Merida EOne-Forty 4000 2020 – Electric Mountain Bike

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Last updated on November 18, 2020 3:16 pm
Merida EOne-Forty 4000 2020 – Electric Mountain Bike
Merida EOne-Forty 4000 2020 – Electric Mountain Bike


Merida EOne-Forty 4000 2020 – Electric Mountain Bike


The brand new Merida eOne-Forty 4000 uses exactly the same frame as the eOne-Sixty but with a shorter shock stroke. The entry level in to Merida’s new integrated battery carbon eBike rangle the eOne-Forty is based around the Shimano Steps E7000 60NM motor with Shimano Steps E7000 mode lever and high capacity Shimano Steps E8035 504W battery. To keep prices down, the bike does not come with a Shimano display but using the Bluetooth junction can be paired with your Garmin device or phone.

Key Features:

  • Carbon frame with alloy swing arm and fully integrated battery pack
  • SR Suntour Raidon 34 fork offers 140mm of controlled suspension travel
  • SR Suntour Edge air shock controls the 140mm of rear wheel travel
  • Shimano Deore 10 speed drivetrain for easy gear shifting
  • Shimano 4-piston hydraulic disc brakes for powerful speed control
  • Sizes: Small, Medium, Large, X Large, XX Large
  • Colours: Sparkling Red/Black
  • The Merida EOne-Forty 4000 is available with 0% APR finance

Drive information:

  • Motor: Shimano Steps E7000 70Nm
  • Battery: Shimano E8035 504Wh internal battery pack
  • Connectivity: Bluetooth smart phone and PC app


Thermo Gate:

Forged aluminium part integrated into the headtube. Works like a chimney so hot air can rise up and escape. When riding, heat build up from the battery is not usually an issue, but if the bike was laid in the sun for a long time heat could build up.

Wheel Size:

Mixed wheel sizes to get the best of both worlds. 29″ front wheel for better ‘roll over
performance’ with a 2.5″ wide tyre for precise steering. 27.5″ rear wheel with 2.6″ tyres give
maximum traction and comfort. The smaller rear wheel size allows shorter chainstays for a more agile and playful character.

Internal Block:

To prevent the fork crown hitting the down tube we use an ‘Internal Block’ integrated into the frame. A clamp is installed on the fork steerer. If the steering angle is too extreme the clamp hits the rubber protection block inside the frame. Just in case the clamp does rotate on the steerer, there’s additional rubber protection under the head tube.

Easy Charging:

The internal battery can be accessed easily, pulling a rubber strap, sliding forward the panel and opening, the battery can then be removed by a small turn of an Allen Key (provided). But the battery doesn’t need to be removed as a satellite charging port can be used.

Rattle Free:

Two part battery cover, the outer layer reduces noise through its soft material and tight fit, while the hard plastic inner layer gives it the structural shape. Key components i.e. the rubber strap and o-rings, can be replaced. Almost all connection points between battery and frame have a rubber layer between them too.

Bottle Bosses and Cable Routing:

A new clamp system makes it easy to organise and route cables inside the downtube whilst also providing bottle bosses on the outside. Bottle cages can be put in two positions. The upper one must be used when a piggyback shock is mounted. For Gen II a bottle can be mounted to all frame sizes.

Battery Wake-Up:

If the bike has not been used for more than 6 months, or when the battery of the on/off switch is empty (this battery is normally charged by the main battery) it’s necessary to wake the battery up again, simply push a 4mm Allen key (on the Merida Expert TR axle) through the hole on the downtube and press the hidden button underneath

Lifeteime Warranty:

Covers the entire ownership of the original purchaser. This applies to manufacturing and material defects and includes bikes used for racing.*A rider and equipment weight limit of 120kg applies.


Frame: Carbon front triangle with easily removable integrated battery, satellite on/off switch, on-bike charging port and “thermo gate”
Fork: Suntour Raidon 34 LOR; Air; 140 mm travel; Tapered steerer; 51mm fork offset
Rear Shock: SR Suntour Edge; lockout
Headset: Merida 1901
Stem: Merida Expert eTR; 35 mm diameter; 0 degree rise
Bars: Merida Expert eTR; 780 mm wide; 20 mm rise
Front Brake: Shimano MT-420 4 piston hydraulic disc brakes with Shimano RT30 203 mm rotors
Rear Brake: Shimano MT-420 2 piston hydraulic disc brakes with Shimano RTEM300 180 mm rotors
Rear Mech: Shimano Deore Shadow+
Shifters: Shimano Deore
Speed: 10
Rims: Merida Comp TR; 29 mm inner width; 29″ front and 27.5″ rear
Front Hub: Shimano MT400-B; 110 x 15mm axle; 32 spoke; Centerlock
Rear Hub: Shimano MT400-B; 148 x 12mm axle; 36 spoke; Centerlock rear with Merida Comp TR rear axle including removeable lever, 6/4mm allen key
Spokes: Black stainless
Front Tyre: Maxxis DHF 29″ x 2.5 ” Kevlar bead – folding EXO TR Dual Compound
Rear Tyre: Maxxis DHR II 27.5″ x 2.6 ” Kevlar bead – folding EXO TR Dual Compound
Seat Post: Merida Comp TR; 30.9 mm diameter; 0mm layback S: 100 mm travel – M/L/XL/XXL: 125 mm travel
Saddle: Merida Comp CC
Chainset: Shimano CRE70-B; 34 teeth with Shimano E8000 crank
Chain: KMC e10S
Cassette: Shimano HG500; 11-42 teeth, 10 speed
Pedals: VP; VPE-537
Battery (Wh): 504wh
Motor: Shimano Steps E7000; 60Nm motor

9Expert Score
Very cpable Downhill E-MTB
Merida make some cracking bikes, and the eOne-Forty 4000 is no exception. This may be an electric bike, but it is based on a very capable off-road machine. Everything about this bike shouts "take me to the trails". The attention to detail is great, even down to the different diameter front and rear wheels. The Shimano E7000 motor is, as always superb and the 504Wh battery should give the rider enough juice for a good few hours of off-road fun. The Carbon fibre frame with alloy swinging arm work perfectly together and the whole package is finished of with Shimano Deore 10-speed drivetrain and MT-420 4-piston hydraulic brakes with a 203mm rotor upfront and a 180mm at the rear. The Merida eOne-Forty 4000 is a great bike, my only complaint being, they should have used the E8000 steps motor in my opinion (for the price)
Overall Score
  • Fully capable off-road machine
  • Shimano Steps E7000 Motor
  • Good 504Wh battery
  • Excellent components
  • Lovely Carbon frame
  • Wheel combination works a treat!
  • At this price, they should have fitted the E8000 motor (in my opinion)

Additional information

Specification: Merida EOne-Forty 4000 2020 – Electric Mountain Bike

BRAKE TYPE Hydraulic Disc Brake
BRAND Merida
GEAR TYPE Derailleur
PEDAL SENSOR Torque Sensor
SUSPENSION Full Suspension
WHEEL SIZE 29" Front / 27.5" Rear

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