A Month On The Electric Bulls Cross E8 Wave. Bulls e bike

Fly Up and Down Trails on the Bulls E-CORE

Price: 5,999Weight: 50 lbs. (medium)Battery Capacity: 500WhMotor: Shimano STePS 250 watt/70 NmTravel: 150mmFork Travel: 150mmThe right bike for: extending your day in the saddle on trail rides with long, steep climbs

Despite recent improvements in the ascending abilities of longer-travel trail and enduro bikes, climbing usually comes second to descending prowess. Without the luxury of a chair lift, pedaling to the top of the mountain uses energy that could otherwise be spent on longer days in the saddle. For some, that’s just fine. For others, there’s the Bull’s E-CORE Di2 FS 27.5. It’s a 150mm-travel e-bike that can tackle big descents, rides great on flowier trails, and provides a generous boost for the trip back to the top.

The pedal assistance comes from Shimano’s compact STePS E8000 motor that weighs only 6.2 pounds and offers assist up to 20mph. Shifting is motorized too, with Shimano’s exemplary XT Di2 drivetrain providing the most precise and consistent shifts a mountain bike can have. The fun comes from the E-CORE’s 150mm of front and rear travel courtesy of a RockShox Yari fork and Deluxe RT shock. Both be locked out for on long, fire-road type climbs, though on an e-bike that feature feels less necessary.

month, electric, bulls, cross

Five Cool Details

Bulls E-Core Detail Gallery

Big Travel

The 150mm-travel rear suspension offers an extra smooth ride

Dropper Post

The RockShox Reverb dropper helps you descend more confidently.

Controlled Stopping Power

Magura four-piston front caliper provides greater control

Plus Tires

Schwalbe 27.5 Tires have good grip and low rolling resistance

Downtube Battery

Downtube battery placement distributes weight evenly.

The Bulls Family

In addition to the E-CORE family, Bulls offers seven other full-suspension e-bike models. The other bikes cover a range of categories—fat bikes, 29ers, women’s specific—and use most of the popular motor systems, including Bosch, Brose, and Shimano.

In the E-CORE line, Bulls offers the bike reviewed here, and one more option, the E-CORE EVO EN Di2 27.5, which has 180mm front and rear travel and costs and additional 1,800. This model uses a RockShox Lyrik fork, Fox Float X2 shock, DT-Swiss wheels, and Shimano Saint brakes that are better suited to downhill riding. Both versions of the E-CORE come with the Shimano E8000 drivetrain.

This content is imported from poll. You may be able to find the same content in another format, or you may be able to find more information, at their web site.

Light and Compact Shimano STePS Motor

The E-CORE Di2 FS 27.5 is built around Shimano’s STePS motor, which is one of the smallest and lightest (6.2 lbs.) available. It’s also one of the narrowest also, so the pedals are no further apart than they are on an acoustic Shimano drivetrain. With the STePS motor, this bike looks almost like a non-powered mountain bike, and a little less like some e-bikes.

The STEPS motor has three assist modes: eco, trail, and boost. In eco mode, the ride feels natural and almost as if there is no pedal assist. It won’t give you the power you need to get up anything extraordinarily steep, but it offsets the bike’s weight so riding on trails feels almost like any other bike. The trail and boost modes take the assistance up a notch for steeper climbs, or just more speed. There’s also a handy walk mode that helps you push the bike up steep or technical inclines that you can’t quite clean. It’s easy to toggle between the modes thanks to the switch on the left side of the handlebar.

The display shows the current assist mode, with a distinct color for each that makes them identifiable with a quick glance. It will also show speed, battery life, and current gear selection.

3 Great E-Bikes for Different Types of Rides

3,200 Benno e-Joy

So joyful! Looks like a vintage Italian scooter and is just as fun to zip around town on.

10,000 Pivot Shuttle

Skip the lift to ride up and romp down big mountains all day with this elite-level e-mountain bike.

4,650 Road E Pro

We rode our favorite local roads—and safely sat in group rides—with this smooth-sailing machine.

