FYI

Difference between Geoid 500 Crankset and Magene PES505 Crankset

1. The Senicx PR3 crankarms are slightly more outwards curved, while the Magene PES505 are straight and run diagonal between spindle and pedal eye. I always had issue running a 105 Di2 or GRX 12s Di2 FD, because it was rubbing against the driveside Magene arm in the bigring and high gears. Only solve was to use an Ultegra Di2 FD. With the Senicx there is way more room.

2. The Senicx PR3 Crankset that comes with the Geoid 500 has about 3mm shorter chainline than the Magene PES505! I now have the issue that my 34 inner ring is only 1 mm away from the chainstay. With the Magene arms I has about 4 mm of space to the frame.

Tomorrow I'll try to see if the Geoid Spider has a different chainline from the PES505. But I suspect not.

Do you know if it is possible to change the crank length of my PES505 by buying some Senicx PR3/PR4 cranks?

Has anybody else had any calibration issues with their unit?

When I first received the power meter, every time I calibrated it, it gave a calibration value of 10-12. The power numbers it gave were reliable and as expected.

However, after a few months the battery started to run low and so I charged it back to 100%. Since then, it has given calibration values of 14-16 and has given me much lower power numbers (40-50W lower).