Araña para medidor de potencia SRAM Red AXS E1 para platos con montaje roscado

The Thread Mount Power Meter Spider is what we recommend to Red AXS riders who are training seriously but didn't spec power at the time of their build. The installation is clean — it goes in where the standard spider was — and the hardware disappears into the crank visually. You're not adding a pod, a pedal spindle, or anything that changes the feel of the bike.

MagicZero is genuinely useful in practice. Most riders either forget to zero before a ride or do it inconsistently. With this spider, the calibration happens automatically in the background, so the data you collect is reliable without requiring any pre-ride routine change. For athletes using power for structured training, that consistency matters.

The 200-hour CR2032 battery is one of the overlooked advantages of this design. Rechargeable power meters are fine until you forget to charge them the night before a long training block. With the CR2032, you replace the battery every few months and don't think about it otherwise.

One thing worth knowing: this is a spider-based meter, so it measures total power at the chainring interface rather than providing independent left/right power balance. For most training purposes — threshold work, intervals, race pacing — total power is what matters. If you're specifically looking for bilateral power asymmetry data, a pedal-based system would serve that need better. But for the Red AXS rider who wants accurate, clean, low-maintenance power data, this spider is the right tool.