I found the regen section very interesting. If I read it correctly you seem to be saying that the regen terminals on the controller read 0 to 5v to give progressive regen, even on models where EM say you can only have fixed regen. Am I right?
Having not ridden with PRB, but liking my FRB, my ideal solution would be to keep the FRB as-is, but add a little bit of regen on throttle closed like the Dragonfly has. There are occasions when I find the EM a bit too free running. This is all on a '21 ePure Race BTW.
I'm not sure the USA is actually excluded. Google Play auto-detected my location and I was able to load the app on an Android phone (but not an Android tablet). I was not willing to give EM my phone number just for a "look-around." You can get a pretty good idea what the app does from the sample screens.
My real curiosity is about the hardware. The 2023 controller has a different part number than earlier models. I'm wondering if Bluetooth capability has been integrated into the controller or if an external dongle will be required? The controller has a 3-pin CAN bus connector and a 4-pin USB connector that are presently unused.
My guess is that for marketing reasons EM will only make it available on the 2024 Comp model for now, and then possibly make it available to other models later.
I also wonder if the present exclusions have to do with working out data privacy or other legal issues for certain counties?
It would appear it only works on the 2024 ePure Comp. From "About this app"...
With the app, you can:
- Customize your bike's settings to match performance to the terrain and your riding style. By adjusting the throttle, regenerative braking, power, or activating the TKO function, you can create your own riding style.
- See all your bike's important data live: battery level, engine speed, map engaged. Your smartphone becomes a real dashboard
- Lock your bike. Prevent your bike from being used at the touch of a button.
- Access historical data such as the number of riding hours or battery cycles.
- Contact sales or after-sales service directly from the app.
Congratulations! Your solution was exactly what I tried back in 2014. Since then, however, I have come to understand that pre-powering the fuel pump is not necessarily beneficial to starting. OSSA/Kokusan Denki "baked that into the cake" when they determined the start-up fueling.
I wont argue with your success, but if you have difficulty starting the bike under actual use conditions, or just want to learn more about the system, these pages are relevant to my findings:
Somewhat related, I recently watched this Stark Varg video, where they describe how power, (virtual) engine braking, (virtual) flywheel weight, and traction control can all be controlled by the owner. I would like to openly invite Electric Motion and Mecatecno to take the same approach with their electric trials bikes by enabling owners to control these 4 capabilities in some manner.
The red screw at the bottom is compression damping. There is no mention what, if anything, that other screw (your green arrow) does.
Damping adjusters all work in the same way. The number of clicks/turns out from the lightly-seated position (fully clockwise) determines the damping. The more clicks/turns out, the softer the damping.
I generally unscrew the adjuster fully, counting clicks from fully seated, to determine the maximum range of adjustment possible.
Don't be afraid to experiment. Just make sure you know the starting point so you can return to it if necessary. Make notes. A sensitive rider may be able to feel a single click difference. But start by changing 3-4 clicks at a time so you can notice the change. Honestly, it's not insane to try the extremes of the range so you know what the adjustments feel like. Just be cautious when riding. Don't begin with your biggest obstacle.
EDIT: To develop a feeling for what the clicker do, I recommend Andy Ibbott's "Suspension Education Program." I talk about it a bit towards the end of this page: https://www.ossa-efi.com/home/chassis/marzocchi-forks
EM's marketing literature says, "New linkage ratio for 2023 improve rear-suspension performance and increase rear wheel grip in all situations." Maybe that's what you are feeling?
When you look at the part numbers for the dog bone and rocker, they are unchanged from 2022 to 2023. Perhaps the 2023's Reiger shock is a different length? Of course, it's possible they changed the swingarm or frame but I think that's unlikely and I did not bother to look up those part numbers.
2022 12TC02O-30108-01-00 $113.94 EM-RIGHT TIPPER
2022 8TC020-30111-00-00 $121.75 EM-REAR SUSPENSION LINK (2020-2021) Units 2
2023 12TC02O-30108-01-00 $113.94 EM-RIGHT TIPPER
2023 8TC020-30111-00-00 $121.75 EM-REAR SUSPENSION LINK (2020-2021) Units: 2
I guess it's also possible the 2023 dog bone is different but they don't yet have any to sell and that's why the parts lookup says (2020-2021) for that item. EM's parts lookup leaves much to the imagination.
Congratulations. Should have mentioned that the heat also degrades any locking agent that was present. I recommend using Red Loctite when installing new studs.
I've had excellent luck getting studs out of aluminum. The coefficient of thermal expansion for aluminum is roughly twice that of steel. Using this fact, I heat the aluminum with a propane torch. Then I apply a penetrating oil (like PB Blaster) while still hot where it can seep in. Depending on the level of corrosion involved, sometimes waiting is necessary and sometimes more than one application will be required. Removing the studs while hot is helpful.
This even works for a steel/steel thread like a spoke and nipple.
Obtaining longer studs is very doable. But you may have to resort to getting them out of China via eBay or AliExpress.
If you think it's an issue, then it's an issue. Personally, I'm a stickler for making the suspension work properly on whatever I'm riding.
I'm also in the US, and it's typically only 10 days shipping time. Splatshop's support and pricing is unparalleled. The price you see without logging-in includes VAT (which you won't pay).
Because I was applying to new plastics, I just used a household cleaner called Simple Green. That stuff will rapidly strip the oils from your skin! For anything more than a quick wipe-down, I wear gloves.
For those interested, I have built a website devoted to Electric Motion trials bikes. I intend it as a give-back for all the things I've learned via the internet over the years. There is no advertising or commercial content.
I sold my 4RT a few years ago but the service manual said Mode 1 (press small button) is for dry terrain. Mode 2 (press big button) is for wet terrain. I really could not tell any difference and removed the switch entirely, which locks the ECU in dry mode.
Technical Resources for Electric Motion Trials Bikes
in EM (Electric Motion)
Posted · Edited by konrad
You are correct.
In fact, I tried that exact approach. I called it the hybrid design. Have just added a photo to the write-up. Here is a direct link: https://www.electricmotiontech.com/home/em-epure-race/regen-experiments#h.mz8dt9a6u3e