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  1. poekie68

    Bottom bracket cartridge ST1, original and alternatives?

    The bottom bracket cartridge of my ST1 has been replaced at +/- 10000km. This is the type which is installed now (running for 6000 km now): RPM BB-7420; BC 1.37x24T, shell 73, spindle 138.5 Is this the same as the original bottom bracket cartridge in the ST1? This bb cartridge is very...
  2. poekie68

    Freewheel ST1, original and alternatives?

    The original freewheel on a Stromer ST1 is: Sun Race MFEX9-9AU 9-speed 11,12,14,16,18,21,24,28,32 T Experience with possible alternatives? Tnx! Willem
  3. poekie68

    Change tire size in controller ST1

    Hi, Today I have changed my original tires after 15000 km with the new Continental Top Contact II 26 x 2. They are 0.5 smaller than the original Schwalbe Big Bens. Can I change in the computer/controller unit the size of the tires to have an accurate speed and distance indication? What would be...