sealant: Different brands have different longevity. Some sealants are designed to last longer than others, so check the manufacturer's recommendations. Riding Conditions: If you ride frequently or in rough conditions where punctures are more likely, you'll want to check and potentially top off the sealant more often.
Storage: If the bike is stored in a warm place, the sealant can dry out faster, so consider more frequent replacement.
If in doubt, go get it checked.