Moderator: Moderator Team
Christmas came early and I just received my long awaited set of Lightweight Obermayers. Just a quick question regarding the built-in magnet...has anyone had success using it with the Garmin Cadence/Speed sensor mounted on the non-drive side chain stay? Would very much prefer to use this versus a spoke-mounted magnet.
Appreciate any recommendations from fellow enthusiasts.
tcurtbike wrote:A magnet's a magnet, should work with any sensor.
Well, the magnet is located in the rim, not on one of the spokes. Alignment with the cadence magnet mounted on the non-drive crank arm is the issue since there is only one sensor for both speed and cadence.
Any thoughts from experienced Lightweight users?
- Best Freak bike poster
- Posts: 426
- Joined: Mon May 25, 2009 9:34 am
- Location: VIC, Australia
You don't need to be an 'experienced Lightweight user' to know that, just a bit of common sense.
Geoff wrote:I have always glued a magnet to the spoke on my LWs, as I don't want to mess-around with the sensor when I change to deep wheels. If all the magnets are in the same place, it is easier.
Agreed -- that's probably the only option I have as well since the built-in magnet is too close to the BB. Just wondering if any of the Lightweight users have successfully utilized the built-in magnet as designed. With the Ventoux, built-in magnet is installed in the spoke, making it much more versatile. What kind of magnet did you use?
nismosr wrote:congrats Tim ! when are we going to see the new wheels
Thanks Edwin. Maybe this weekend?
Northoceanbeach wrote:The magnets in the from right? How do you use it for a Cateye strada where the sensor mounts to the chainstay?
I believe the magnets are on the non-drive side.
it's better with devices that have doppler speed estimation, but small gps units usually don't have this, afaik none of the cycling-oriented gps units have doppler, nor any smartphone, instead they rely on a periodic join-the-dots approach, curves become a series of straight lines, i.e. shortened, accuracy gets worse as speed/curvature increase
typically the calculation is done in 2d, so gradient also affects accuracy, again the gps will read too low, even for movement in a straight line, it gets worse as gradient increases
if you want accurate speed (and distance), a device using wheel revolutions vs. time is best, as long as you do a rollout and calibrate to circumference
- Similar Topics
- Last post
- 1 Replies
- 334 Views
Last post by sungod
Wed Jul 12, 2017 4:12 pm
- 14 Replies
- 1511 Views
Last post by mike
Mon Jan 29, 2018 6:04 pm
- 7 Replies
- 909 Views
Last post by kgt
Mon Oct 30, 2017 7:47 pm
- 70 Replies
- 5296 Views
Last post by KCookie
Sun Oct 08, 2017 12:08 pm
- 5 Replies
- 695 Views
Last post by sungod
Sat Jul 22, 2017 4:07 pm