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[Specter]

So it's 18 F degrees out.  Ride anyone, yah, no thanks.
but on that.
lets say i was at the track, the bike sat out overnight, so basically my pack was around 20 degrees F, well below freezing.

what would the bike do, for those who are in cold climates normally.  would it even start, would it sit in limp mode until it warmed up / what.
Curious now as i do plan on riding some colder days.  perhaps i should keep it trailered on cold ass nights instead of sitting on the paddock under a canopy.

Aaron

[DerKrawallkeks]

I did ride at around 0°C battery temp and it rides just fine.
Power is reduced significantly.

Below 10°C charging does become really, at 0°C charging is only 1 kW I think, so barely charging at all.

[Specter]

so, expect major power curtailment until the battery warms up a bit.  kind of thought it'd do that but was wondering if you get much below freezing, lith chemistry about stops, will it just say, nope, not doing that, or will it attempt just very weakly.
thank you for the reply

aaron

[Fran K]

 would it even start, would it sit in limp mode until it warmed up / what.

I don't have an energica.  The Can am won't let you charge below 37 F or so.  It will operate lower but no regen and reduced power for a while.   The Ktm if reasonably high charge level starts out with reduced power after a while turn off the key and back on and it is full power but if you use it hard it derates again.  I would guess maybe use it for 15 minutes then charge it and kind of be like normal.

[Stonewolf]

Fun fact, Energica's bad thermal performance is an advantage in cold weather. As long as the battery is warm enough to charge if you can get a decent rate up you'll heat up the battery and it then struggles to dissipate it (though it does do so faster in cold conditions). If you keep it in a garage and the garage interior stays above freezing it should basicly be fine though with ambient temperatures that cold you're gonna freeze the battery if you actually take it out.

I just wouldn't bother riding tbh.

[Specter]

oh im with you on the ride.  when its that cold i won't ride on the track, too fkn cold, even with warmers the tires are cold after a lap, you are freezing, yah thats a recipe for becoming the next lawn ornament, no thanks.  The bike is probably going to be in some sort of limp mode anyways so it's not like you will be setting any records, unless you are shooting from how quick out of the paddock until you runoff time

I was just curious if anyone actually had ridden in such extremes, what the bike actually did.

thank you

Aaron

[Demoni]

The parameters for the corsa package allow for maximum current draw to a higher temp vs that of production bikes. However below 40F both the corsa and production settings will limit max discharge and charge (regen) values.
In addition operating a lithium based battery pack at low temperatures reduces efficiency resulting in a noticeable reduction in range.

Due to the mass of the battery once its cold it takes a long time to warm back up, just like once it gets hot. We never ran the race EVA with battery temps below 10C (50F). Thankfully we only experienced low temps once during a testing event in November at Button Willow CA, where temps dropped to ~35F overnight. We had to wait till the afternoon before the battery got within it's optimal operating window. Preventing the battery from getting cold soaked in the first place is going to be the best bet. A small electric space heater in an enclosed trailer might be enough?

Honestly running in the cold sucks. Even at a A group pace you will struggle to put enough energy into the tires to offset the energy a cold track will pull out of them, assuming the warmers were able to get them up to operating temp in the first place.

Stay safe in the cold! Check your tire temps and pressures and adjust as needed, hope you own a non perforated leather suit.

[Specter]

non pref suit,  umm no but, the full body racing suit/ undies under it help and actually, the white disposable shit, i can't think of the name of the material now, tyvek?  suits you can get work wonders.  i used to wear them all the time on the plant when i had to work outside in the shitty cold or rain, they really help keep the heat in but you can overheat and sweat really quick so gotta keep an eye on that too.

Ive left the bike out in the cold, and woke up to 37 degrees, yah, f that.  ill ride it easy to get some heat into the battery pack, mainly to get the temperatures evened out in the batteries, so it charges properly, otherwise it can cause issues if the cell temps are spread too far.  once its gotten a few decent laps and temps on the battery are coming up a bit, and tires got some heat ill put some ass into it on the straight runs to bring it to a better operating temp.

you are absolutely correct, you are not going to be able to put the heat into the tires that cold to keep them right, so riding like you are running warm / hot is asking for a lowside after a lap or two if you think they are still hot.  unfortunately i see this a lot, people running off after a lap or 2 on turn 1, forgetting it's cold as shit, the track is cold and whatever their warmers did put in their tires, after 2 laps on that cold ass track, is now gone. zip.. tumble rumble into the grass, just don't go over the burm, that's about a 12 foot drop on the other side

tbh if it's that cold out, im usually too busy first session serving everyone coffee to be riding, let it warm up.  rain now ill ride in, thats kind of fun but cold... you can have that.

aaron

[jotjotde]

Just wanted to mention that with a cold battery you might not have regen. Probably, when the yellow blinking symbol gets white again, the battery is sufficiently heated up.

For me 5 degC is the limit for a ride. Layering clothes and having a windtight stuff on the outside is mandatory.
For Christmas I treated myself to a pair of heated pants (Macna), that helps a bit.
Driving slower also helps staying warm longer.

Changed my tires to Bridgestone T33 for winter/spring and they perform very well in the cold.
Never those damn Dunlops again!

[Specter]

have not tried dunlops but the pirelli's that come with them imo are garbage.  way too stiff for what the bike can do. even on the roads when not playing hard, they are goofy handling especially when colder out.

so far my Continentals have been performing really well in all sorts of weather and temperatures. plus since im not at a level yet where slicks are an absolute must, having the dot's the attack 2's  i can just change the pressure a bit and it's good for the ride up to the track, romping on the track, then the ride home.  just don't go on the track with what was a street tire primarily first.  That Florida Flat spot can throw you off leaning into turns with the bump bump over the edges.

it's been cold as hell here the past few days.  i threw a few of my bitcoin miners in the garage just recircing the air in there, the garage is about 82 and it's 22 out, so, bike toasty, ready to ride.... once it warms up a bit. that's too F cold for my wussy old ass

Aaron