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2021 Kellys

THEOS F90 29"/27.5" 720Wh

A 29″ / 27.5″ carbon frame full suspension enduro e-bike with high-end components.
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FrameCarbon
SuspensionFull, 170 / 180mm
ForkFox Factory Float 38
ShockRockShox Super Deluxe Ultimate
Wheels29″ / 27.5″ Aluminum
Drivetrain1 × 11 Electronic
GroupsetXT Di2
MotorShimano 85Nm mid-drive
Battery720Wh
BrakesShimano XT Hydraulic Disc
SeatpostDropper
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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)

25 mph

THEOS F90 29"/27.5" 720Wh

26 mph

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Highest gear

(descending)

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 THEOS F series - Thermoplastic Hybrid Steel-Carbon Composite a.k.a. FEATHER® by Rein4ced assembled by advanced robotic manufacturing / Think Link suspension system, 170mm rear travel, integrated removable battery, 1.8“ tapered HT, post mount 203mm, mullet 29 / 27.5+ wheelset, 12x148mm Boost thru axle / Made in EU

BB StandardBSA, 73mm, Threaded

Fork

FOX 38 Float Factory, Kashima Coat (29) Boost, 180mm, Float Evol / GRIP2 damper / 15QR thru axle

Travel180mm

Spring TypeAir

Shock

ROCK SHOX Super Deluxe Ultimate, DebonAir / RCT / Open-Threshold (230x65mm)

Travel170mm

Bottom Bracket

BSA, 73mm, threaded

Stem

RACE FACE Aeffect R 35 - diam 28.6mm / bar bore 35mm / 0° / length 50mm

Handlebar

RACE FACE Aeffect R 35 RiseBar - diam 35mm / rise 20mm / width 780mm

Saddle

fi´zi:k Taiga S-alloy rails

Seatpost

FOX Transfer Factory Remote Telescopic, Kashima Coat - diam 30.9mm / travel 150mm (M), 175mm (L)

TypeDropper

Pedals

plastic

Grips

KLS Poison

Groupset
Rear Derailleur

SHIMANO Deore XT Di2 M8050 (direct mount)

Crank

SHIMANO Deore XT M8150 (34T) - length 170mm

Shifters

SHIMANO Deore XT Di2 SW-M8050-R Firebolt

Cassette

SHIMANO CS-M7000-11 (11-46T)

Chain

KMC e11T (116 links)

Brakes

SHIMANO Deore XT M8120 Hydraulic Disc

TypeShimano XT Hydraulic Disc

Brake Levers

SHIMANO Deore XT BL-M8100 Hydraulic Disc

Wheels
Rims

DT SWISS H 1700 29 622x30 Center Lock front / DT SWISS H 1700 Spline 27.5 584x35 Center Lock rear (15x110mm / 12x148mm)

Tires

SCHWALBE Eddy Current Evo SuperTrail 65-622 (29x2.60) Tubeless Easy, ADDIX Soft, folding front / SCHWALBE Eddy Current Evo SuperGravity 70-584 (27.5x2.80) Tubeless Easy, ADDIX Soft, folding rear

Disc Rotors

SHIMANO MT800 203mm front / SHIMANO EM810 203mm rear

Electric Components
Motor

SHIMANO EP8 (021) 85Nm, 36V

Battery

KELLYS Re-Charge K1 Li-ion internal removable 720Wh / capacity 20Ah, co-developed by Kellys-BMZ

Display

SHIMANO SC-E7000

Rider Notes
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First added April 12

Last updated April 12

Not listed for 1,895 days