- Garmin speed/cadence sensor on MTB
Just ordered an Edge 500 and along with a HRM it comes with a speed and cadence sensor. Not bothered about cadence but apparently the speed sensor is useful when riding under tree cover.
The whole thing looks fairly fragile and though it mounts to the chainstay it would appear that even a bit of mud on the spokes might pull it into the wheel.
Does anyone here use it on a mountain bike and have you had any problems?
Dave.Posted 5 years agoshedfullMember
I wouldn’t use it on an MTB. The speed data you get from the GPS is rarely very bad under tree cover anyway and the chance of the unit getting clagged with mud or kicked into the wheel is so much greater than on a road bike. The sensor has to mount on a chainstay and the speed sensor is the arm that pokes out towards the wheel, very close to the spokes. You tend to have more float on mountain bike SPDs so it’s very easy to clout a heel on the sensor, push it into the wheel and rip the arm off.
The cadence data it will give you on an MTB is mostly useless as it will show peaks and troughs of pedalling and freewheeling.Posted 5 years agoscotroutesSubscriber
As a distance counter it will be more accurate than the GPS, especially if the trail you are on has lots of switchbacks. If you’re not using it for cadence and you are worried that you are losing speed/distance data then you could always attach it to your forks/front wheel instead. I think that’s a lot more bother than it’s worth though.Posted 5 years ago
The cadence data it will give you on an MTB is mostly useless as it will show peaks and troughs of pedalling and freewheeling.
I can confirm this. Totally invaluable on the road, but erratic to say the least off road. I used the cadence feature on the MTB to raise my cadence after a knee injury. Helped fix the knee and left me with a great spinning technique 😉Posted 5 years agostumpy01Member
I had the cadence/speed sensor fitted to my Inbred for over a yr which I used on & off road with 2 sets of wheels.. The speed magnet was fitted to the road wheels (slick tyres mtb wheels) just because.
Someone on here advised me that I would get better accuracy off-road using the speed magnet when I moaned on here about a constant error with distance on my Garmin. Turned out a s/w update cured it.
With respect to damage, I had no issue with the cadence sensor getting whacked or dragged into the wheel. It used to get clonked a bit when swapping wheels, but it was always fine.Posted 5 years ago
The topic ‘Garmin speed/cadence sensor on MTB’ is closed to new replies.