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    Chain ring size

    hi looking at changing my front chain ring on my Bosch cx on a cube reaction. Currently has 15t. My commute is pretty flat and keep running out of pedal speed. I see they do rings from 14t to 22t what can I swap to without getting a longer chain? Thanks
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    Crank creak Bosch cx motor

    hi all Need a bit of advice from you technical chaps. I have a cube reaction 400 less than a year old and it has slowly developed a creak from the crank on both sides, more noticeable on the left arm. It is slowly getting louder and becoming annoying. A Local cube dealer has had a look and can't...
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    Battery size help please

    Hi all I have trawled through the forum pages and cannot find a definite answer. So if some could just put me right it would be appreciated. I have a good condition 36v 10Ah battery off my broken sirocco and wish to move this and some other bits onto a cheap lightweight hybrid for work. I intend...
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    motor clicking fault

    Hi All any chance of a bit of technical advice I purchased a kit from BMS (500w rear hub 36v- no battery) I have a second hand electric bike and fancied upgrading it as a project for off road purposes. wired it all as per diagram but when I operate the throttle all I get is a clicking sound...