Merida eOne Forty 400 Electric Mountain Bike Black/Orange (2021)

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Merida eOne Forty 400

  • Shimano EP8 Drive Unit
  • Shimano E8036 - 630Wh Battery
  • Alloy Frame
  • Suntour XCR34 LOR DS Fork - 140mm Travel
  • Suntour RS-EDGE-TR-LO-R8-M6 Rear Shock
  • Shimano M4100 Hydraulic Disc Brakes


"Built around the new Shimano EP8 motor and the new 630Wh battery pack, this gives the bikes more power and more range, likely welcome news for those are in the market for a new full suspension e-MTB...For a bit over six grand, the eOne-Forty 400 gets riders onto a full suspension e-MTB with the new Shimano EP8 motor and 630Wh battery. Unreal!"

Flow Mountain Bike

The Merida eOne Forty 400 is a dual suspension e-bike loaded Shimano's brand new EP8 Technology. The eOne Forty uses the same performance focused alloy frame as the eOne Sixty, with the Shimano E8036 630Wh (E8035 504Wh Battery for the small size) integrated into the frame for a clean look and balanced feel. The 630Wh offers 25% increase in capacity over the older 504Wh model, matched with the brand new Shimano EP8 Motor which replaces the older E8000 motor. This motor brings software that allows you to adjust the support levels of each assistance mode from your phone to suit your personal needs and preferences. It also packs a bigger punch with 85 Nm and is also lighter by 300 grams for a swift ride.

You know that the e-bike components on this bike are awesome, but so is the rest of the spec on this bike. The Suntour XCR34 LOR DS Fork brings 140mm travel to tame the trails and help give this bike some punchy personality when matched with the Suntour RS-Edge Rear Shock with 133mm travel. The Shimano Deore shifters and rear derailleur offer smooth shifting, while the Shimano M4100 Hydraulic Disc Brakes give you all of the stopping power to control this beast and ride with confidence. Add to that the hand picked Maxxis Rekon 29x2.4" Front Tyre/ Maxxis Rekon 27.5x2.6" Rear Tyre combination to ensure that this heavier full suspension e-bike offers precision, playfulness, and traction on the trails.

It's all finished off with a Merida Comp TR Dropper Post so that you can get out of your seat and really let it rip. All of this considered, the eOne Forty 400 is a well-balanced e-bike built to give you an authentic riding experience with advanced technology which is built to perform in the real world on the trails.


Shimano EP8

Comes equipped with the new EP8 motor from Shimano STePS. It offers an increased performance of 85 Nm, less weight, a further reduction in size and less friction. On top of that, the new internal battery offers an extended range and super-fast charging capabilities.

Clever Wheels

To give the e-full suspension bikes precise steering, fantastic rolling over obstacles, yet maximum traction, we have combined a 29er front wheel with a 2.5" tyre and a 650B rear wheel, equipped with a slightly wider 2.6" tyre. The perfect combination of precision, playfulness and traction. process.

Internal Block

First introduced in 2015, the e-bike version of the 'Internal Block' is incorporated directly into the frame and prevents the fork crown from hitting the frame in case of a crash or an extreme steering angle. As an extra protection, there are additional rubber bumpers on the frame to avoid any frame damage from the fork crown.

More Information
SKU 21MeridaeOneForty400BlackOrange
Season 2021
Click & Collect Yes
Wheel Size 29" / 27.5"
Frame Material Alloy
Groupset Brand Shimano
Groupset Shimano Deore
Cassette Type 10 Speed
Fork Brand Suntour
Chainset Type Single
Brake Type Hydraulic Disc Brake
Front Travel 140mm
Battery Shimano E8036; 630Wh - (E8035 504Wh for the small size)
Bottom Bracket included
Brakes Front: Shimano M4100; 4 piston, Rear: Shimano M4100; 2 piston
Brake Levers Shimano Deore
Cassette Shimano M4100; 11-46 ATC; 10 speed
Chain CNHG54
Crankset Shimano FCEM600; 165 mm for all sizes
Derailleur Rear Shimano Deore RDM5120 10
Display Shimano SC-E5003
Motor/Drive Unit Shimano EP8; 85Nm
Fork Suntour XCR34 LOR DS; Air Boost; 140mm; Tapered; 51mm fork offset
Frame eONE-FS LITE III; MAT aluminium; 133 STR; 29/27.5" WHS; 148x12 AST; intube;
Grips MERIDA Expert EC
Handlebar MERIDA Expert eTR; 780 Wide; 20 Rise
Hubs Shimano MT400-B; 148x12 WHR; 36 SPH; Centerlock
Pedals VP; VPE-537
Rims MERIDA COMP TR; 29 IWR; MAT aluminium
Saddle MERIDA Comp CC; V-mount
Seatpost MERIDA COMP TR; 30.9 DSP; 0 SSB; S 100 SPT - M/L 125 SPT - XL 150 SPT
Stem MERIDA EXPERT eTRII; MAT aluminium; 35 DSH; 0 ASD
Spokes Black stainless
Shifters Shimano Deore M4100-RC1 clamp band 10
Tyres F: MAXXIS REKON; 29x2.4"; wire, R: MAXXIS REKON; 27.5x2.6"; EXO wire
Speeds 1 x 10
Sizing SKUs SM: MEEB2168134, MD: MEEB2168145, LG: MEEB2168156, XL: MEEB2168167
Motor Brand Shimano
Motor Model Steps EP8
Motor Torque (Nm) 85 Nm
Motor Torque (Nm) 90-99 Nm
Battery Brand Shimano
Battery Model STEPS E8035
Battery Size (Watt-Hours) 504 W-h
Battery Size 500-549 W-h
Charge Time (Hours) 5 hrs
Assist Modes 4 Modes

Merida One Forty Sizing Chart

Rider's Height (cm)

This is an accurate estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.

Electric Dual Suspension Mountain Bike Geometry Diagram


ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base


Wheel Size 29" / 27.5" 29" / 27.5" 29" / 27.5" 29" / 27.5"
Frame Size 44 48 52 41
ST Seat Tube (mm) 435.0 475.0 515.0 410.0
TT Top Tube (mm) 596.0 619.7 643.4 572.0
CS Chain Stay Length (mm) 435.0 435.0 435.0 435.0
HTA Head Tube Angle (°) 66.3 66.3 66.3 66.3
STA Seat Tube Angle (°) 75.0 75.0 75.0 75.0
HT Head Tube (mm) 110.0 125.0 140.0 95.0
R Reach (mm) 435.0 455.0 475.0 415.0
S Stack (mm) 601.0 615.0 629.0 587.0
WB Wheel Base (mm) 1170.0 1194.0 1222.0 1144.0


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