Tech to Compliment Shimano STEPS

The 35mm stanchions on the RockShox Yari RC help the fork from deflecting when you bang into rocks or send this 50 pounder off a drop. 2.8-inch-wide Schwalbe tires give extra traction and cushion without too much extra weight or rolling resistance.

Slowing this beast down is a Magura blend: a four-piston caliper up front, and a two piston caliper in the rear. The two piston rear caliper saves a bit of weight, while the four-piston caliper should offer more power and fade resistance.

The Di2 electronic drivetrain is powered off the motor’s battery, so there’s no need for a second battery, which saves weight and space. Plus, one less thing to charge is always welcome.

Ride Impressions

The E-CORE Di2 FS 27.5 is a long-travel bike with plus tires and burly components. Thought it looks like it’s ready for the burliest and most technical terrain, it works best on smooth and flowing trails.

On those trails, this bike was a blast. The boost and trail modes give immediate, powerful assistance as soon as you start to turn the cranks, and help make climbing almost as much fun as descending. The smooth suspension helped the Bulls fly through choppy sections with little trouble.

But while generous travel and e-assist would seem advantageous for riding rock gardens and technical trails, it was a challenge to ride them cleanly on the Bulls.

I really had to fight the weight, and in some cases the power surge, in the technical stuff. It was often difficult to control, which made traversing technical sections even harder than they are on a non-assist bike.

I did discover that lowering the assistance level to eco helped me ride some technical sections more cleanly. In the higher-assist modes, the bike would lurch when I turned the cranks, which made picking my way through tricky sections of trail difficult. The lower-power Eco mode offered smoother acceleration, and helped offset the bike’s weight.

While I eventually learned how to manage the Bulls on more technical trails, I still found myself stopping and walking more than I would have liked. Eventually, I confined my rides on the Bulls to trails where it performed best: smoother trails that required more energy and endurance than technical ability. On these trails, having the assistance meant I could do more runs on the funnest downhills.

The Shimano Di2 electronic shifting on the Bulls is quick and precise and the gear range never had me looking for anything extra. Like other e-bike riders, in some situations I would shift the motor’s assist mode instead of gears, backing down the assist when more finesse was needed, and bumping it back up when the trail opened up. The gear shifter and assist-mode switch use the same smooth and light action Shimano Di2 rotating paddles, which makes for some nice consistency at the controls. I found the integration of the STePS system onto the handlebar worked well and was easy to use once I sorted out its finer details.

There’s a lot to like about the Bulls ECORE Di2 FS27.5: a powerful motor, sharp shifting, great brakes, confidence-inspiring tires, and smooth suspension. And on the right trails, it is an stirring bike to ride, providing the pure exhilaration of speed that’s possible on an e-bike.

Matt grew up riding BMX in the UK and has ridden across Europe and the US, and now he’s putting those miles to use testing road, mountain, and city bikes for Bicycling. His ideal ride includes includes steep rock gardens, sweeping berms, and fast descents followed by a cold beer.

A Month On The Electric Bulls Cross E8 Wave

It’s been over a month since I started test riding the Bulls Cross E8 Wave electric bicycle (e-bike), and what a pleasure it has been. This e-bike is a solid, fast, urban commuter. While it is on the pricey side, you get a well thought out e-bike you can ride to work without breaking a sweat. As with anything in life, you get what you pay for.

It’s been over a month since I started test riding the Bulls Cross E8 Wave electric bicycle (e-bike), and what a pleasure it has been. This e-bike is a solid, fast, urban commuter. While it is on the pricey side, you get a well thought out e-bike you can ride to work without breaking a sweat. As with anything in life, you get what you pay for.

Bulls Cross E8 Wave — A Solid Performer

Before we get to the test ride, the white elephant in the room is the price. Bulls bikes are not known for being cheap, and much like a Mercedes or Volvo, you pay for what you get. And that means a well designed e-bike that does the job well, without hiccups.

Sub-3,000 e-bikes are not sub-par, but plunking down 3,199 for the Bulls Cross E8 Wave means you can expect a lot more.

