Please Help Diagnose my SRM problem

Velo08 said:

2 Months ago - new battery in PC and PM. Fast forward 1500 miles......

Yesterday...all fine through 30 miles of my ride. No power readings (but HR/Cadence/Speed) in the small chainring.....so, I just big ring for the next 30 mins.

Then, the power readings in the big ring are REALLY low (approx 50% low) for the remainder of the ride.

What's up? I re-set the Zero offset and everything seemed fine. Sensor is un-moved.

Thanks for any head's up on what the problem might be.

1. What's your zero offset number? If it's under 100, It might be time for a battery change.

2. Is your sensor adjusted correctly close to the crankset?

Robin

nrhorwitz said:

1. What's your zero offset number? If it's under 100, It might be time for a battery change.

2. Is your sensor adjusted correctly close to the crankset?

Robin

1) 384. That's usually about where it is. I never knew a low number would indicate battery wear. That's very good to know.

2) It's basically within 1-2mm of the PM as I use the Competitive Cyclist mount clip.

What is odd is the lack of ANY power reading in the small chainring prior to the number going low on while riding in the large chainring.

Thoughts?

Velo08 said:

1) 384. That's usually about where it is. I never knew a low number would indicate battery wear. That's very good to know.

2) It's basically within 1-2mm of the PM as I use the Competitive Cyclist mount clip.

What is odd is the lack of ANY power reading in the small chainring prior to the number going low on while riding in the large chainring.

Thoughts?

If I were you, I'd just contact Leslie Klein at SRM and they'll help you diagnose the problem.

Sorry I'm not much of help 🙁

check also if the slope number on your PC is the same with the PM.