Bulls SonicE-bikes rethought

Adrian Kaether

 · 24.07.2019

Bulls Sonic: E-bikes rethoughtPhoto: Hersteller
Bulls Sonic: E-bikes rethought [now with EMTB video]

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For the 2020 model year, Bulls has taken its e-MTBs to a new level with the Sonic model range. The main focus was on a more coherent overall concept, better ergonomics and more rigidity.

A bike is a bike, whether with or without e-bike, isn't it? The concept of the conventional mountain bike as a bike between the mountain and the valley has well over 30 years of development behind it - thru axles, wide rear triangles and hubs, large bearings and head tubes are the result. But are today's standards really the last word in wisdom, even for e-mountainbikes?

  The newly developed Bulls Sonic.Photo: Hersteller The newly developed Bulls Sonic.

Sonic: New Bulls development with Fraunhofer Institute - new head tube for more stiffness

The engineers at Bulls asked themselves this question when it came to developing the Sonic e-MTB product line for the 2020 model year. And to ensure that everything had a solid foundation, the Bulls guys enlisted scientific support from the Fraunhofer Institute. Existing products were scrutinised, details were adapted and the old was compared with the new in intensive tests. You can see the results above. Good to see: An integrated, removable battery, the new Bosch CX motor with motor protection and state-of-the-art geometry and equipment.

"The e-bike has to be fun, of course. You have to sit on it and feel that it connects with your body. The first impression was simply sensational! It's a completely newly developed e-bike and feels much more agile, much more manoeuvrable - and you just want to 'shoot' every centimetre on the trail!" - Bulls team rider Karl Platt
  Thanks to the new Bosch power unit, the Sonic should be able to climb any slope. Not only when multiple Cape Epic winner Karl Platt is pedalling.Photo: Hersteller Thanks to the new Bosch power unit, the Sonic should be able to climb any slope. Not only when multiple Cape Epic winner Karl Platt is pedalling.
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Detail improvement and system integration

However, the first press photos from Bulls don't really show how much effort Bulls has put into improving the details. The bike comes with a new - wider - head tube standard that deviates from the classic tapered head tube. 1.8 inches to 1 1/8 inches. This means that the steerer tube is around 0.76 centimetres wider at the lower end. This should make the bike more precise and predictable to steer and also transfer power better. The cables run neatly inside the frame and are partially routed in the stem - similar to what we saw on Rotwild's new RX750. The dropper post from Eightpins is also part of many bikes and ensures a clean look and system integration - also reminiscent of Rotwild's 2020 range. So it's hardly surprising that Lutz Scheffer, creator of the new Rotwilds, also had a hand in the new Bulls models.

  Multiple marathon world champion Alban Lakata puts the Sonic through its paces. Thanks to the newly designed steering head, the bike should perform particularly well when cornering.Photo: Hersteller Multiple marathon world champion Alban Lakata puts the Sonic through its paces. Thanks to the newly designed steering head, the bike should perform particularly well when cornering.

The Bulls Sonic is available in four versions: as a hardtail (29 inch or 27.5 inch - 120 millimetres), trail fully (29 inch - 120 millimetres), all mountain (wheel mix 29 inch front, 27.5 rear - 150 millimetres) or enduro (wheel mix 29 inch front, 27.5 rear - 180 millimetres). There is also an offshoot of the hardtail with 26-inch wheels, which is designed to enable children to get into the sport as early as possible. There is also a special women's version of the trail bike with 27.5-inch wheels and 120 millimetres of suspension travel. All bikes, with the exception of the 26-inch hardtail, are available with batteries with 400 watt hours, 500 watt hours or 625 watt hours. Prices range from 2999 euros for the cheapest hardtails to 6999 euros for the top version of the All Mountain with carbon frame.

The Sonic EVA TR1* is the entry into the world of women's trail bikes, comes with Suntour suspension, Shimano MT420 brakes and Sram twelve-speed drivetrain and costs 3399 euros.
Photo: Hersteller

All information on the new Bulls e-mountainbikes for 2020 can also be found on the Website of the manufacturer.

Adrian Kaether's favourite thing to do is ride mountain bikes on bumpy enduro trails. The tech expert and bike tester knows all about Newton metres and watt hours, high and low-speed damping. As test manager at MYBIKE, Adrian also likes to think outside the box and tests cargo bikes and step-through bikes as well as the latest (e-)MTBs.

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