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Old January 26th, 2019, 01:22 AM   #1
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Rapidbike Easy

Has anyone fitted the Rapibike Easy (not the Evo) module to their Strada? If so, is any improvement in fuelling worth the investment?
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Old January 28th, 2019, 09:27 AM   #2
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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.
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Old January 28th, 2019, 10:55 AM   #3
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I may pull the trigger on one soon. Will post a review if I do.
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Old January 30th, 2019, 06:48 AM   #4
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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.
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Old January 30th, 2019, 08:55 AM   #5
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Originally Posted by netaron View Post
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?
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Old January 30th, 2019, 09:42 AM   #6
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Originally Posted by N4teTheGreat View Post
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.
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Old January 30th, 2019, 10:43 AM   #7
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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.
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Old January 30th, 2019, 12:09 PM   #8
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Originally Posted by N4teTheGreat View Post
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.
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Old January 30th, 2019, 12:38 PM   #9
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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.
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Old January 30th, 2019, 12:43 PM   #10
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Originally Posted by N4teTheGreat View Post
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.
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