Has anyone fitted the Rapibike Easy (not the Evo) module to their Strada? If so, is any improvement in fuelling worth the investment?
I haven't yet, but I plan to. I emailed RB and they confirmed that it will work with a hypermotard or hyperstrada. I read some reviews elsewhere on the internet that suggest it does improve low and mid range fueling.
Yes, I have fitted one on my hyp939. I like it, it does not eliminate the low-rpm fueling issue completely, but it certainly helps. If I had to put a number on it, I'd say you should expect about a 70% improvement in your lower rev range performance. It's supposed to work in the closed-loop range. I can't exactly recall what setting it's on, but I have left it on the stock setting and it has worked out well. I have not noticed an increase in fuel consumption, still get 40-45mpg. Installation can be a little tricky in the back, so take your time since there's very little space to work with, the front cylinder is a snap. Let me know if I can answer any other questions.
Thanks for this, I was wondering if fuel consumption would be an issue. Have you considered emailing Rapid Bike to see if they can suggest a different setting for you? I gather they are pretty helpful.
I was wondering about install, as I couldn't tell much online, so it connects to each cylinders fuel injector and bypasses the ECU it sounds like?
I actually like the current stock setting, it's a very similar device to what I had installed on my previous bike (BMW), with similar results and found the factory setting a good balance between low rpm improvement and general fuel economy.
It's not difficult to install, it's basically an O2 sensor cheat so to speak, and makes the ecu think it's colder than it actually is so it allows a little more fuel to enter the combustion chamber during closed loop operation.
It comes with all the wiring for both O2 sensors and basically piggybacks to both front and rear cylinder O2 sensors. The included instructions are not bad, but you just need to fiddle around to find the rear sensor connector. If memory serves, it's located behind the rear shock toward the throttle side.
I routed mine from the left side (clutch side) to both sensor connectors, but ymmv.
Hope this helps.
Ok that makes sense. This doesn't change the temp reading on the dash does it? I've seen more basic models that just bypass the temp sensor to fool the bike into thinking it is colder but those impact the temp readout on the dash.
No, it only affects the O2 data on route to the ecu. I'm probably not the most technically savvy person when it comes to this particular issue, but the main problem other devices have is that they don't work well in the closed loop portion. Meaning that the system eventually adapts to the new mixture, it's all part of having some control over emissions, and maintaining it. From my understanding, this is why most devices that try to address this issue (aside from the one we are discussing here and the like) usually do not succeed in the long run, but again, I could be mistaken here.
I personally don't like creating any extra pollution, but my wrist couldn't take it anymore and since I do ride in traffic, it was starting to border a safety issue. However, I do wish that Ducati would address this problem, if by anything, just allow more travel in the throttle to achieve the current increase in rpm for the low range.
Unfortunately with the ride-by-wire deal, you can't manipulate the throttle twist tube physically to achieve similar if not better results. But then again, when it comes to twins, this has pretty much been one of their Achilles heel's.
I read that they ditched Martinelli Magnetti for the 2019 and are now using Bosch which reviewers (who may be getting paid) have said address some throttle related issues. That said I've never had problems with the throttle being twitchy so much as I have with it stumbling and acting like a bucking bronco in 1st and 2nd at anything under 5k. For the price I think I'll try this out, particularly since fuel economy seems to not be impacted.
That actually is another byproduct of the lean fueling issue in the lower rpm range, and a big part of this problem as a whole imho, thre's very little between on and off so to speak.
If you'd said "under 3000K" I could understand - though I don't have much issue, but 5K? I'd look for the problem elsewhere.
I've mentioned it to the dealer a few times and aside from a pinched vent hose and a bad MAP sensor it's pretty much WAI. After the vent hose was fixed* (we never hooked the cannister back up) things improved a bit, and while it makes no sense adding the Termi slip on meant for the 821 has smoothed things out a shade. It's to the point that it is generally fine but not as smooth as the 821. I may go get a second opinion but I may also just try the RB and see how that goes.
Thanks for all the input. I pulled the trigger and purchased a Rapidbike Easy at a good price from a seller in Italy. I will post my impressions of it when I get it fitted and tested.
Netaron, do you have any pics showing where you installed the module in the underseat area?
Last edited:
Joined Sep 2017
595 Posts | 121+
Lansing Mi
i have been using the rapidbike evo for a year or so. They (rapidbike) says the 821/939 ecu is very finicky. There is 1 expert at rapidbike that knows the 821/939 inside and out and will work with you one on one if you have issues. He even went so far as to go into my laptop remotely while plugged into the EVO module to tune my bike. It was a multi layer process where he did it 2 times as we collected data.
You may choose to install it differently, but the gray plastic box is the actual unit.
Attachments
I fitted the Rapidbike Easy module to my Hyperstrada 821 today. It was a bit fiddly but I managed without removing any plastics or the fuel tank. The module itself fits nicely below the ECU. It took about 45 minutes and a bit of patience to thread the cables and connector plugs behind the rear cylinder. Will test it out once I have my new rear tyre fitted.
Last edited:
Glad you were able to install it without too much fuss. Keep an eye on your spark plugs (at least the horizontal cylinder) to see how she's running. I would check it now and check again after a couple hundred miles, and you can tune it accordingly.
Joined Mar 2013
3K Posts | 161+
Naples, IT
Dimsport now advertisers a "UP/DOWN SHIFT ASSIST" module. Description reads like the original quick shifter with the addition of auto-blip down shifts. Module in the pictures looks much different than quick shifter, which had some basic adjusters for load and up or down. Anybody got any insight on this? Can't tell if it's meant to work in tandem with quick shifter or is simply an upgrade.
Did you have to adjust the trims from the +1 and +3 settings suggested as default?
Similar threads