Our Bull E8 Wave model is technically a pedal-assist class 1. Here are more specs:

SR Suntour NEX-E25 OS 63mm

Drive Train

Bosch Active Line Plus (250w)

Rear Derailleur

Shimano Alivio RD-T4000SGS

Shimano Deore CS-HG50, 10-speed, 11-36T

Shimano BR-M315/SM-RT54, hydraulic disc brakes, 180/160mm

Charging Time

Max. Speed

The bike actually has a walk setting that helps you walk next to the bike without pushing it. This can come in handy when going uphill or if you are carrying something heavy and need to walk. To activate it, you put it in any assist mode except off, press the walk button at the bottom of the display, and then press and hold the button. It’s a cool feature I wasn’t aware of.

Bulls says we can get a 134-mile range from the Bulls Cross E8 Wave. I assume that can be achieved in Eco mode, but why hypermile this e-bike when you can have fun with the other modes? I have more fun dashing here and there, but suppose it might come in handy for those who have to travel very far on a charge or simply can’t recharge every day. In this case, the E8’s battery has enough juice to last a few days.

Shifting and braking cables are internally routed for better protection and give the bike a cleaner look. It has integrated lights and sports reflective tires as well.

The Cross E8 Wave weighs in at 56.4 lb (25.58 kg), perfect for commuting back and forth to work with speeds up to 20 mph (32 km/h).

The Bulls Cross E8 Wave’s Feel Ride

It took little to no time getting the feel of the E8 Wave. It’s a fast and zippy commuter at ease on paved roads. It does what it’s meant to do very well. The Bosch motor delivers the right amount of torque in a smooth, linear way.

month, electric, bulls, cross

I was afraid the rear battery position would put a lot of weight on the back of this bike. That’s normally a trade-off for these types of frames, where the only place for the battery is above the rear wheel. But Bulls engineered the Cross E8 Wave well enough that it doesn’t feel as if the battery tugs at each corner. The other fear I had was that the E8 Wave frame wouldn’t be as stiff as a diamond frame but it felt fairly tight with a comfortable upright seating position.

The three riding modes are intuitive enough to use without studying the E8’s manual. The switching between modes is not very quick and I found myself wanting quicker mode change at a green light or to get you out of potential harm’s way. I’m still a fan of throttles as a quick turbo boost. I’m really nitpicking here.

The Bosch charger comes with its unique proprietary connector, which is tricky to plug in while in dimly light places. You need a light to see where the prongs need to be inserted. After a while, I developed an intuitive feel and could do it in the dark, but this is one of those cases where I wish for standardization.

Affordability is a question of budget. For its intended audience, the E8 Wave is a good bang for your buck. Considering Bulls was an early adopter of the Bosch electric motor, the e-bike is a good example of great integration, smooth functioning, and effective development.

If that wasn’t enough of a review, you can read more about the bike on the excellent Electric Bike Review website.

The 2018/2019 price is above the company’s older city e-bikes, but Bull upgraded the E8 Wave electric motor, power, and battery while keeping weight down. Overall, the Bull E8 Wave is a perfect example of “you pay for what you get.” Stay tuned for our next iZip and Bulls test rides.

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Nicolas was born and raised around classic cars of the 1920s, but it wasn’t until he drove an AC Propulsion eBox and a Tesla Roadster that the light went on. Ever since he has produced green mobility content on various CleanTech outlets since 2007 and found his home on CleanTechnica. He grew up in an international environment and his communication passion led to cover electric vehicles, autonomous vehicles, renewable energy, test drives, podcasts, shoot pictures, and film for various international outlets in print and online. Nicolas offers an in-depth look at the e-mobility world through interviews and the many contacts he has forged in those industries. His favorite taglines are: There are more solutions than obstacles. and Yesterday’s Future Now

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and Комментарии и мнения владельцев published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.

BULLS E-CORE EVO EN Di2 Review

The BULLS E-CORE EVO EN Di2 was the big surprise in this group test. Up to now, BULLS has been known for quantity rather than quality – solid bikes with great value for money. With the E-CORE EVO EN, ZEG’s own brand ignites a firework of innovation.

