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why wont bike company's post stuff from Germany or want stupid postage prices for 1 euro spacers gets on my tits lol.

bosch use can bus so as soon as the power is cut to most of there bms boards it kills them as want you to buy another batt than have them recelled not very green is it lol :rolleyes:

lucky for you the controllers can now be bought but there £210 if that is the problem. https://www.ebikemotorcentre.com/product/yamaha-printed-circuit-board/

this is the controller inside the motor. it could be that giant capacitor has gone bad and needs replacing but dealers will only replace the hole motor.

the batt and the motor talk to each other so if there is a fault either end it will stop it from working but as the batt is charging and the display comes on and tried a spare display does not leave much left to check bar the main power cable to the motor as some have had problems with these on...

hard to say with no error codes but if the batt and display is working then it could be the controller in the motor that has a fault. are there any local dealers that you could take it to and get a diagnostic report done?

https://www.evwest.com/catalog/product_info.php?cPath=8&products_id=297&osCsid=811eea8490e17c58151da80b2369c797

the bbshd is bigger i think with a more powerful controller tho you can get a 750w and overclock it if you get the programming cable but this is where you need to know what the cells you have in the pack are as pull to many amps from cells that cant handle that amount and kaboom. even if you...

if you want a 1000w mid drive motor a cheap non branded batt is not going to cut it if you want to get any range out of it at speed. https://ebikebatteries.co.uk/product-category/ebike-battery-pack/hailong/52v-hailong/ im sure they can get hold of what you want and give warranty but imo it...

dont do any of that with my bosch batts tho if the bms does die it is a bin job bar salvaging the cells in it. now this is a real bms ;) https://www.batrium.com/collections

i found this looks like a copy of a haibike sprocket still not cheap but less than half the price of the haibike ones but only in 18t https://www.pro-cycling-golla.de/18_Z%C3%A4hne_f%C3%BCr_Haibike_XDuro.html

eagle sprocket. normal sprocket.

:p

look what i found :cool: https://www.tiendamtb.com/en/bosch/1660-spacer-for-bosch-chainrings.html

when i run 2 sprockets on the front i have to use a brass washer in the ses wheel so it can move in and out. and dont ride it if it is loose as you will damage the splines the sprocket fits on 2.

it is just the paint coming off they will all go like that as i have 2 with the same wear on them

that spacer is way to thick as the sprocket is pushed to far out.

https://affordable-solar.co.uk/product/wind-turbine-2-megawatt-low-wind-spec-complete-kit/ :p

i sold that thing a long time ago, atm i have a 20t ktm sprocket about 12 quid ;)