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The Delfast Top 2.0 E-Bike (CleanTechnica Review)

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The Delfast Prime 2.0 E-Bike (CleanTechnica Evaluation)


Revealed on August sixth, 2020 |
by Kyle Subject

August sixth, 2020 by Kyle Field 

Only one have a look at a Delfast e-bike and it’s instantly clear that it isn’t your typical e-bike firm. In truth, the bikes themselves look and carry out far more like an underpowered electrical bike than a bicycle, completely destroying any semblance of a line between the bicycles and their new breed of electricity-powered beasts.

The Beast

Delfast despatched the Prime 2.0 my manner for just a few weeks for me to run it by the paces. When it confirmed up, I used to be grateful for the time I spent using gas-powered scooters round city in a former life, because the Delfast Top 2.0 carries itself far more like a bike than a standard bicycle. The only give away that it aspires to be an e-bike is the small set of pedals protruding from the aspect of what in any other case seems to be like a dust bike.

The Delfast Top 2.0 e-bike

The Delfast Prime 2.0. Picture credit score: Kyle Subject, CleanTechnica

Fortunately, the actual star of the present is the Prime 2.0’s 3,000 watt common / 5,000 watt peak motor and battery package deal. The mixture is in contrast to another conventional e-bike I’ve ridden thus far and carves a transparent path ahead for a brand new automobile classification of two-wheeled electrical automobiles that stay someplace between an e-bike and a full blown bike. At present, the Delfast Prime 2.0 is the closest to a moped, which lives between bikes and motor-assisted bicycles. These hybrids can have as much as 4 horsepower/2,984 kW and should have a set of pedals.

In many of the United States, the three main classifications of e-bikes are capped at a most motor energy of 750 watts, so proper off the bat, the Prime 2.0 is in a class of its personal.

After a brief dalliance with the pedals, we laid into the throttle and located the three,000 watt motor to be an absolute pleasure to play with. We blasted previous any and all prior speeds achieved on e-bikes right into a realm that had me wanting a extra strong helmet and a bike jacket. Make no mistake: a 3,000 watt common / 5,000 watt peak motor is a far cry from a standard e-bike in each manner. The Prime 2.0’s motor may be set to any certainly one of 5 ranges, with ranges that may be set at a contact of a finger from the handlebar-mounted controller.

The keys for the Prime 2.0 minced no phrases when speaking concerning the energy they unlocked. Picture credit score: Kyle Subject, CleanTechnica

On the stage 1 setting, the Prime 2.0 works far more like a standard e-bike, with a predictable and tame throttle response. The feeling is muted by the Prime 2.0’s heft, however we’re solely speaking about stage 1 right here. Scrolling up by the gears, the Prime 2.0’s handlebar mounted coloration show gives a number of related data together with vary, energy stage, pace, and extra. As you’d count on, the degrees step by step improve in energy till you get to stage 5. The vary of various energy ranges is useful as riders acclimate to the bike itself and the facility it lays down.

Stage 5 makes the huge hills in our neighborhood merely disappear with only a mild whir of noise from the onboard motor. Even the hefty weight of the motorcycle-quality bike and its huge 72V 48Ah Panasonic 3,200 mAh battery are not any match for the beast of a motor sitting on the rear hub.

The huge energy interprets to a high pace of fifty miles per hour / 80 kilometers per hour which is yet one more sharp deviation from the 28 mile per hour most pace allowable for any of the three classes of electric bikes with a throttle in the US. Even stepping as much as California’s guidelines for mopeds and we hit a agency most pace of 30 miles per hour, so we’re at one other no-go there.

Driving the Prime 2.0

Delfast works round this by slapping a cap on the highest pace in stage 2 at 20 miles per hour. I don’t know the way that may stand as much as authorized scrutiny, however I positive was nervous about taking it out on metropolis streets for any prolonged time frame. It seems to be like a bike, can take off like a bike, and is priced like a bike. Ranges 3 and up are technically for off-road use solely. It seems like a tenuous line to stroll, should you ask me.

Kicking the Prime 2.0 as much as stage 5 and laying into the throttle wakes the total energy of the motor up and had us flying round at speeds akin to what a gas-powered scooter may accomplish very quickly flat. It was frighteningly enjoyable and a bit scary on the similar time. It wasn’t the Prime 2.0’s fault, because it feels constructed for speeds like this. It was extra of my mindset than something. I wasn’t mentally ready or bodily kitted out to be ripping round at 40+ miles per hour.

