Electric Bike Action Bike Test: Bulls Copperhead EVO AM 4 Trail Bike



$4899. For higher spec and a bit more money, you can get the AM 2 or step up to the AM 3. The AM 4 is the flagship of the series, with the best components of the bunch.

Monkeylink lights are an option, and the receiver is already pre-wired for them. Click them in magnetically and they’re ready to go!


Even with the lighter motor, it’s a bit heavy in the higher-end e-MTB market. That can be a ding against it, but it
does make it feel more planted and stable when you’re flying down the trail. The geometry is good and suspension
is excellent. If you’re an all-mountain rider who wants a powerful motor and great connected features, the Copperhead EVO AM 4 is worth a serious look.



Price: $7,999

Motor: Bosch Performance Line CX, 4th generation

Battery: Bosch PowerTube 625 Wh 36V/16.7 Ah

Charge time: 4.9 hours (0-100%)

Top speed: 20 mph

Range: 15–30 miles

Drive: Shimano XTR

Brakes: Shimano 4-piston hydraulic disc brakes 203mm rotors 

Controls: Bosch Kiox

Fork: RockShox Lyric Ultimate Charger RCT3, 150mm

Rear shock: Rockshox RS Deluxe DebonAir, 150mm

Frame: 6061 aluminum

Tires: Front: Schwalbe Magic Mary, 27.5×2.8. Rear: Schwalbe Hans Dampf, 27.5×2.8”

Weight: 55 lb.

Color choice: Neon Yellow

Sizes: S, M, L, XL


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