Speed and cadence with 4iiii

Kauto5

Hi all,

I have a Garmin speed and cadence sensor on my bike currently and I'm looking at getting a 4iiii left crank power meter. Would I still need the separate speed and cadence sensor or would they be redundant with the power meter?

I will continue to use my Garmin edge 130 plus but was unsure about what it will use as the primary input for speed and cadence if I have a power meter as well as speed and cadence sensors. Thanks!

harry-s

The PM will send cadence data to your Garmin but not speed.
I'm not familiar with that Garmin unit but I'd guess you may be able to set it to use GPS based speed if you wanted to ditch the speed and cadence sensor.

N0bodyOfTheGoat

4iiii gives cadence and power readings.

I don't know if it's the cheapest place, but ~£189 for the 105 Precision 2.0 (175mm only, others £240) at Merlin before using a loyalty reward discount voucher is a bonkers bargain.
https://www.merlincycles.com/4iiii-precision-r7000-105-powermeter-259005.html

https://www.probikekit.co.uk/cycling-power-meters/4iiii-precision-2.0-3d-power-meter-105-r7000-black/12104435.html £230 for common road sizes.

If British Cycling 10% discount is allowed on power meters (I know it isn't on turbo trainers), ~£213 https://www.halfords.com/cycling/bike-accessories/cycling-technology/power-meters/4iiii-precision-105-7000-power-meter-234214.html

bobones

Just use GPS for speed. I ditched my Garmin speed sensors a few years ago and haven't missed them once. 4iiii will do cadence as others have noted.