Maybe that’s the limit at how the internal clock can send events or something like that.
But there’s a way to play at twice (and half, and…) the speed in sequencer options (shift+page = scale). I don’t remember the biggest multiplier but I remember seeing a 2X so that would give you 600bpm.
that would take away from the max pattern length right?
so 4 bar 300BPM @ 2x = 2 bar pattern
I guess with conditional trigs I could bring that back up to 4x
I want to listen to the reslut of this! 
An alternative is to use an external clock.
you know any MIDI clocks that are 300+ BPM?
Also possible to use 2 tracks, one of them is shifted half step triggering the same voice so we are at 1200 bpm. And still the option of using arpeggiator.
More good ideas here…
Sorry for the minor hijack, but how about the limit at the other end… any reason a lot of devices don’t go lower than 30 or 40 BPM?
The Synthstrom Deluge. 1-10,000 BPM. Yep.
I think Ableton can reach 999 bpm.
You can also use CV to MIDI devices I guess.
need fully OT solution
gonna play with RYTMs internal settings before looking at gear
cant find any midi clocks that are over 300 BPM
What is your target bpm?
360-460
I guess some resampling could be used… Sample breaks at 460 bpm and use slices on a track played at twice speed for instance.
Not that you can also chain patterns to reach the 64 steps at twice-speed.
You have a retrig on each step, that also retrig the amp envelope (accessible through microtiming menu, @sezare56’s favorite ): that could be used for repeated hits (such as hats maybe).
…what is this?
the more bpm the better…?
300 bpm as the inner max definded speed is made by decision…
u can always double up scale behaviour…and if 600 bpm is still not fast enough for u guys to come up with some decent music of any kind, well than slave them by anything that goes beyond…
all machines will follow strict orders, once be told to do so…
but whatever ur sonic content might be…beyond 1000 bpm it becomes one tone for itself again…
no groove left to dance to, i’m afraid…
so grooves and soundscapes to move along with in any human fashion, ain’t sellin’ no more in the days of doom?
is that it…?
IMHO it’s a technical reason to make sure that the processor can keep up doing its job even in the most busiest case (tons of MIDI messages coming in and going out + a trig on every step of each track + all effects in their most time consuming setup + the user hammering the controls).
By taking care of such edge cases and don’t burden the user with balancing the workload they can guarantee a rock solid device. IMHO especially for a live instrument this is a must-have.
…no technical restriction…only musical decison…while yes, somewhere u have to draw the line…
Are you wanting to make some extratone tracks? Usually done in a daw. The volca kick has a mode that will allow absurdly high bpm. 999 I think.
Yeah midi bandwidth consideration as @tnussb said, consider a few channels each with an event on the same step, bearing in mind midi is a serial not parallel protocol, then add in timing clock, then it is easy to see why designers set the limit at 300bpm.
Of course they weren’t probably thinking about “black midi” 
Deluge can indeed go insanely fast (and slow), but try it with a bunch of midi tracks and you will almost certainly get hung notes or lockups on external synths. I like that it can do it though 
Monotribe with midi mod can go very fast too.
btw, in one of the latest Elektron videos they also talked about how fun it was to run their own sync protocol with Overbridge 1 @ 999bpm and see how stable it was, but they had to limit it later on.
Some midi processor like midipal / midibud can change multiply or divide clock.
I think I’m ok with 300 bpm X2. Sometimes I use bpm to tune retrigs / delays and that kind of stuff.
103.125 bpm corresponds to A 440 Hz for instance. 103.1 on OT is actually 103.125 bpm btw…
The Untold Truth About Octatrack Tempo