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“Trek Bicycle Corporation does not authorize our retailers to sell new or used Trek product over the internet or by mail order. Delivery should only be made to you at an authorized Trek retail location. This is for your safety. We want to make sure that your bicycle is properly assembled, properly adjusted, and is the right size for you. We also want to make sure that you receive your owner’s manual and consumer literature. Your dealer will also explain how to properly use your bike and answer any questions or concerns you may have.”

We think this is a good policy, for it means that you will receive good advice about the bike that's right for you, and take home an expertly serviced bike. Every bike we sell is not only fully assembled but serviced to a very high standard. As an illustration, we even remove the tyres and inner tubes so the wheels are properly dished and trued.
We also offer excellent after sales service, to include a second free service 6-8 weeks after the purchase of the bike.
This standard of service and peace of mind is all included in the price of the bike, and is not something that can be matched by mail order or internet sales.

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PRODUCTS » Accessories » POLAR » Heart Rate Monitors » POLAR RS300X Heart Rate Monitor

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POLAR RS300X Heart Rate Monitor

POLAR RS300X Heart Rate Monitor click to zoom image

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MODEL NAME: POLAR RS300X Heart Rate Monitor

PRICE: RRP £121.50
OUR PRICE £114.50

CARRIAGE: Add item to Shopping Basket to show carriage costs (you can easily remove it)

PRODUCT OPTIONS: Black
Description:
Speed, Distance, and Heart Rate

For recreational athletes who require all essential heart rate and timing features.

- Helps you train at the right intensity with personal sport zones
- The Polar Fitness test measures your aerobic fitness at rest and tells you your progress
- Displays calories burned

Body measurement features:
- Automatic age-based target zone – bpm/%
To help you train safely and effectively, the training computer determines your heart rate target zone limits automatically according to your age-based maximum heart rate (220 minus age). The limits are determined either in beats per minute (bpm) or as a percentage (%) of your maximum heart rate. See also Manual target zone.
- Average and maximum heart rate of each lap
- Average and maximum heart rate of training
- Heart rate – bpm / %
Heart rate is the measurement of the work your heart does. Heart rate can be expressed as the number of beats per minute (bpm) or as a percentage (%) of your maximum heart rate.
- HR-based target zones with visual and audible alarm
You can define your target zones for a training session based on heart rate to help define the right intensity. When you are out of the preset zones, the training computer will give a visual and audible alarm.
- HRmax (age-based)
The highest number of heart beats per minute (bpm) during maximum physical exertion. For a rough estimate of your maximum heart rate, subtract your age from 220. HRmax is a useful tool for determining the intensity of training as intensity zones can be defined using HRmax. Some Polar products define maximum heart rate during the Polar Fitness Test, see also HRmax (Polar Fitness Test -based).
- HRmax (Polar Fitness test-based)
Some Polar products predict your HRmax simultaneously with the Polar Fitness Test. This predicted HRmax value is more accurate than the age-based formula (220 minus age).
- HRmax (user set)
- Manual target zone – bpm / %
This feature enables you to define the target zone as you want and is suitable for your training. You can set the target zone for your training as beats per minute (bpm) or as a percentage of your maximum heart rate.
- Polar Fitness Test
Polar Fitness Test measures your aerobic fitness at rest in just five minutes. The result, Polar OwnIndex, evaluates your maximal oxygen uptake (VO2max). With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically and without any exertion. All you need is your training computer. The Polar Fitness Test is as accurate in predicting the VO2max as any sub maximal fitness test. The test is based on heart rate and heart rate variability at rest and personal information.
- Polar OwnCal® – calorie expenditure
Polar OwnCal calculates the number of kilocalories expended during training. This feature allows you to follow the kilocalories expended during one training session and cumulative kilocalories expended during several training sessions.
- Polar OwnCode® (5kHz) – coded transmission
Coded heart rate transmission automatically locks in a code to transmit your heart rate to the training computer. The training computer picks up your heart rate from your transmitter only. Coding prevents interference from other training computers.
- Polar OwnZone® – personal heart rate zone
Polar OwnZone® determines your personal heart rate limits for a training session. Depending on the day and time, your physical state may vary, for instance, if you are stressed or tired, or if you are not fully recovered from your latest training session, Polar can determine that information from your heart rate and guide you to your ideal training zone for that moment.
- Polar sport zones
Polar sport zones provide an easy way to select and monitor the intensity of your training and to follow sport zones based training programs. Training is divided into five zones based on percentages of your maximum heart rate: very light (50-60%HRmax), light (60-70%HRmax), moderate (70-80%HRmax), hard (80-90%HRmax) and maximum (90-100%HRmax).
- Training load – available via polarpersonaltrainer.com

Data transfer:
- Compatible with Mac (Intel-based) – opt. with Polar FlowLink
- Compatible with polarpersonaltrainer.com – opt. with Polar FlowLink

G1 GPS sensor features:
- Distance – training, lap, and total
Distance (km, mi) can be set and measured in several ways. Training distance tells you the distance travelled during a training session. Lap distance tells you the distance of one lap. Total distance is the distance accumulated since the last reset.
- Speed-based target zones with visual and audible alarm
You can define your target zones for a training session based on speed. When you are out of the preset zones, the training computer will give a visual and audible alarm.
- Speed/Pace – current, average and maximum

Recording features:
- Totals
Totals includes your training data starting from the last reset enabling you to follow your long-term training.
- Training files (with summaries) – 16
- Weekly history

S1 footpod features:
- Distance – training, lap, and total
Distance (km, mi) can be set and measured in several ways. Training distance tells you the distance travelled during a training session. Lap distance tells you the distance of one lap. Total distance is the distance accumulated since the last reset.
- Speed/Pace – current, average and maximum
Speed (km/h or mi/h) is measured with GPS, footpod, stride sensor or cycling speed sensor. Pace (expressed as min/km or min/mile) stands for the rate of speed. Pace is usually used in running. By setting a target pace, you can follow how fast you need to run in order to reach a certain distance in a predefined time.
- Speed/Pace-based target zones with visual and audible alarm

Training features:
- Automatic lap recording
With this feature you can set your training computer to take laps based on preset distance, for example, every 1 km/mi.
- Display zoom
Display zoom feature allows you to zoom in information on the display during training.
- Graphical target zone indicator
This feature points out graphically on the display the zone you are in during a training session helping you to stay on the desired intensity zone.
- HeartTouch – button-free operation of wrist unit
When HeartTouch is on, different training information during training can be accessed without pressing buttons, for instance, when gloves make pressing buttons difficult, by bringing your training computer close to your transmitter.
- Interval trainer guided workouts – heart rate / pace / distance
Create interval guided workouts based on time, heart rate, speed/pace or distance guidance with up to three linked timers or distances and up to three target zones.
- Number of laps – 99
- Time and distance based interval timers
Use timers, for example, as a training tool in interval training to tell you when to switch from a harder to a lighter period and vice versa. The timers can be time- or distance- based.
- User configurable displays – two lines
This feature allows you to configure training computer displays to show the information that you need during your training session. Configure the displays either in the training computer or in ProTrainer 5 software.
- ZoneLock
ZoneLock feature helps you to accumulate certain intensity. You can either lock a zone before a training session or during it by pressing a button when you are on the desired zone.
- ZonePointer

Watch features:
- Backlight
- Date and weekday indicator
- Display text in English, German, French, and Spanish
- KeyLock
By activating KeyLock, training computer buttons are locked, and accidental presses do not cause problems, for instance, during training.
- Time of day (12/24h) with alarm and snooze
- Water resistant – 50m

As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.