Adding to their wide lineup of electric bikes, BULLS Bikes recently announced a new series of full suspension e-MTB’s called the Copperhead EVO AM. These bikes offer 140 or 150mm travel, roll on 27.5” wheels, and their build specs range from entry-level to high-performance.

Bosch electronics:

BULLS Bikes Copperhead EVO AM, rider in puddle

All four Copperhead EVO AM bikes are powered by Bosch Gen4 Performance Line CX motors. Bosch’s most powerful motor is lightweight, compact, and highly responsive. It also offers more torque and efficiency than previous generations. This Class-1 motor will assist the rider at speeds up to 20 mph.

BULLS Bikes Copperhead EVO AM, battery cover

All Copperhead models run a 625Wh Powertube battery that provides 36V and 16.7Ah. The battery fully charges in five hours. The top-tier Copperhead Evo 4 gets a Bosch Kiox display unit, while the 3, 2, and 1 models run a Bosch Purion. The electronics provide four assist modes – Eco, Tour, eMTB and Turbo.

BULLS Bikes Copperhead EVO AM, rider with bike
Look closely and you can see the MonkeyLink stem and seat clamp in this pic.

All models also come equipped with MonkeyLink Connect stems and seat clamps. If you’re not familiar, MonkeyLink components double as multi-purpose mounts that can host lights or fenders (with integrated lights). The e-bike specific Connect series components are powered wirelessly, and use a Fidlock connection to easily click in and out of their mounts.

Frame details:

BULLS Bikes Copperhead EVO AM, rider

The Copperhead EVO AM frames are made of 6061 aluminum, and they all ride on 27.5” wheels. The 1 model offers 140mm’s of rear travel, but the 2, 3 and 4 all get 150mm. The 1 model gets a 140mm fork while the others get 150mm’s to match the rear ends.

All but the entry-level model come on 2.8” tires, so there’s ample frame clearance for mid-fat treads. Axles are Boost-spaced, all cables are internally routed, and there’s one bottle cage mount inside the front triangle.

The Copperhead EVO 4, 3 and 2 models only come in 44 and 48cm frame sizes, but the entry level 1 model offers 41, 44, 48 and 54cm options. Check out the chart below for full geometry specs on all frame sizes.

Copperhead EVO AM Geometry:

BULLS Bikes Copperhead EVO AM, geometry chart

Model lineup:

Below are the full build specs for each Copperhead EVO AM bike. A few quick notes on specs – The 1 model is the only bike with less travel and a 10 speed drivetrain instead of 12 speed. The 1 is also the only model that doesn’t get four-piston brakes. Weight doesn’t change much from the high-end model to the entry level: The EVO AM 1 weighs 55.6lbs, but the high-end 4 only drops to 55lbs. BULLS does include a set of Wellgo pedals on every bike.

Copperhead EVO AM 4$7999

BULLS Bikes Copperhead EVO AM 4

BULLS Bikes Copperhead EVO AM 4 specs

Copperhead EVO AM 3- $5899

BULLS Bikes Copperhead EVO AM 3

BULLS Bikes Copperhead EVO AM 3 specs

Copperhead EVO AM 2- $5299

BULLS Bikes Copperhead EVO AM 2

BULLS Bikes Copperhead EVO AM 2 specs

Copperhead EVO AM 1- $4899

BULLS Bikes Copperhead EVO AM 1

BULLS Bikes Copperhead EVO AM 1 specs
All images c. BULLS Bikes

BULLS Bikes’ Copperhead EVO AM series e-MTBs are now available. Visit their website to purchase online or to find a dealer near you.

bullsbikesusa.com

2 COMMENTS

  1. It is disappointing that no one seems to be offering an e-MTB with a class-3 motor. It would be a do anything bike. There seem to be no difference between the Bosch motors in these bikes and their Performance line speed motor other than the programming doesn’t allow pedal assist at speeds more than 20. Bosch should offer dealers the ability to change the bikes to class-3 for free at the buyer’s request. I know that the high pedal assist speed would mean that the bikes could be banned on certain trails but that should be by the buyer’s choice.

  2. I totally agree. they should also offer an option to add a throttle to any e-bike. I would love to just rip the hell out the local trails on one of these. it would be so much fun. the best part is if anyone did see you, the bike still has pedals so you could just pedal and they would never know.

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