For an overview of the test fleet head to the group test: The best eMTB of 2018 – 12 dream bikes go head to head

The best feature of the BULLS E-CORE EVO EN is located on the down tube of the bike: you have the option of mounting either one or two batteries. BULLS calls the system TwinCore, and itt provides a maximum battery capacity of 750 Wh. For short trips, you can happily leave one of the batteries at home. This saves a valuable 2.07 kg in weight, which noticeably benefits the handling. The bike comes standard with only one 375 Wh rechargeable battery pack. When buying, you should therefore consider the € 499 for a second battery. Even at a total price of € 6,998 (incl. second battery), the value for money of the E-CORE is still very good. The spec is top-notch and reliable, leaving us with nothing to complain about. The suspension consists of a RockShox Lyrik suspension fork and a FOX FLOAT X2 shock, both providing 180 mm of travel. The Shimano Saint brakes work reliably and offer plenty of stopping power, while the Shimano XT Di2 electronic derailleur changes gears with surgical precision.

After the first few pedal strokes, you immediately feel very comfortable on the BULLS. Thanks to the short stem, the seating position is rather upright and very comfortable. The Shimano STEPS E8000 delivers a good amount of thrust, and despite the plush 180 mm of travel, the bike climbs surprisingly well. BULLS kept the bottom bracket a bit higher, giving you more ground clearance when pedalling, minimizing the risk of striking your pedals on roots or rocks.

With the BULLS you get a lot for your money: lots of fun, a lot of range, and lots of fancy components!

Most often a high bottom bracket results in nervous handling on the downhills. Not so with the BULLS, as the engineers have succeeded in giving the bike a very balanced ride. The E-CORE has exactly the right mix of agility and composure, which makes riding it child’s play. Unlike many other bikes with that amount of travel, it is pleasantly manoeuvrable and rides very precisely. Should you ever be surprised by an obstacle – whether it’s a field of roots or a curb – the plush suspension will iron over it with ease. The Schwalbe Magic Mary tyres look really massive at first glance, but despite their rough profile they roll well off-road and offer plenty of cornering grip and braking traction. This pays off on narrow single track as well as emergency braking on forest roads.

The BULLS E-CORE EVO EN Di2 in detail

Fork RockShox Lyrik RC 180 mm Shock FOX FLOAT X2 180 mm Motor/battery Shimano STEPS E 8000 375 Wh Twin Core Drivetrain Shimano DEORE XT Di2 Brakes Shimano SAINT Seatpost Kind Shock LEV INTEGRA Stem Money Link 55 mm Handlebar Bulls 780 mm Wheelset DT Swiss HX 1501 Tires Schwalbe Magic Mary 2.6″ optional battery: 375 Wh (€ 499)

The geometry of the BULLS E-CORE EVO EN

44 49 54

Size
Seat tube 440 mm 490 mm 540 mm
Top tube 606 mm 620 mm 639 mm
Head angle 65 ° 65 ° 65 °
Seat angle 74.5 ° 74.5 ° 74.5 °
Chainstays 438 mm 438 mm 438 mm
BB Drop 0 mm 0 mm 0 mm
Wheelbase 1214 mm 1224 mm 1246 mm
Reach 435 mm 450 mm 465 mm
Stack 586 mm 612 mm 625 mm

Conclusion

With the BULLS E-CORE EVO EN Di2, the German manufacturer has hit the sweet spot. From the very first meter onwards, the bike reveals its playful nature and thanks to the plush suspension is well prepared for every situation. With two rechargeable batteries the range is enormous, but on shorter outings removing one battery will increase the bike’s agility. Here you will find a lot of innovation and the finest parts at a fair price: our Best Value tip!

Pros

– great handling – good suspension – long range

Cons

– second battery comes at an extra charge

Uphill | Downhill | Stability | Agility | Value for money

For more info head to: bulls.com

The testfleet

For an overview of the test fleet head to the group test: The best eMTB of 2018 – 12 dream bikes go head to head

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Words Photos: Christoph Bayer

Extreme Bull K6 Electric Bike

The Extreme Bull keeps getting better with the release of the K6. It’s the first of its kind with a unique form factor inspired by sitting scooters but with a far more relaxed riding position and lower center of gravity. Combined with the extreme power this makes the Extreme Bull the perfect scooter for mobbing around town! Our new K6 version now sports a more refined frame, upgraded suspension, and higher voltage LFP battery.

