Radian: The Future of Enduro is coming!

[Tim - Radian]

Hi fellow Electric Dirt Riders!

I’ve been on this forum for a few years now. In the background I have been working together with a passionate team of ex-Electric Superbike Twente members on a big project. I’m really excited to show you guys what we have been working on for these past 4 years. Follow our social media channels to stay in the loop. We will go live tomorrow at 14.00 CEST!
www.rideradian.com and Radian (@rideradian) • Instagram photos and videos

 

[Erwin P]

I have been invited to take a look at their bike and it's really legit

That's all i have to say about it until they release it tomorrow!

 

[Tim - Radian]

We're live guys! Hope you like it!

 

[Beagle]

Lots of interesting design choices in there

Radian EXR – Electric Enduro Motorcycle

70 hp electric enduro with 30-second battery swaps. InfiniPack system, 60-115 km range, 1060 Nm torque. Competition-ready from €14,450. Available Q4 2027.

www.rideradian.com

Real swappable batteries (two 22 kg modules of 4.3 kWh each) and charging outside the bike are game changers.
Storage space for onboard charger
Minimalist dash with companion app

For the spec geeks:
intended vehicle weight 125 kg
70 hp
8.6 kWh
production date aimed for Q4 2027
90 min 20-80% charging (3.3 kW charger)
KYB, Brembo...
Street legal in the EU
14 k€

Playing with numbers, battery configuration could be 80S6P with 5.0 Ah 21700 cells (nominal voltage 288 V, 8.6 kWh, 30 Ah)... except it's in 2 modules.
Electric wizards here surely know if it makes more sense to connect the modules in parallel or series. Assuming parallel, these would be two 80S3P modules with 288 V nominal voltage and enabling to keep riding if one module fails (alternatively, series would be two 40S6P modules with 30 Ah capacity).

 

[OpaTsupa]

Two modules make sense for ease of use, but it likely complicates many other things, not to mention cost.



This is very elegant.



Glad to see new contenders.
Timeline seems very distant.


It has side-mounted radiators.

 

[Erwin P]

The bike is a bit ''fatter'' than a Stark. In both a bit more weight as in the panels.

However the battery swap system is really clever. You don't need to lift it all the way out so you will just lift it when it's on top of the bike.
Also they left a lott of room under the seat where normally an airbox would be. And i mean A LOTT of room. I think one could have 2 spare tubes, tools and lunch in there. Or a charger unit.

This swappable battery's that you can also charge outside the bike + the room under the seat to bring stuff make it more ''leasure'' Enduro ready than the Stark is.
Sure the Stark is lighter and slimmer, but i've so far experienced that taking a Stark on longer Enduro rides is challenging and even the portable charger would be a pain to bring in a backpack on a more adventurous Enduro trip.

 

[fsfs]

Hi fellow Electric Dirt Riders!

I’ve been on this forum for a few years now. In the background I have been working together with a passionate team of ex-Electric Superbike Twente members on a big project. I’m really excited to show you guys what we have been working on for these past 4 years. Follow our social media channels to stay in the loop. We will go live tomorrow at 14.00 CEST!
www.rideradian.com and Radian (@rideradian) • Instagram photos and videos

View attachment 16566

Just curious... Is each "half pack" half the voltage and they are connected in series? Or is each half pack full voltage and they are in parallel?

 

[fsfs]

Two modules make sense for ease of use, but it likely complicates many other things, not to mention cost.

View attachment 16569

This is very elegant.
View attachment 16570


Glad to see new contenders.
Timeline seems very distant.


It has side-mounted radiators.
View attachment 16571

It depends on how they did it. If each "half pack" is full system voltage then it does indeed increase system cost and complexity. If each "half pack" is half voltage and they are connected in series, then the addition cost and complexity penalty is not so much.

For the RE Him-E each "half pack" is full system voltage. The bike basically has two battery packs in it.

 

[Erwin P]

Regardless. They now weigh 22kg each. Imagine that would be 42kg for one. Now lift that on top of the bike.
Also when building and maintaining the thing. 25kg is the max people are allowed to carry for their job in most EU countries. Coincidence? I don't think so.

 

[Theo]

I like it. It's a full size bike, which for some reasons the other manufacturers prefer not to make, and it has components from reputable makers.
The retail price is high but if the battery really preserves an 80% State of Health up to 2,000 hours of riding time (read it on their specification sheet of their website) it means that it'll last a very long time and running costs must be considered when talking about dirtbikes. In order to assess the cost of this bike even better, we should know how much that battery pack costs, in case one decides to replace it after those very long 2,000 hours.
I'd like to know about the warranty, too.

 

[Erwin P]

They sell an extra set of batterys incluiding charging station for €3450 wich is a tad cheaper than Stark's 1.2/EX battery.
To be honest i forgot what they told me about warranty, @Tim - Radian this is your cue to step in.

I wonder in what shape the bike would be after 2000 hours. Not that i'm doubting their quality, but most Enduro's look pretty rough after 200, let alone 2000...

 

[C5tor]

Love the swappable batteries and the smaller twin battery design. The charging cradle looks cool too. This addresses a lot of the range issues while riding/racing, especially if the second set of batteries can charge in under 90 minutes.

 

[fsfs]

Love the swappable batteries and the smaller twin battery design. The charging cradle looks cool too. This addresses a lot of the range issues while riding/racing, especially if the second set of batteries can charge in under 90 minutes.

For a race where you have to swap batteries it is a really good system. I would still want to be able to charge the battery inside the bike for when there is no need to swap batteries. I didn't see them charging the bike in any of the videos, though I assume the production version will have that sorted.

I'm curious on how valuable they/their perspective customers perceive an onboard AC charger to be -- and also a plug for DC charging.

 

[Erwin P]

They have a charge point like the Stark so you can just charge it like a Stark.
But having an easy option to charge outside the bike is offcourse great.

I have been doubting to do the Romaniacs but for that i would need multiple battery's. Wich i need a team for to swap, and do that all again during the night because you can't charge a battery outside a Stark. That sum left me to not do it.
With this method a privateer could do it if somehow they can buy/lend enough batteries. Also the team needs to be far less trained and can charge the batteries in between swap points.
Wich i would think is far more likely scenario.

 

[fsfs]

There is no electrical reason that the Varg battery cannot be charged outside the bike. Since there is no good mechanical option for battery swap, there is no market for an out of bike charger to battery adapter.

 

[Erwin P]

There is no electrical reason that the Varg battery cannot be charged outside the bike. Since there is no good mechanical option for battery swap, there is no market for an out of bike charger to battery adapter.

Let me put it differently. There is no simple way for a privateer to charge it outside the bike.

 

[OpaTsupa]

I'm curious on how valuable they/their perspective customers perceive an onboard AC charger to be -- and also a plug for DC charging.

If I'm reading it correctly, both are optional add-ons and either/or.

 

[fsfs]

If I'm reading it correctly, both are optional add-ons and either/or.
View attachment 16584

View attachment 16585

Ok, the photos don't specify one thing though. As shown, they interfere with the seat so you cannot carry them inside the storage space. I am assuming that this is just how it appears in the photo and that you can carry both these items (1 at a time) in the storage space as you ride. Radian, is this correct?

 

[Lost]

If this is going to be road legal, then it would be at the top of my list as my EXs replacement.

 

[Erwin P]

It will be street legal and those chargers are meant to be carried on-board is what they told me.