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2021 Kellys

THEOS i50 29"/27.5" 630Wh

A 29″ / 27.5″ aluminum frame full suspension enduro e-bike with upper mid-range components.
Compare the full range

FrameAluminum
SuspensionFull, 150 / 160mm
ForkRockShox 35 Gold RL
ShockRockShox Deluxe Select
Wheels29″ / 27.5″ Aluminum
Drivetrain1 × 10
GroupsetDeore
MotorShimano 250W 60Nm mid-drive
Battery630Wh
BrakesShimano Deore Hydraulic Disc
SeatpostDropper
Where to Buy
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Insights
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)

28 mph

THEOS i50 29"/27.5" 630Wh

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'7"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
E-Mountainbike Magazine
Kellys Theos F90 E-MTB first ride review – Is this carbon revolution?

Mar 2022 · Mike Hunger

We tested the Kellys THEOS F90 eMTB with Shimano EP8 motor and 725 Wh battery and can tell you how it performs on the trail.

Highs
  • Innovative frame material

  • Balanced handling

  • Upright pedalling position

Lows
  • Only two frame sizes to choose from

Read Review

Geometry
Specs
Build
Frame

KELLYS e-FRAME Allmountain, Uni-Body Integrated Design / Four-bar link, 150mm rear travel, tapered HT, mullet 29 / 27.5+ wheelset, 12x148mm Boost thru axle

Fork

ROCK SHOX 35 GOLD RL (29) Boost, 160mm, DebonAir / Motion Control / Maxle Stealth 15mm thru axle

Travel160mm

Spring TypeAir

Shock

ROCK SHOX Deluxe Select R, DebonAir / Trunnion mount (205x65mm)

Travel150mm

Stem

KLS Alm/En 50 - diam 28.6mm / bar bore 31.8mm / length 60mm

Handlebar

KLS Alm/En 70 RiseBar - diam 31.8mm / rise 25mm / width 760mm

Saddle

fi´zi:k Taiga S-alloy rails

Seatpost

KS RAGE-I Remote Telescopic - diam 31.6mm / length 442mm, travel 125mm (S), 150mm (M - XL)

TypeDropper

Pedals

plastic

Grips

KLS Poison OneLockon

Groupset
Rear Derailleur

SHIMANO Deore M5120 (direct mount)

Crank

SHIMANO E8000 (38T) - length 170mm

Shifters

SHIMANO Deore M4100-R Rapidfire Plus (I-Spec EV)

Cassette

SHIMANO CS-HG4100-10 (11-46T)

Chain

KMC e10T (116 links)

Brakes

SHIMANO Deore (021) MT410 Hydraulic Disc

TypeShimano Deore Hydraulic Disc

Brake Levers

SHIMANO Deore (021) BL-M4100

Wheels
Rims

KLS Valor 3 Disc 622x30 front / 584x30 rear (32 holes)

Spokes

stainless steel black

Front Hub

SHIMANO MT400-B Disc Center Lock (15x110mm / 12x148mm / 32 holes)

Rear Hub

SHIMANO MT400-B Disc Center Lock (15x110mm / 12x148mm / 32 holes)

Tires

SCHWALBE Nobby Nic Performance 65-622 (29x2.60) ADDIX front / SCHWALBE Nobby Nic Performance 70-584 (27.5x2.80) ADDIX rear

Disc Rotors

203mm front / 203mm rear

Electric Components
Motor

SHIMANO STEPS E7000, 36V

Battery

KELLYS Re-Charge Li-ion internal 630Wh / capacity 17.5Ah

Display

SHIMANO SC-E5000 cycle computer with assist switch

Rider Notes
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First added April 12

Last updated April 12

Not listed for 1,895 days