At quicker speeds, the bouncy DNM RCP-2S shocks should be taken into consideration because the strong disc brakes carry it down from the heights quickly. The Prime 2.0 got here to us with the inventory bike type seat on it in addition to an elective bicycle seat adapter. Driving it on the bike seat was not very snug and even had the body rubbing up on the tires in a few of the extra excessive conditions we subjected it to. For taller and heavier riders, the bicycle seat adapter is an efficient guess because it lets your legs stretch out and makes for a extra snug journey total.


Up entrance, the Prime 2.0 sports activities a fantastic coloration show with a design that places each different e-bike and bike dashboard I’ve seen to disgrace. A pace indicator exhibits off the present velocity with the help stage seen off to the precise.

  • Vary per cost: 174 mi / 280 km
  • Max pace: 50 mph / 80 kph
  • Bike weight: 154 lbs / 70 kg
  • Capability: 298 lbs / 135 kg
  • Battery: 72V 48Ah 20S15P Panasonic 3,200mAh

One of many first issues that struck me concerning the Prime 2.0 was the alarm. It comes with a pair of key fobs that flip the alarm on and off, with the bike emitting ear piercing chirps with every interplay. Locking the bike with the fob engages the alarm, which units off an alarm that appeared to point the world was ending or some such emergency. We set it off a number of occasions accidentally and every time needed to scramble to search out the important thing fob to close it off. We ended up simply leaving the keys clipped to the bike, eliminating any profit that would come from the alarm, but it surely was the perfect worth proposition for us, all issues thought-about.

The Delfast Top 2.0 e-bike

Picture courtesy: Delfast

Vary is clearly a energy of the Prime 2.0, with a producer steered vary of 174 miles / 280 kilometers of vary per cost. We weren’t in a position to put this to the check, however in our testing, it was clear this factor has loads of battery capability to spare. Its battery is ready up as a 72 volt, 48 Ah system, constructed from Panasonic’s 3,200 mAh cells. Digging into critiques of the bike, vary has been a degree of rivalry, with one consumer seeing the vary lower from 124 miles/200 kilometers of vary when new to only 81 miles/130 kilometers of vary per cost.

The vary every individual will get depends upon terrain, rider weight, driving type, and extra, so this could possibly be an instance of a single misguided report or presumably a forecast of what homeowners can count on over time. Both manner, that’s nonetheless a large quantity of vary per cost for an e-bike.

Not Meant For Pedaling

Trying to pedal the Prime 2.0 round even a small stretch of road reveals how ineffective the pedals truly are at transferring the bike round. Positive, they may get it began from a cease, however it’s a problem to get its 158-pound body transferring a lot various miles an hour with the pedals alone.

There aren’t any gears to shift by, that means the potential of getting the Prime 2.0’s 158-pound / 72-kilogram body transferring at any affordable pace with pedals alone is totally impractical.


On the finish of the day, the Delfast Prime 2.0 is a blast to journey, due to its class main vary and energy. It singlehandedly charts the trail ahead for electrical bikes into a totally new classification that comes prematurely of acceptable automobile rules in a lot of the world. It’s a dialogue regulatory our bodies around the globe must have, however missing acceptable rules and because of the bike styling of the Prime 2.0, may go away riders with out many choices to journey it.

That is how change comes about. New applied sciences, new corporations, and new merchandise push the envelope of what’s attainable. Invariably gradual governments step by step choose up on the truth that one thing has modified and inside a decade or so, difficulty new rules to manipulate, limit, and body up a brand new set of parameters. It’s not probably the most environment friendly manner of ushering in new expertise, but it surely’s all we now have for now.

2-wheelers just like the Prime 2.0 push that envelope whereas charting out a path in direction of a cleaner, zero emission future. It’s not arduous to think about bikes like this taking up the obnoxious scooter market in Southeast Asia, providing silent using, zero tailpipe emissions, and extra enjoyment.

Delfast has since come out with the Top 3.0, boasting improved specs for a similar worth of $6,199.

Be happy to make use of my Tesla referral code to your Tesla Photo voltaic buy should you’re inclined to see if they’re a very good match. Presently, you’ll get a $100 reward for utilizing a referral code like mine. For those who use my code (https://ts.la/kyle623), I additionally get a reward from Tesla which assist us be extra financially sustainable right here at CleanTechnica.   


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Tags: Delfast, Delfast Top 2.0, Delfast Top 3.0

In regards to the Creator

Kyle Field I am a tech geek passionately in the hunt for actionable methods to scale back the unfavourable impression my life has on the planet, get monetary savings and scale back stress. Dwell deliberately, make acutely aware choices, love extra, act responsibly, play. The extra you already know, the much less you want. As an activist investor, Kyle owns long run holdings in BYD, SolarEdge, and Tesla.


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