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2021 Mondraker

Thundra

A 27.5″ aluminum frame hardtail trail e-bike with upper mid-range components.

Weight48.5 lbs  
FrameAluminum
SuspensionHardtail, 120mm
ForkRockShox Recon Silver RL
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetSX Eagle
MotorShimano 250W 60Nm mid-drive
Battery360Wh
BrakesShimano Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Thundra
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

Thundra

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

Aluminum

BB StandardSTEPS, Press Fit

Fork

RockShox Recon Silver RL, Motion Control damper, Solo Air spring, compression adjust (low-speed to lock), rebound adjust, 42mm offset

Travel120mm

Spring TypeAir

Shock

None

Bottom Bracket

STEPS, press-fit

Headset

Onoff Saturn, sealed angular contact bearings

Stem

Onoff Sulfur FG, 6061 forged alloy, 30mm length, 31.8mm bar clamp, 0° rise

Handlebar

Onoff Sulfur 1.0, double-butted 6061 alloy, 20mm rise, 780mm width, 9° backsweep, 5° upsweep, 31.8mm clamp diameter

Saddle

Mondraker e-MTB custom

Seatpost

Onoff Sulfur 0-R, 6061 T6 3D forged alloy, 400mm length

TypeRigid

Pedals

None

Grips

Onoff Twin, single lock-on, 135mm length

Groupset
Rear Derailleur

SRAM SX Eagle, 12-speed, Type 3 roller bearing clutch, cage lock, X-ACTUATION 1:1

Front Derailleur

None

Crank

Shimano STEPS E8000, 165mm length

Shifters

SRAM SX Eagle, 12-speed, X-ACTUATION 1:1, single click

Cassette

SRAM SX Eagle PG-1210, 12-speed, 11-50 tooth

Chain

SRAM SX Eagle, 12-speed, with Powerlock

Chain Guide

None

Brakes

Shimano MT201, 2-piston, resin pads, Shimano RT66 6-bolt rotors (203mm front, 180mm rear)

TypeShimano Hydraulic Disc

Brake Levers

Shimano MT201, tooled reach adjust

Wheels
Rims

MDK-HP1, 30mm (29") or 35mm (27.5+) internal width, tubeless ready, 32 hole

Spokes

CN round stainless steel

Front Hub

Formula, sealed bearings, DC711 15x110mm Boost front, EHL148 12x148mm Boost rear with HG driver

Rear Hub

Formula, sealed bearings, DC711 15x110mm Boost front, EHL148 12x148mm Boost rear with HG driver

Tires

Maxxis Rekon, Dual Compound, EXO, TR, 60 TPI, folding bead, 2.6" (29") or 2.8" (27.5+) width

Electric Components
Motor

Shimano STEPS E7000

Battery

Simplo, integrated, non-removable, Optional external battery: Simplo 360 Wh

Remote

Shimano STEPS E5000

Display

Shimano STEPS E5000

Rider Notes
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First added December 7

Last updated May 4

Not listed for 1,851 days