Batch 2 has arrived! Now with Samsung 40T cells.

This Bull Always Sees Red!

Running on two powerful 3500 watt motors the Extreme Bull lives up to the name! Like a charging bull, it can reach 50 mph. while the 2900 watt hour 134v battery keeps riding for 50 miles of practical range

Note there is a 500 shipping surcharge for the bull due to the nature of it need to be ships with freight. This fee is waived for pickup in San Francisco, California.

Due to credit card processing fees, cancellation of a preorder will be subject to a small fee that we are hit with when the order is accepted

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REVIEW: BULLS COPPERHEAD EVO AM EMTB – A GERMAN ELECTRIC EVOLUTION

Bulls is a German brand established in 1995 that gained credibility when its riders Karl Platt and Stefan Sahm won the Cape Epic multiple times on its Copperhead model. Fast-forward to today, and the Bulls line is more electric assist than not. In a true sign of the times, only three value-priced hardtails exist in its collection. That cross-country race bike in the brand’s beginnings has morphed into the 150mm-travel Copperhead EVO AM eMTB.

FRAME

The Copperhead EVO AM’s front triangle and swingarm are made of 6061 aluminum. It is a mixed-wheel “mullet” bike with 29-inch front and 27.5-inch rear wheels. Bulls offer the Copperhead in four sizes, listed in centimeter seat tube heights like road bicycles. Our size-54cm test bike is equivalent to most brands’ size medium. It has a 66-degree head angle, 75-degree seat tube angle (74 degrees on the larger sizes) and a 465mm reach.

Cables are internally routed through the frame with standard cable ports, but two of the drive unit’s wires are routed through the headset. There is also a water bottle mount inside the front triangle.

DRIVE UNIT

Bosch’s Performance Line CX Smart System powers the Copperhead, producing a maximum of 85 N/m of torque from its electric motor. This is Bosch’s top-of-the-line system and its first to feature Bluetooth connectivity via its eBike Flow app. In this app, riders can tune two of the four modes for assist percentage, power delivery and cutoff speed. The Tour and the more powerful eMTB mode automatically adjust power output based on torque and cadence.

Everything is controlled and monitored through the LED remote switch. This is where you power up the bike and toggle through the assist modes. Light color indicates mode choice at a glance, and five bars show battery level. For those who want an actual display, a variety of options are available from Bosch and can be integrated into the system. There is even an option to use a cell phone as a display, but that is probably not the best idea for off-road trail riding.

Paired to the motor is a 750Wh battery pack that’s hidden under a quick-release removable cover. The battery has a six-hour claimed charge time from empty with a 4-amp quick charger.

COMPONENTS

Bulls offers the Copperhead EVO AM 750 in four different configurations starting at 5999. Our EVO AM 4 750 is the top-of-the-line version that’s outfitted with a Shimano XTR drivetrain, BR6120, four-piston/two-piston brakes with large 203mm rotors and EThirteen 165mm-long crankarms. Its rims are tubeless-ready, Bulls-branded Ryde Disc 30 rims shod with a Schwalbe Magic Mary in front and a Hans Dampf in back, both with Super Gravity casings. The cockpit consists of Bulls-branded parts, a Fox Transfer dropper post and Selle Royal Vivo Ergo saddle. The bike should have come with a Limotec A1-Z dropper post, but supply challenges changed that to a Fox Transfer on our test bike.

One unique aspect of the Copperhead is a Bulls headlight and taillight mount that is hard-wired into the battery system. The bike is specifically designed to utilize Bulls’ Monkeylink headlight and taillights. The lights are secured via a cool, magnetic anchoring system and do not come with the bike but are available separately.

SUSPENSION

A classic, FSR-style, four-bar linkage suspension design paired with a Suntour RS19 TRIAir 3CR shock achieves 150mm of wheel travel. Up front, things on our test bike were not to spec due to supply-chain issues. Our bike had a 140mm-travel Suntour Durolux 36 fork instead of the 150mm travel model, which comes with an RC2 damper with high/low-speed compression damping adjustments. Not only are lockouts unnecessary on an electric bike, it didn’t offer any sort of compression adjustments to hold back the performance. Late in our testing, we received the correct fork.

