Merida eOne-Forty 500 2021 - Electric Mountain Bike

Aluminium full suspension eBike with bigger 630w battery and new 85NM Shimano EP8 motor. Marzocchi Z2 140mm fork, SR air shock and Shimano Deore 11 speed transmission.
The eOne-Sixty is the headline grabber of the Merida eBike range, for 3 generations it has been winning tests, gathering accolades and generally hogging the limelight!
However........ the eOne-Forty and eOne-Sixty share exactly the same frame and design features but have different ride characteristics.
The shock stroke on the eOne-Forty is shorter, reducing rear travel to 133mm and creating a steeper seat angle. The shorter 140mm fork extends the reach and delivers a slightly steeper head angle. In combination these small changes make the eOne-Forty more agile and playful, a highly competent climber and perfect for all day riding.
All eOne-Forty models use the powerful new Shimano EP8 85NM motor and bigger 630NM battery (with the exception of S frame sizes).
The eOne-Forty 500 has a Marzocchi Z2 fork and SR Suntour rear shock with Shimano Deore 11 speed transmission.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Lite III - Hydroformed 6066 series triple butted aluminium with intergrated battery. Internal cable routing, Smart entry for rattle free running. Aggressive trail geometry delivers 133mm of rear wheel travel |
Fork | Marzocchi Z2 eMTB+; Air; 140mm travel; Tapered; 51mm fork offset |
Rear Shock | Suntour RS-Edge-TR-LO-R8-M6; lockout |
Headset | Merida-8152 |
Stem | Merida Expert eTRII; aluminium; 35mm diameter; 0 degree rise - Length : 50 mm all sizes |
Bars | Merida Expert eTR; 780mm wide; 20mm rise |
Front Brake | Shimano M4100; 4 piston hydraulic disc brake with Shimano RT30; 203 mm rotor |
Rear Brake | Shimano M4100; 4 piston hydraulic disc brake with Shimano RTEM300; 203 mm rotor |
Rear Mech | Shimano Deore RDM5100 11 |
Shifters | Shimano Deore M5100 11 |
Speed | 11 |
Rims | Merida Comp TR; 29mm inner rim width; Material: aluminium |
Front Hub | Shimano MT400-B; 110x15mm; 32 spokes; Centerlock |
Rear Hub | Shimano MT400-B; 148x12mm; 36 spokes; Centerlock; including removable lever with 4/6mm Allen key |
Spokes | Black stainless |
Front Tyre | Maxxis Rekon; 29" x 2.4"; wire bead |
Rear Tyre | Maxxis Rekon; 27.5" x 2.6"; EXO wire bead |
Seat Post | Merida Comp TR; 30.9mm diameter; in-line; S 100mm drop - M/L 125mm drop - XL/XXL 150mm drop with Shimano SL -MT500-IL lever |
Saddle | Merida Comp CC; V-mount |
Chainset | Shimano CRE70-B; 34 teeth chainwheel with Shimano FCEM600; 165mm length crank |
Bottom Bracket | Part of Shimano Steps motor |
Chain | Shimano CN-HG601-11 speed |
Pedals | VP Components, VPE-537 |
Battery Size (WH) | Shimano E8036; 630Wh battery |
Motor | Shimano EP8; 85Nm motor |
Merida eOne-Forty Size Chart
Size |
Height cm |
Height feet & Inches |
S (41cm) |
157 – 166 |
5’1” – 5’5” |
M (42cm) |
166 -173 |
5’5” – 5’8” |
L (43cm) |
173 - 180 |
5’8” – 5’11” |
XL (45cm) |
180 - 186 |
5’11” – 6’1” |
XXL (47cm) |
186 - 198 |
6’1” – 6’6” |
Merida eOne-Forty Geometry
Frame Size |
S |
M |
L |
XL |
XXL |
Tire Sizes |
29/27.5" |
29/27.5" |
29/27.5" |
29/27.5" |
29/27.5" |
Frame Size cm |
41 |
42 |
43 |
45 |
47 |
St Seat Tube mm |
405 |
415 |
430 |
450 |
470 |
Top Tube mm |
561 |
581 |
603 |
624 |
645 |
Chain Stay Length mm |
439.5 |
439.5 |
439.5 |
439.5 |
439.5 |
Head Tube Angle |
66.5° |
66.5° |
66.5° |
66.5° |
66.5° |
Seat Tube Angle |
76.5° |
76.5° |
76.5° |
76.5° |
76.5° |
Bottom Bracket Drop mm |
25 |
25 |
25 |
25 |
25 |
Head Tube mm |
110 |
115 |
120 |
125 |
130 |
Fork Length mm |
551 |
551 |
551 |
551 |
551 |
Reach mm |
410 |
430 |
450 |
469 |
489 |
S Stack mm |
622 |
627 |
631 |
635 |
640 |
Wheelbase mm |
1160 |
1182 |
1204 |
1226 |
1248 |
Stand Over Height mm |
729 |
730 |
727 |
733 |
747 |
What size frame do I need if I am between sizes? - read here
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