Bought this as an upgrade for my gravel bike. I was shopping for power meter pedals but the price of this Spindle system was just too good to beat.
SRAM doesn't really provide any installation instructions and the one video on YouTube was semi helpful but it didn't go into any detail. Make sure that if you have a spacer, to transfer it to the new spindle. I didn't even notice it was there on the original spindle so I had to remove it and install it all again! I also had some issues with a flimsy plastic cap on the BB so keep an eye on that when you do the install.
Once installed though, it has been awesome. Only complaint have been that the calibration step before each ride is kind of annoying and I've had it randomly stop communicating to my Garmin after a cafe stop one time but it finally reconnected after a few miles.
Accuracy seems decent compared to my Zwift trainer and pairing it to my Garmin Edge was super easy.
If you have a bike with Apex, it's a great upgrade to make to get more ride data!
love the options, but not the battery life. Many times this thing dies on me after just 1 hour and 15 minutes. It override the low light switch all the time witch drains the battery even faster. for this much money I demand better. I use a garmin head unit and radar tail light so this seemed like a no brainer, but I am going back to my cyclic head light. It's half the price and does everything this garmin does for twice as long. sorry garmin, you missed the mark on this one.
Finally picked up a radar taillight with the outgoing Varia RTL515 on discount and I have to say, I've appreciated the radar/light more than I thought I would. I haven't used it in the dark yet, so I cannot speak to the effectiveness of the tail light, but the radar function has made me wonder how I survived so long without one. I assume no bike radar is 100% perfect when it comes to picking up cars, but in several weeks of usage, this model has been probably 99% accurate. Get yourself one before they're all gone!
Interfaces with radar/light unit, easy on/off mounting (came with numerous mounting options). Good battery life. Like the feature ability to track fellow riders over busy courses (e.g RAGBRAI type events).
