I have seen talks of using the size 6 in the 2013 models.
I couldn't see how the 2013 works up to now but have some experience with the 2012 and have done some thoughts what will happen if you try. I don't talk of can the motor sustain he current, is the belt able to withstand the force... I have no idea of it.
I see some serious problems with the new bluetooth!
I have to start with some basics of the Sevcon.
It has 3 tables inside to set the driveability profiles, its torque, neutral regen, braking regen, direction change regan... and all have rump (up and down) speeds and other parameter too.
The 3 profiles are named Baseline, Driveability 1 and Driveability 2.
Baseline is the setting that has the highest values you want in your system.
The two Driveability normally can only have lower values, if not they are limited by the Baseline profile.
Sevcon use at 2012 and I guess at 2013 the Baseline as SPOT-mode and Driveability 1 as ECO.
ECO has higher neutral- and brake-regen settings, therefore they do a reprogramming of the Sevcon on the fly!
The MBB send the password to the Sevcon read out the regen values and the ramp time. If it is different to the SPOT/ECO switch it will reprogamm the values STORED IN THE MBB
and close the reprogramming. If the switch is conform to the setting it will leave it untouched.
I believe the bluetooth is done in the same way only the values in the MBB are settable now (why to reinvent the wheel). BUT you can't change the max/min limits there, so it will be exciting to find out what the bluetooth will do with your new settings if you try to replace the Sevcon by a Size 6!
The only way I see at the moment (having never seen the programming of a 2013 nor the schematic) you can use a special software setting inside the Sevcon so it will not limit the Driveability 1 / 2 settings, than if you lucky and they still use Baseline and Driveability 1 you can use the Driveablity 1 input port and change it to Driveability 2 (it can be done in the Sevcon setting) now you can tune your settings in Driveability 2 without interference by the MBB; but SPORT mode will be as it was.
To do the hard way and hack the MBB to get control of the Values would be Fu... dangerous I would never put my life on such a bike
. Maybe Harlan as a premium dealer will get save updates for a “tuning kitâ€. I am curious to see when he will come up with something like this but maybe the motor will not be able to hold and it will always be a dream?
If someone has more knowledge of it or ideas, questions I would really like to discuss it.
BTW it will not only be a topic with the Size 6 even if you would like to change something in the Size 4 it will maybe interfere. So does anyone know what values the bluetooth really change at the 2013 model.