1. Fix the weak link
Visually check your chain for rust and frozen links that won't turn. Loud squeaking while pedaling is also a good indicator that it's time to replace your chain. If you have any of these current issues, you'll have more fun with a silent, smooth-shifting SRAM chain.
2. Retire worn or cracked rubber
Fresh tires, brake pads, and new grips or handlebar tape feel great to ride with and keep you safe.
3. Cogs in the machine
Bikes with high mileage often need new chains and rear cogs (cassette) for smooth shifting while avoiding chain skip when pedaling hard. SRAM makes a variety of cassette options to get you going again that are available at your local dealer.
4. Brake check!
Worn, dirty cables = poor braking and shifting. Replace worn brake and shift cables with SRAM stainless steel cables.