Connecting a Data Logger to a Triumph Daytona or Street Triple (2013-2023 models)

This applies to anyone looking to connect an AiM data logger to the CAN bus of a 2013+ Triumph Daytona 675, 2013 – 2022/3 Street Triple, Daytona 765, and possibly other Triumph motorcycles (a friend did it on his 2020 Speed Triple).

For anyone interested in connecting a lap timer with data logging capability (capturing throttle, gear, RPM, etc.), you’ll need to connect to the CAN bus of the bike. If you’re using AiM products (Solo 2 DL, EVO4s, EVO5, MxM, etc.), you have a couple of options. AiM offers an OBDII harness but they also have a harness with bare ends. I had initially used the harness with the OBDII connector but the problem was that the stock connector doesn’t have a ground connection (on the Triumph side) to power the AiM device so I added a ground pin to the Triumph side of the connection. Doing this created a new problem–the power portion of the Triumph connector was connected directly to the battery (unswitched) so the problem could be that if you forgot to disconnect the AiM hardware at the end of the day, you could run your bike’s battery down. My fix as to add a relay to switch the the ground leg that I had added with the ignition (I used the +12v on the license plate light circuit to switch the relay and hence power to the AiM device). Last, another problem was that when taking the bike to the dealer for maintenance or to have the bike tuned, the mechanic would have to disconnect the AiM harness because they use the ODBII port to connect to their systems. One time they forgot to reconnect the AiM harness and I was missing data and power for the AiM logger.

Eventually, I got the AiM harness that had bare ends. The bare ends harness has CAN high and low as well as power leads without a termination. Using Posi-Tap connectors (so I didn’t have to cut the stock wiring harness) I connected the CAN leads (blue and white) to the backside of the OBDII wires coming out of the connector and the power and ground to the license plate light circuit. This solves all the issues I had using the OBDII harness–power is switched, it leaves the OBDII diagnostics connector available to technicians, and it eliminates the switched ground relay, and it wakes up the AiM Solo 2 DL and charges it when the bike is running.

After you have those connections made, you can route the other end of the AiM harness under the seat, under the tank, and up to the upper triple clamp where you can mount the Solo 2 DL. I’m a big fan of RAM ball mounts for this kind of stuff so I have a steering stem ball and an oval plate RAM ball mounted to the back side of the S2DL bracket and a short arm to attach it.

Then on the configuration of the AiM hardware, select the Triumph Daytona (Keihin) ECU for the 2013+ Daytona. This ECU profile includes throttle, gear, RPM, intake air temperature, coolant temperature, ignition advance. It does not include brake pressure data.

If you carefully slide the boot back on the Triumph OBDII connection, you can tap into the red (CAN + / high) wire and the blue (CAN – / low) wire. I ran my AiM harness through the boot with the stock wiring to try to keep the installation as tidy as possible.
This is the 2-conductor circuit for the license plate light circuit. Again using Posi-Tap connectors, I was able to get switched power for the AiM Solo 2 DL without cutting into the stock harness.

The 2023/24 Street Triple uses the now de facto Euro5 red connector and I haven’t done an installation on one of those yet but the connection would be similar, you would just have to find the CAN high and low in that connector and then connect to a switched power circuit. The part that would be interesting to see is if the same AiM ECU profile still works. If someone has the latest Street Triple and would like to check, I have all the parts to check it, I’d be curious.