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Gravel e-bikes with power for trails and everyday adventures

Gravel road, trail or urban jungle - the e-gravel bikes in the Grinder EVO series are the direct link between different bike worlds. From everyday adventures to trail descents, you can enjoy maximum sporty versatility combined with the added power of high-performance drive systems. Different model variants offer you the best possible choice, tailored to your individual area of use. Sporty commuter, trail rocket, bikepacking or city adventurer - the choice is yours. You can rely on the years of experience of our developers in the Cologne TechCentre and optimally coordinated equipment for all paths and trails.
  • Maximum variety for sporty gravel adventures and daily routes
  • Trail Grinder EVO with dropper post and suspension fork
  • Flatbar model with belt drive and singlespeed

Bosch Performance Upgrade

Kostenlos für den Performance Line SX Motor

From autumn 2025, Bosch will be providing a free performance upgrade for the Performance Line SX motor. In conjunction with the Bosch eBike Flow app, the performance of the drive unit can then be increased to the following values: 60 Nm torque, 600 watts of power and up to 400 % assistance.

Test result: Grade 1.6 - Very good

ElektroRad 05/2025

Conclusion: The Bulls Grinder Evo SX convinces with motor performance and comfortable riding characteristics on the trail with a wide, not too sporty range of use.

Test result: very good, grade: 1.3

Focus Mobility 2025

Conclusion: The E-gravel bike from Bulls weighs just 18.5 kilos - that promises a lot of riding fun in view of the combination of sporty riding position and lively Bosch SX motor. The lightweight unit lives up to its reputation and provides strong propulsion with a neutral character, plus the pleasant handling of the aluminium frame, which, like the carbon fork, offers mounting options for accessories. The Shimano GRX with eleven gears fits well into the concept; the Grinder can be upgraded, for example, with the powered interface for a headlight.
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BIKE CATEGORY

Area of use: The area of use specified in Condition 1 applies. The vehicle can also be used on unpaved roads and gravel paths with moderate upward and downward slopes. Under these conditions, the bike may come into contact with uneven terrain and tyres may lose contact with the ground repeatedly.

Unsuitability: Never ride off road. Never perform jumps over 15 cm.

Specifications


Geometry

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Manufacturer

ZEG Zweirad-Einkaufs-Genossenschaft eG

Longericher Straße 2, 50739 Köln

kontakt@zeg.de

Distributor

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