01-13-2018, 08:41 AM
(01-13-2018, 07:43 AM)Cormanus_imp Wrote: VLJ, I’m sure I’ve read somewhere that speed limiting bikes is mandatory in Japan and 180 kmh or 112 mph is the magic number. Of course, that may be an urban myth. If not, Honda has obviously decided not to remove the limiter for exports in spite of it being an affront to many past and present members of this forum.
I’m at a loss to explain any rev limiter, unless it cuts it at the red line where, presumably, manufacturers don’t want the engine to go.
The good news is that Don Guhl Motors, somehere in the USA, can remove both for you for a modest fee.
I know that avoids the question of whether they should be there in the first place; but, hey, they are.
The disappointing thing about writing this post is that it’s already your tomorrow here but I’m still going to have to wait an age for your impressions of the bike.
The speed limiter for Japanese Domestic Market (JDM) vehicles is not technically mandatory and it's not just for bikes. The speed limiter is voluntarily implemented on JDM vehicles by all Japanese auto and motorcycle manufacturers. As far as I know, there aren't any JDM vehicles that are not limited, although some sports cars can disable the limiter for track use.
Because the CB1100 does have a speed limiter that does kick in at 180 kph (111.8 mph), it is generally assumed that Honda decided not to remove the JDM speed limiter for export versions of this particular model. While this would be sales suicide if for typical sport bikes, I imagine Honda didn't think the target demographic for the CB11 would care much about it (and with few exceptions, I think they were correct).
As for rev limiters, the only one I'm aware of is the one that kicks in just before redline. I recall from the ECU flash threads that Guhl determined the rev limiter kicked in 500 rpm before redline, which is not unusual for a Honda (my old CB750 has a similar rev limiter). Performance-wise this should be a non-issue as engine power peaks and begins to drop off a good 800 rpm before the limiter kicks in.