Power training using Sigma Rox 10.0 algorithm - no actual power meter
07-14-16, 04:13 AM
#1
Newbie
Thread Starter
Join Date: Jun 2016
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Power training using Sigma Rox 10.0 algorithm - no actual power meter
Hi all.
I ride using the Sigma Rox 10.0. It has a power option that calculates your power using certain variables - weight, height, cadence, bike weight, shoulder width...
1 - How reliable would these readings be?
2 - How would I be able to train using these readings?
3 - Should I even bother trying with just using there Rox? (Need to save a lot of cash for an actual power meter!)
Thanks
I ride using the Sigma Rox 10.0. It has a power option that calculates your power using certain variables - weight, height, cadence, bike weight, shoulder width...
1 - How reliable would these readings be?
2 - How would I be able to train using these readings?
3 - Should I even bother trying with just using there Rox? (Need to save a lot of cash for an actual power meter!)
Thanks
07-14-16, 10:09 AM
#2
Generally bewildered
Join Date: Aug 2015
Location: Eastern PA, USA
Posts: 3,037
Bikes: 2014 Trek Domane 6.9, 1999 LeMond Zurich, 1978 Schwinn Superior
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1152 Post(s)
Liked 341 Times
in
251 Posts
This review suggests that the Sigma Rox power estimation is not particularly accurate compared to a an actual power meter. BTW, the word you want is accurate: "reliable" relates to durability.
You can train without either. If you want to get a general idea of what your power output is, I suspect that the Rox will be fine. If you are training to ensure you make it into the next TdF, and you use power algorithms to help you, then I think you want to shell out the bucks. But again: you can train without an on-board power meter. Eddy Merckx did.
You should always try, whether you have a TAP, or a Sigma Rox, or a wristwatch that helps you time intervals. I use a Garmin XT940, and the Garmin software estimates my average power. The Sigma Rox sounds like it uses more inputs to get a more accurate estimate. If you are averaging 16mph on an hour-long circuit with lots of hills for your training (about what I do) the estimate is probably fine. If you are doing 20mph on that same circuit and want to get to 21, the power meter may help you do that over a period of months and may be worth it to you.
But for heavens sake, keep training while you save up for the power meter. Use the Rox metrics to see if they help you any.
You can train without either. If you want to get a general idea of what your power output is, I suspect that the Rox will be fine. If you are training to ensure you make it into the next TdF, and you use power algorithms to help you, then I think you want to shell out the bucks. But again: you can train without an on-board power meter. Eddy Merckx did.
You should always try, whether you have a TAP, or a Sigma Rox, or a wristwatch that helps you time intervals. I use a Garmin XT940, and the Garmin software estimates my average power. The Sigma Rox sounds like it uses more inputs to get a more accurate estimate. If you are averaging 16mph on an hour-long circuit with lots of hills for your training (about what I do) the estimate is probably fine. If you are doing 20mph on that same circuit and want to get to 21, the power meter may help you do that over a period of months and may be worth it to you.
But for heavens sake, keep training while you save up for the power meter. Use the Rox metrics to see if they help you any.
