Leaderboard

Gents, Thank you both for your thorough replies. You both jogged my memory a bit (the RB has been sitting on the bench a while waiting for the headers) and, indeed, the RBR does work off the two OEM narrow bands (On the Rapidbike/Cyclepro website, it does state you must use the RBR in conjunction with the OEM sensors if your bike's equipped with them). Other experience on this forum suggests run with wide bands only - via My Tuning Bike; apparently, as per Yaman, you can't hook the wide-bands directly to the RB module (from the RB.US website: "If the stock O2 (Lambda) sensor/s have been disabled by an ECU flash or with installation of a factory option race ecu or an aftermarket ecu then My Tuning Bike Module/s can be used by itself"). So, I think your guess is correct, Downhill, and you can run one MTB in addition to the two (or one) OEM narrow. Finally, just to be clear, the RB doesn't actually need to have a wide-band connected to work; it is designed to work with the OEM narrow-bands but just requires more KM/miles to dial in. The wide-band allows for more instantaneous feedback. CandyRedRC46 is one of the forum's resident knowledge boxes on all things RB, and there is a RBR vs. RB Evo thread here in the archives somewhere. Agree with Rush2112's observation the 12mm OEM narrow-band and 18MM wide-band bung combo are the most user friendly combo for many.

You are correct, sir... the Rapidbike can use the narrow band OEM sensors with a standard map or the upgrade Autotune with a wideband O2 sensor. Heh, heh, heh... Bung-holio!