Prepare Your Bike: Clean your bike after rides, check tire tread and pressure (inflate slightly more in cold), and lubricate your chain. Consider using a GPS cycling computer for tracking. Regular tune-ups keep your bike in top shape.
Dress in Layers: Wear a moisture-wicking base layer, an insulating middle layer, and a waterproof/windproof outer layer. Add thermal socks, gloves, a cap under your helmet, and a neck gaiter to stay warm.
Stay Visible: Wear bright and reflective clothing, use lights at night, and always stay aware of traffic.