Garmin's Edge 305 is purpose built for cyclists and automatically measures speed, distance, time, calories burned, altitude, climb and descent, and records this data for review at your convenience. For extra-precise climb and descent data, the Edge 305 also incorporates a barometric altimeter to pinpoint changes in elevation.
The Garmin Edge 305 is very easy to install. No calibration is required it just snaps into the bike mount and is ready to go.
Its highly sensitivity GPS receiver tracks your position even in tree cover and canyons.
Virtual Partner lets you race a virtual competitor over a specified distance and speed.
Courses let you race against a previously recorded workout so you can compare your current and past performances over the same ride.
garmin's unique Auto Pause pausess the timer when you slow down or stop and resumes when you speed up again, so you can focus on your ride while Auto Lap automatically starts a new lap each time you pass a specified location or travel a preset distance.

GARMIN EDGE 305 GPS w Cadence Heart Rate Monitor
GARMIN EDGE 305 GPS w Cadence Heart Rate Monitor
   US $219.99
GARMIN EDGE 205 305 605 705 RIGID CARRY CARRYING CASE
GARMIN EDGE 205 305 605 705 RIGID CARRY CARRYING CASE
   US $32.00
NEW GARMIN EDGE 205 305 605 705 HANDLEBAR BIKE MOUNT
NEW GARMIN EDGE 205 305 605 705 HANDLEBAR BIKE MOUNT
   US $12.95
6ft USB Data Cable Garmin Edge 205 305 305H5 305HR GPS
6ft USB Data Cable Garmin Edge 205 305 305H5 305HR GPS
   US $2.80
BENNETT DVD GARMIN EDGE 205 EDGE 305 N1333DVD
BENNETT DVD GARMIN EDGE 205 EDGE 305 N1333DVD
   US $20.91
for GPS Garmin Edge 205 305 305HR Leather Case Bag Clip
for GPS Garmin Edge 205 305 305HR Leather Case Bag Clip
   US $9.99
Garmin Edge 305 GPS Receiver w USB Cable AS IS
Garmin Edge 305 GPS Receiver w USB Cable AS IS
   US $102.50
GARMIN HEART RATE MONITOR FOR EDGE 305 705 COLORADO NEW
GARMIN HEART RATE MONITOR FOR EDGE 305 705 COLORADO NEW
   US $50.00
Garmin Edge 305 Cycling Computer with GPS
Garmin Edge 305 Cycling Computer with GPS
   US $127.50
Garmin Heart Rate Monitor Forerunner Edge 50 305 405
Garmin Heart Rate Monitor Forerunner Edge 50 305 405
   US $41.50
GARMIN EDGE 205 305 605 705 HANDLEBAR STEM BIKE MOUNT
GARMIN EDGE 205 305 605 705 HANDLEBAR STEM BIKE MOUNT
   US $14.00
Garmin Forerunner Edge 301 205 305 Mobile 10 AC Adapter
Garmin Forerunner Edge 301 205 305 Mobile 10 AC Adapter
   US $27.00
Garmin Edge Bike Mount for 205 305 Handlebar Bracket
Garmin Edge Bike Mount for 205 305 Handlebar Bracket
   US $12.95
GARMIN EDGE 305 705 SPEED CADENCE SENSOR REPLCMNT PARTS
GARMIN EDGE 305 705 SPEED CADENCE SENSOR REPLCMNT PARTS
   US $12.90
Garmin Forerunner Edge 301 205 305 405 AC Adapter
Garmin Forerunner Edge 301 205 305 405 AC Adapter
   US $24.00
Garmin Streepilot Edge 305 DC CAR CHARGER WITH IC CHIP
Garmin Streepilot Edge 305 DC CAR CHARGER WITH IC CHIP
   US $7.99
Garmin Edge Bike Handlebar Mount for 205 305 605 705
Garmin Edge Bike Handlebar Mount for 205 305 605 705
   US $3.00
Garmin Edge 305
Garmin Edge 305
   US $102.50
GARMIN USB MASS STORAGE PC CABLE EDGE 205 305 605 705
GARMIN USB MASS STORAGE PC CABLE EDGE 205 305 605 705
   US $20.99
GARMIN USB PC CABLE FOR EDGE 205 305 605 705 NEW
GARMIN USB PC CABLE FOR EDGE 205 305 605 705 NEW
   US $20.99
Garmin Edge Bike Mount Models 205 305 605 705 NEW Model
Garmin Edge Bike Mount Models 205 305 605 705 NEW Model
   US $11.50
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The Garmin Edge 305 can come with a heart rate monitor, speed/cadence sensor, or both. These wireless sensors use ANT+™ technology to send your workout data to the Edge unit.

Edge 305 + heart rate lets you measure your heart rate and monitor time spent in your heart rate zones with the lightweight, comfortable heart rate strap.
Edge 305 + cadence lets you monitor your pedaling cadence and velocity as you ride with the self-calibrating, wireless speed/cadence sensor that attaches securely to your bike. You can even use it to train on a static trainer indoors as the sensor attaches to the spokes on your rear wheel.