Bontrager DuoTrap S Digital Sensor

[buckwhelk]

I'm thinking of installing one of these on my bike, I would appreciate feedback from anyone who is using one

Thanks in advance

[moonoi]

What do you want to know? It provides cadence and speed, if you don't want to stick magnets on your wheel you could use a Garmin sensor instead, one wraps around the front or rear hub for speed and the other around the left crank arm. Easily removable and transferable across bikes as well (if you have more than one), Wahoo also offers something similar to the Garmin system.

[buckwhelk]

22 minutes ago, moonoi said:

What do you want to know? It provides cadence and speed, if you don't want to stick magnets on your wheel you could use a Garmin sensor instead, one wraps around the front or rear hub for speed and the other around the left crank arm. Easily removable and transferable across bikes as well (if you have more than one), Wahoo also offers something similar to the Garmin system.

Thanks for the reply. At the moment I only want to know speed & distance traveled. I haven't ridden a bike in anger for more than 40 years and am just getting to know my bike.

[buckwhelk]

39 minutes ago, moonoi said:

What do you want to know? It provides cadence and speed, if you don't want to stick magnets on your wheel you could use a Garmin sensor instead, one wraps around the front or rear hub for speed and the other around the left crank arm. Easily removable and transferable across bikes as well (if you have more than one), Wahoo also offers something similar to the Garmin system.

I dont think i would need to attach magnets to the wheel as my bike is compatible with the Duo Trap and the literature says:

 

[moonoi]

If you don't have a computer yet suggest getting something like a Garmin Edge 25 which has GPS built in and will show you speed without any sensors on your bike

[moonoi]

The way the duo trap works is it detects a magnet attached to your rear wheel and your left crank arm to display speed and cadence.


Sent from my iPhone using Tapatalk

[buckwhelk]

19 minutes ago, moonoi said:

If you don't have a computer yet suggest getting something like a Garmin Edge 25 which has GPS built in and will show you speed without any sensors on your bike

Thanks I'll look into this model.

[buckwhelk]

17 minutes ago, moonoi said:

The way the duo trap works is it detects a magnet attached to your rear wheel and your left crank arm to display speed and cadence.


Sent from my iPhone using Tapatalk

Thanks for the clarification

[StreetCowboy]

I've just bought a bottom-of-the-range bontrager speedo so that I can keep an eye on speed as I'm riding - GPS-tracking phone stays with screen off in the backpack, to save battery.

 

On long rides, I over-cook the first quarter, and I'd like to bring my overall average up this coming year.  The problem will be the difference between the measured speed and the GPS speed...

 

SC

[moonoi]

I've just bought a bottom-of-the-range bontrager speedo so that I can keep an eye on speed as I'm riding - GPS-tracking phone stays with screen off in the backpack, to save battery.
 
On long rides, I over-cook the first quarter, and I'd like to bring my overall average up this coming year.  The problem will be the difference between the measured speed and the GPS speed...
 
SC

I haven't found there to be any real difference, but you can get a wahoo speed sensor that like the Garmin attaches to the hub and connects to your phone using BLE (Bluetooth low power) or ANT+ if you have an android phone that supports it.

[StreetCowboy]

4 minutes ago, moonoi said:

 

I haven't found there to be any real difference, but you can get a wahoo speed sensor that like the Garmin attaches to the hub and connects to your phone using BLE (Bluetooth low power) or ANT+ if you have an android phone that supports it.

 

For battery reasons I'd rather not look at my phone.  Also, there's no room on the handlebar, with my reflector and my bell and one or two light mounts.  The speedo will go on the stem, I believe.  (Yet to fit - I will have a look in the New Year.... probably...)

[moonoi]

For battery reasons I'd rather not look at my phone.  Also, there's no room on the handlebar, with my reflector and my bell and one or two light mounts.  The speedo will go on the stem, I believe.  (Yet to fit - I will have a look in the New Year.... probably...)

That's why I use a Garmin that has its own GPS and connects to my phone via Bluetooth for uploading data to the internet and so the Mrs can track my rides ;-)

I just meant that you can increase the accuracy of your phone in your pocket by connecting such a sensor if it concerns you that much.

Another device that is quite good is the Wahoo RFLKT which is basically just a low power display for your phone to save you battery whilst still showing you the info you want. It uses your phones GPS to display speed etc

[bobfish]

I use the Garmin Cadence Sensor, but binned the wheel speed sensor as it was randomly corrupting the speed information on my Gps's [510 and 1000].