I have a SRAM RED crankset with the hidden bolt design. Can I use a SRAM or Quarq power meter spider on it?

Unfortunately not. The current generation SRAM and Quarq power meters aren’t compatible with the hidden bolt cranks as the offset has changed on the power meters.

 

Option #1 – For 3-Bolt Direct Mount Cranksets

power2max NGeco SRAM Road Power Meter

The power2max is one of our go to power meters for SRAM cranksets. It’s a superb power meter in that it’s accurate, extremely durable, measures the power from both legs, is reasonably priced and allows you to keep your current SRAM crankset.

Sigeyi AXO SRAM Road Power Meter

The Sigeyi AXO has become one of our best selling power meters for SRAM cranksets. Just like the power2max it’s accurate, durable, measures the power from both legs and allows you to keep your current SRAM crankset. Additionally, Sigeyi power meters are at lower price point, making them one of the more affordable spider based power meters we offer.”⁠

Please note, in order to use these power meters, your SRAM crankset must have a removable drive side crank arm and use the 3-bolt interface (pictured below).

 

Option #2 – For 8-Bolt Direct Mount Cranksets

If your SRAM crankset uses the 8-bolt interface (more likely), you have two options:

1.) You can try to locate an older version power meter spider that fits the hidden bolt design (they are not being made any more so we don’t stock them).

2.) You can upgrade your cranks and bottom bracket to the new standard which will fit the current generation SRAM and Quarq power meters. We sell everything you would need to do this.

 

Option #3 – For 1-Piece Cranks (Pictured at top)

If your SRAM Red crankset uses a 1-piece driveside crank arm and spider (as pictured at the top of this article, it is physically impossible to install a spider-based power meter like power2max, Sigeyi or Quarq. In this case, this article would explain your best power meter options: What power meter will fit my SRAM RED 22 crankset?