What is the best Bosch CX Gen 4 firmware to avoid 504 errors on a chipped motor?
I have one bike with 1.1.0.0 and that got a 504 error. Another has 1.1.2.0 and no errors after 600km. Both have PearTune MSO 3.0 chips. Is it worth upgrading to the 1.1.5.0 firmware?
My current Focus Jam 2 has a 34T chainring. After 1800 km my rear sprocket needs to be replaced. This is because I tend to use the top few gears. I want to get a larger chainring so I use a wider range or rear gears. I was thinking a 38T. Would that be a bad idea? I don't know what mount...