WHAT DID WE LOVE?

As with most electric bikes, the Copperhead flies up climbs. Its suspension is active yet efficient-feeling, and the Bosch motor is powerful. Even though they claim 85 N/m of torque, it feels stronger than that and almost at the level of Rocky Mountain’s Powerplay system, which we reviewed in the May issue. The best way we can describe the feel of the Bosch system is that it combines the powerful feeling of Rocky Mountain’s Powerplay with the smooth nature of Shimano’s EP8. No, it’s not quite as powerful as the Rocky or as smooth as the EP8, but it has characteristics of both.

We used the eMTB mode most of the time, but tweaked the Turbo mode in the app for maximum output when we really needed a burst of power. Speaking of power, Bosch has introduced the Extended Boost feature into the eMTB mode where power stays on for a half-second or so after you stop pedaling to help with technical maneuvers. It’s awesome, and we wish it were available in all modes.

Shimano’s XTR drivetrain is about as good as shifting performance gets, even under loads of electric assist. The lower-end Shimano brakes with a two-piston rear caliper might raise a few eyebrows, but they surprised us with powerful, fade-free performance.

Cornering and overall handling are very good on the Copperhead. It feels planted yet changes directions predictably, thanks in part to the grippy, soft-compound Schwalbe tires and smaller-diameter “mullet” rear-wheel setup. Geometry also feels dialed on the descents with an ideal trail-bike balance that’s quick enough to have fun in tight singletrack.

WHAT DID WE HATE?

Test riders got off to a rough start with the Bulls. First, the battery cover rattled enough to coax one tester to stuff a piece of cardboard in it to quiet things down. A replacement cover from Bulls measured a few millimeters longer and fit more snugly, but the bike is still quieter without the cover installed than with it. We would like to see a cover with some sort of integrated sound-deadening material or actually integrated into part of the battery itself.

Nobody liked the action of the substitute-spec Suntour fork. It was harsh on sharp impacts and not eager to achieve full travel, so we removed all of its volume spacers. Even our 200-plus pound test riders felt an improvement, but it was still a bit too progressive and harsh-feeling for most. Plus, there were times when its 36mm upper legs felt a bit flexy under the weight of the bike. The correct spec fork proved to be a vast improvement. It is smoother, has more support and uses all of its travel. As for the rear suspension, the shock had a tendency to blow through its travel on hard hits. Using the middle compression setting helped but introduced harshness on small, frequent bumps. When we tested this fork and shock on regular mountain bikes last year, the overall performance was decent, but the suspension seemed overwhelmed by the extra weight and power of the electric bike – particularly in the rear.

One of the wrecking crew riders likes a low bar position and was disappointed to see that the remote switch and light wires go through all but one of the headset spacers before entering the frame, requiring wiring disassembly to adjust the bars. We already have mixed feelings about headset cable routing (mostly negative), but this just took things to another seemingly silly level.

Finally, at 60 pounds, the Copperhead has the unfortunate distinction of being the heaviest bike we have tested in years—maybe ever. It is a solid 5 to 10 pounds more than other electric bikes we’ve reviewed, and you feel it, especially when descents get rough and fast. The weight even seems to mute the Bosch power some, because it just feels a little less punchy than on other lighter bikes we’ve tested it with.

BOTTOM LINE

The Copperhead has a lot going for it. Bosch’s drive unit is incredible. The geometry is good, and the rear suspension design is proven; however, the bike’s overall weight and average rear suspension performance hold it back from greatness for hardcore riders. Enthusiasts and recreational riders who are more worried about comfort and appreciate a planted feel and features like integrated lights will enjoy the Bulls. The rest of us need a lighter-weight platform and better suspension to be truly happy.

CATEGORY: Electric Trail

WHEEL SIZE: 29″/27.5″

SUSPENSION: 150mm (front/rear)

month, electric, bulls, cross

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