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  1. sandyman44

    Bosch Gen 4 - How to change the chainring?

    I did the job with the 2ft breaker bar and a 1/2" hex-end socket set ALLEN KEY / HEX BIT SOCKET SET US PRO TOOLS 1/2" Drive 4mm to 17mm 3383 | eBay. Bike propped in corner against wall so it can't go forwards, right foot on right pedal, full weight, then transfer 1/2 weight to left foot on...
  2. sandyman44

    Bosch Gen 4 - How to change the chainring?

    yep, I was pretty sure that was how it worked, just wanted to see if it was that. as there is no definitive manual for this exact setup that I can find. I've got some 1/2" drive hex bits on order now, so I can connect them directly to my breaker bar, waiting for those to turn up before trying...
  3. sandyman44

    Bosch Gen 4 - How to change the chainring?

    thanks, that is what I was afraid of. if it was a wheel nut on the car, I'd use a 2 foot breaker bar as the wrench and stand on the end (holding the bonnet or roof for stability). Achieving the same leverage on a bike is a lot more difficult. any tips? need to stop the crank moving as well as...
  4. sandyman44

    Bosch Gen 4 - How to change the chainring?

    can anyone give any tips as to how to get the cranks off bosch gen4 ebike? I have a scott genius e-ride 2020. The website spec says the cranks are SRAM X1. they are certainly SRAM. I want to change the chainring (currently has SRAM direct mount boost 34T) to a smaller 30T. I have bought raceface...
  5. sandyman44

    Bosch CX gen 4 chainring nut

    thanks. we're on exactly the same thoughts - I need to use emtb or turbo for my knees to cope with a 50-60 cadence up a hill. I'd rather be in eco or tour at 70-80 cadence to ride with non-motor family. If I am by myself doing a "downhill bombing session" then I emtb or turbo it up the hills at...
  6. sandyman44

    Bosch CX gen 4 chainring nut

    hi looking with interest at your pictures, what spider and chainring do you have please? was it with your bike as stock or did you change it? I have a scott E-ride with bosch gen4. comes as stock with 34T sram x-sync2 direct mount, Boost chainline. I want to fit a smaller chainring, ideally...
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