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  1. T

    CYC PHOTON

    I'm even using 145mm short cranks (QX BlackZeroQ ISIS 145mm) on my Photon MTB. Takes a few rides to get used to it, but then I would not like to go back to longer ones.Nice clearance against ground, and good for high cadence riding. Pretty good matches characteristic of the Photon. Have to add...
  2. T

    CYC PHOTON

    @nervagon: I would also suppose: There is something wrong with your particular Photon. Similar as raylo32 wrote, I also only can hit thermal throttling when using throttle in race mode (2000W). When doing pedal assist on my MTB, I hardly come above 60°C. Yesterday for example, on a tour with my...
  3. T

    CYC PHOTON

    I would say the Photon throttle can be modulated quite well. When I was injured at one feet, I could drive on my EMTB next to my wife walking, and keep the slow speed with the throttle.
  4. T

    CYC PHOTON

    My experience regarding thermal throttling: When operating only pedal-assist, it is hard to each throttling at all. Even at the highest support setting I am using for eMTB off-road riding I always stay below 70C, maybe 80C in a very steep climb. Only when involving throttle, I observe the...
  5. T

    CYC PHOTON

    Thanks for the info regarding the spragg clutches. I disassembled cranks and chain wheel and checked the large sparagg clutch behind the chain wheel locking disk: This one is ok, it is the one that disconnects upon pedaling backwards. So the one not disconnecting correctly is that internal to...
  6. T

    CYC PHOTON

    I have a problem with my 2nd Photon MTB build: After less than 100km the motor freewheel seems to be non-functional. So now, if you pedal with motor disabled, you can hear and feel (resistance) that the motor is turned. Does anyone know this? Where is the motor freewheel located? Can it be...
  7. T

    CYC PHOTON

    For the case some users here still have the problem of a weird noise coming from the motor/controller when standing still and having the motor "armed": I found out that I had the lower value for the throttle not adjusted precise enough (had to raise it from 3.80V to 3.83V), then the noise...
  8. T

    CYC PHOTON

    I configured BMS to 2.5V/cell so 35V total, to protect the cells from damage. In the Photon I set low voltage limit to 38V, as I want not to use cells below 3V/cell -> total 42V, and then I subtract the voltage sag under heavy load (2kW) of ~4V, so resulting in 38V. But only tested it once, to...
  9. T

    CYC PHOTON

    The bike I converted (Canyon Nerve 8.9) previously hab a 3x11 Shimano XT. Now with the Photon the chain is straight when I'm on 4th fastest gear. Ideally it should be straight when being on the middle, I think, so the 6th fastest so to say. Currently I can shift in the smallest gear, but chain...
  10. T

    CYC PHOTON

    Thanks, that is exactly the information I was looking for. Agree to what you wrote: A disassembly must be possible. Will see now if some hacking can be done, to get the chain-ring some mm to the left. I have no spaces on the drive side, my bike has BB92 and spacer are only on the left side.
  11. T

    CYC PHOTON

    I also agree that the CYC implementation for switch race <-> is fine for many countries: If I'm stopped by police while driving in race mode, I just have to switch the bike off while stopping. When I'm then asked if this bike is in legal range (25kmh for Germany), I just have to turn in on, and...
  12. T

    CYC PHOTON

    I currently have a 34T and a 42T chain-ring. As for perfect chainline, I would need to get the chain-ring some mm towards the inner, I'm looking if the chain-rings can be disassebled and modified. The Photon chain-rings seems to be assembled from three pieces: - A kind of spider, that connects...
  13. T

    CYC PHOTON

    @raylo32: Yes, that battery is custom made: - 14s3p - 28x Samsung INR21700-50S 5000mAh - 35A - 14x LG INR21700-M58T 5570 mAh - 12,5 A - Daly 60A BMS with balancing an Bluetooth - rectangular cell arrangement 3x14 using 3x1 21700 cell holders/spacers Not really looking nice at the moment. Wrapped...
  14. T

    CYC PHOTON

    Also installed the new app and did a firmware update on the motor. For me, this removed the acoustic noise that came from the motor/controller when standing still and having the motor enabled. At this point I would like to give a word about using the Photon now for about ~300km: Until now, I'm...
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