lostrack wrote:I tell you what guys...
DON'T STAND UP!
the reason you can't use a fast pickup motor for mountainbiking at the moment, is the power is so instant, you can't stand up while riding it.
I tried it on my 3220 RC setup (dialled down to 160 amps) and it threw all my weight to the back, which then made me turn the throttle more (think : the angle of your hand on the grip!). It's a real struggle NOT to flip over. Brakes VS motor are pretty well matched, so you need real control to keep it on track.
The only way I found to do this, was to sit down on the saddle - and who does this when riding a MTB on a downhill course?
I have a speed throttle which is rediculously twitchy. The RC CA setup may help
Kepler wrote:So How does a torque throttle actually control torque? Our do you mean Current throttle?
recumpence wrote:I have built some seriously fast bikes myself. My yellow trike in twin motor guise ran 0 to 70 in 4 seconds consistantly (as long as I was on fresh pavement for decent hook). It has a voltage based throttle. Yet, it was docile to drive if care was taken. I have no problem with voltage based throttles. I think much of the difficulty is the componentry used in the throttle.
One thing I do not like about current based throttles is the amount of throttle jockeying required to maintain speed in varying gradients. I live in a hilly area. I love approaching a hill at a given throttle and watching the bike maintain constant speed up the hill without added input. A current based throttle requires additional input (alot of input) to maintain speed up a hill. Of course, that is preference, however. A current based throttle maintains a constant draw which should be a bit better for longer range. So, they do have their merrits. I just want people to know voltage based throttles are not inferior, just different and, if setup properly (and controller setup properly), they are docile too.
recumpence wrote:Actually it was 70mph (110kph).
I would pedal twice to get the trike rolling and nail the throttle.
You are correct about hand position while standing off road. That is a good point.
toolman2 wrote:0 to 110kph in 4 seconds is incredibly quick (do link us up with the info if you could recumpence, i missed that too) but yes lostrack that is well spotted, you cant really whiskey throttle a recumbent or a car, as you dont tend fall back and add more..
when, like you say you can just nail the throttle after 2 pedals, and 4 seconds later your merrily doing 110kph, then its clear you are not suffering from the affliction.
-good point also with the thumb throttle, they do seem to help.
sn0wchyld wrote:+1 on keeping it exposed... ive ridden through creeks, in the rain, yada yada etc etc. no probs for the controller. Mine hasn't been specially sealed either other than the 'water catch' area formed by mounting it upside-down on the down tube. a good drip loop helps too.
Any chance we can get some more vids of this bike in action? its kind of the Lamborghini of the ES bikes right now... and we all love to hear that engine purrrrr.... or rather..._______........
that's supposed to be silence. but its kinda hard to type the sound of silence .
Users browsing this forum: solarshift and 9 guests