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i assumed i could use an RD-9070 and a FD-9070 temporarily. I’ve upgraded the firmware to the newest however there’s no response from either FD or RD. I cured it by backing off each limit screws – the high limit screw was nicely baked out actually.
A used replacement half off ebay could be the potential cheap resolution. I first used a SM-BMR1 battery mount and solely the front derailleur worked. It could not be up to date using the SM-PCE02. I suspect that to update the SM-BMR1 you need the Sm-PCE1.
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Seems ok now and E-TUBE shows the right actual sprocket selected. So, i ordered a new one, and now the PCE-02 wont even acknowledge the SM-BMR2. It goes through the process of attempting to acknowledge the system, then just goes again to the house web page of e tube. THis occurs both when i hook up with the whole system through the shifter or on to the battery mount . Once the lever is pressed the voltage rises by, I suppose zero.three to 0.5 volts on the wire.
I found my rear derailliuer was drawing 2.0mA . Changed the derailliuer and all okay since. You might always check the voltage drop twice a day for a number of days, this will point you to the faulty merchandise. As your battery is dropping rapidly, it should be quick to pin level the problem. Mine was not and it seemed like a battery problem . It could possibly be that there’s a difficulty together with your shifter button or wiring, nevertheless it’s more doubtless that the derailleur is the problem.
Automatic trimming of the entrance derailleur place because the rear derailleur moves forwards and backwards between the smaller and larger gears. This eliminates unintended contact between the front derailleur and the chain. Greatly improved shift high quality, particularly for the entrance derailleur chainrings, allowing shifting under full power with nearly no likelihood of a dropped chain. Yes, you possibly can disconnect and take away the entrance derailleur with out problem and the rear will still work.