BULLS SONIC EVO AM 6 Carbon in Review | E-MOUNTAINBIKE Magazine
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BULLS Bikes | The Best USA Bicycle and eBikes Manufacturer
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2020 BULLS eBike Innovations – A 180 mm eMTB, a carbon step-through and a Sachs motor with a 650 Wh battery | E-MOUNTAINBIKE Magazine
E-Mountainbikes | BULLS Bikes Onlineshop
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BULLS E-MTB news 2019: lightweight 15,9 kg bike, Brose with 750-Wh-battery & eSUV full-susser | E-MOUNTAINBIKE Magazine
The BULLS SONIC EVO EN-SL 1 – In our huge “Best e-mountainbike of 2023” group test | E-MOUNTAINBIKE Magazine
Uncompromising race machine or a sheep in wolf's clothing? - Bulls SONIC EVO AM-Team Carbon 2023 with Bosch CX Race motor first ride review | E- MOUNTAINBIKE Magazine
BULLS-EBIKES.EU|All-Mountain E-MTB
BULLS 2019 Catalog: eMTB Hardtails - eBike Central