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Bike Lights Cycling Cycling Computers and GPS Units

Shanren Technology – Miles cycle computer and the Raz Pro taillight

We buy brands that we are familiar with. Our own internal biases, influence and advertising drive us to the names that we know, like and trust.

When a new name pops up, we might avoid it and wait to see if others adopt it. Personally, I had not heard of Shanren Technology and fans of Kickstarter and cycle products launched there, may be far more familiar. We were sent the Miles cycle computer and the Raz taillight.

Let’s start with the Raz Pro taillight. This is a super-impressive light – for any time of day and for any time of the year. There is 60 lumens of brightness from the 12 LED bulbs in the device. Not only that, there are various light flashing options, 8 in fact, and the lights sense bumps in the road and braking and change.

Multiple lights can be used – says on on the seat post and the other on the back of your helmet – and as long as they are set on the same mode (of flashing), the synchronise. As I not-to-convinced Lumos helmet wearer, it’s great to be able to attached an extra light to my favourite lightweight MIPS helmet and gain extra visibility.

Auto-wake-up is another neat feature. Start riding and the light starts to flash. Using the Shanren Technology app – you can also customise the light colour, right across the spectrum – being careful of course to comply with your local road traffic and construction and use regulations.

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The Miles GPS sits at the budget end of bike computers. It has the claim of being able to replicate the rider’s power output by an algorithm calculating the power from the rider stats (entered into the Shanren Technology app) and the cadence.

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The Miles cycle computer pairing with the cadence sensor.

Using the bike computer, you can select if you are indoor, or outdoor riding and this estimated power feature, the winter months and riders turbo training on a budget – might just be a good feature.

For those with a power meter, they too can connect it to the Miles and receive and record power data.

As far as recording goes; the Miles does not map in a way that the advanced cycle computers do – as in, you can’t use it for navigation. What you can do is record your ride and upload your data to Strava. I did personally have a problem where my Strava account and the Shanren app would not talk. However, you can manually upload the file to Strava.

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The Shanren app enables you to personalise the computer’s functions, settings and your personal stats.
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The unit is relatively small and yet easy enough to read, without my glasses. It is charged with a USB cable (supplied).

The Miles also connects to the Raz Pro tail lights and provides some control over them. The Shanren mount is Garminesque and as you can expect, works really well, providing a solid mount, unlike the Stages cycle computer that we tested.

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Clear display that is customisable from the Shanren app.
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A brief stop whilst out on the road, to check the manual. Fitted in this test to my commuter bike.

Ease of use; the first time that I used a modern Garmin, it took some learning and this is often my complaint with many tech devices. The Shanren Miles just takes a few minutes of reading the small manual and playing around and you are good to go.

Shanren’s products are available from their website https://www.shanren.shop and Amazon.

Overall, a really decent GPS unit for those who want to record their cycling data and don’t want to spend the crazy amounts of money that modern cycling often demands.

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