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The power meter is useful?
Power meters are emerging high-end bicycle components in recent years, even in the top level of cycling in Europe, power meter applications are also popular in the professional teams for nearly ten years
Heart rate training of the old school, the user's heart rate very easily with the slope, wind speed, air pressure, temperature, humidity and other environmental factors, or rest, recovery, and other physical factors and changes in sleep changes; for example, assume that the premise except temperature are consistent with other external factors, such as the hot environment under 30 DEG C, heart rate than 16 degrees higher scores jump, factors affecting the data change too much, let the heart rate in the actual competition and training reference value becomes very small; for example that the night before his girlfriend went to your home, or call your bestie online watch a pioneer, Lulu to 3. The second day morning training as usual, there will be no go. Heart rate
The actual measured by the power meter, the user can measure the actual output, you can also record every time interval training, every game, every training Zhou Zhenshi training intensity and so on. The power meter can be reduced when training some uncertainty, so that users can more accurately track the strength and progress of training.However, the power meter itself does not improve the performance of the rider, it is a tool, not a panacea. If the user can reasonable matching power throughout the network training courses, can be easily to "break", "endurance" and "cruise" and a series of riding ability to refine the training alone, scientific degree also is unable to compare heart rate training.
The power meter into the competition will be more intense competition for the boring game, only need to know several numerical each other, like in the other head hung up the "blood", "slots", more easily develop a variety of combat games; the sky team in the tour de France, West by the power meter, "as you pull up, I sat at the table steady catch", is a typical symbol in the competition in the rational use of power meter in the Pearl River Delta; domestic amateur road race, is not difficult to find, and the use of power meter top players, accounting for improving constantly.
The main structure
power meter, originated in the last century in 90s, after decades of development, the current market to claw, crank, pedal, axial (axis, drum).
The internal structure and operation
The common crank type power meter, essentially consists of a series of tension, through the crank deformation measurement, the rider force size, and then through the magnetic induction element or accelerometer, motion frequency detection of the rider "(e.g., cadence), then the electronic component receives and processes the signal transmission to the table for the above, the rider view.
Bicycle power meter have been developed for many years, and each brand product line has been in the elaboration, but there is one thing, there has been no change, that is the price. Power meter price is very expensive, and most spend several big, even tens of thousands of price to income bursa, why need to need so expensive?
The front also mentioned, power meter is composed of a power supply, processing, transmission, tensiometer, accelerometer (or magnetic sensors). The overall clear division of components, and they have also been repeatedly design, limit the volume, reduce the weight into some bicycle accessories (such as crank, drum, which a disk, claw). Friends may wish to consider the high precision electronic components of the original brick size, without losing the accuracy, efficiency and performance under the premise, compressed to within the claw disc, the cost of development.
The installation of X-POWER Dura-Ace FC-9000 Shimano power components of the non drive side crank
X-POWER power meter components used almost readily available CR2032 "button battery", depending on the battery brand, the ideal environment to ride long use of about 150 hours, standby time of up to one year. For work environment temperature of minus 10 to 50 degrees Celsius, waterproof IP66, can prevent the intrusion of foreign bodies, and can withstand strong water, no harmful effect components.
Equipped with X-ray POWER POWER module 6800 crank and ordinary 6800 crank, there is no difference on the appearance, XCADEY team leader also laughed said "beep" is not enough, will in future be attached to the X-ray POWER sticker, let the user according to the hobby paste in the crank, frame, etc.
Bring 6800 crank without POWER module (left), containing the X-ray POWER POWER module of 6800 crank (right).
Name, side crank in 197.5 grams of 6800 non driving without power module, side crank in 205.8 grams of 6800 non driving and contains X-POWER power module, if we ignore the weight difference between batches of Shimano crank, X-POWER power module with a battery less than the official expressed 11 grams.
If you have at the same time, before the choose and buy, also need to use a L 6 mm Allen wrench, used to determine the clearance between the frame and a crank, whether to have enough space to install X-ray POWER POWER module.
Three-quarters in the axis of the side of the crank to pedal shaft position, use common measure 6 mm Allen l-type wrench clearance, like figure on the TREK DOMANE SLR, also has a lot of margin; Advice, hexagonal and frame, keep the space of 2 mm and above, in response to the frame stress when the traces of deformation. At the same time, due to the side of the crank with X-ray POWER after POWER module, about 4 to 5 mm of the bulge, partially used five bottom place hidden clamp device, the bottom of the five straight mounted frame will not be able to use, select before need to be careful.
With X-ray POWER POWER module of the drive side of the crank, installation and general crank is consistent, does not need to in order to ensure data accuracy, and the use of precise torsion lock.