WHAT IS ZONE 2?
The most effective training zone most cyclists ignore.
Zone 2 is the aerobic base zone — roughly 60–75% of your maximum heart rate. At this intensity your body primarily burns fat for fuel, spares glycogen, and stimulates mitochondrial biogenesis. The result: higher VO₂ max, better endurance, and faster recovery between hard sessions.
Elite cyclists spend 70–80% of their training volume in Zone 2. The problem? It's easy to drift above it — especially on climbs. RideTheBound keeps you honest with live heart rate feedback throughout every session.
HEART RATE TRAINING ZONES
< 60% max HR
60 – 75% max HR
75 – 82% max HR
82 – 89% max HR
90 – 100% max HR
HEART RATE
142 bpm
ZONE 2 ✓
68% max HR
Perfect effort — keep it here.
42 min in Zone 2 this session
HOW RTB COACHES YOU
Real-time guidance, every pedal stroke.
Pair any ANT+ or Bluetooth heart rate monitor. RideTheBound reads your HR every second and displays which zone you're in. When you drift above Zone 2 on a climb, a live coaching cue nudges you back before you blow your endurance base.
EVERYTHING YOU NEED
Zone 2 training, built into every ride.
Live HR Guidance
Real-time feedback tells you when you drift above or below Zone 2 so you can adjust your effort instantly.
Works with Any HRM
Pair an ANT+ or Bluetooth heart rate monitor. Chest straps and optical armbands both supported.
Automatic Zone Calculation
Enter your max heart rate once. RideTheBound calculates all five zones automatically.
Endurance Gains
Zone 2 training is proven to increase VO₂ max and fat oxidation over consistent sessions.
Session Time in Zone
After each ride, see exactly how many minutes you spent in Zone 2 vs. other zones.
Strava HR Data
Heart rate data syncs to Strava with every ride — full HR graph in your activity feed.
Ready to build your aerobic base?
Zone 2 is waiting.
Pair your heart rate monitor, ride real terrain, and let RideTheBound keep your effort exactly where it needs to be.