THEOS RSX40 P SHADOW GREY 29/27.5" 725 Wh

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Weight and range are crucial. That’s why we created AMXXPRO: the world’s lightest full-power e-bike system, from just 6.1 kg.

The new AMXXPRO system, powering our entire new 2026 Kellys e-bike range, combines ultra-light components: a carbon battery and a high-performance magnesium motor.

PANASONIC GXM AMXXPRO motor: Co-developed by Kellys and Panasonic, with a specialized magnesium construction and weighing just 2.56 kg, it delivers powerful performance with up to 105 Nm of torque.

• KELLYS K2 AMXXPRO carbon batteries: Weighing up to 3.5 kg, available in 900 Wh, 820 Wh, and 725 Wh versions. With an energy density of up to 257 Wh/kg, they are up to 20% lighter than competing solutions while offering higher-capacity options.

AMXXPRO delivers more power and longer range with less total e-bike weight. No compromises - just a better riding experience.

Kellys AMXXPRO

Frame set

frame
KELLYS THEOS RSX-series - Superlight design, advanced robotic welded Al 6061-T6 / Designed & manufactured in EUROPE / Think Link® suspension system, 120 mm rear travel, integrated removable battery, 1.8" tapered HT, post mount 203 mm, mullet 29 / 27.5"+ wheelset, 12x148 mm Boost thru axle
fork
ROCK SHOX Recon Silver RL (29") Boost, 140 mm, Solo Air / Motion Control / Maxle Stealth 15 mm thru axle
rear shock
ROCK SHOX Deluxe Select, DebonAir+ / R damper (210x55 mm)
frame size
M / L

Drive

motor
PANASONIC GXM, max torque 100 Nm
battery
KELLYS K2 AMXXPRO CARBON 725 Wh - superhigh energy density 213 Wh/kg, weight 3.4 kg, capacity 20 Ah, co-developed by KELLYS-BMZ
switch unit
PANASONIC
computer display
PANASONIC GXM Center Display 501 - Bluetooth® 5.0 navigation, PANASONIC App conectivity
crankset
MIRANDA Miranda (34T) - length 170 mm
rear derailleur
SHIMANO Cues U4000 (direct mount)
shifters
SHIMANO Cues SL-U4000-9R Rapidfire Plus
speed
9
cassette sprocket
SHIMANO Linkglide CS-LG300-9 (11-46T)
chain
SHIMANO Linkglide CN-LG500
pedals
plastic

Brakes

brakes
SHIMANO MT200 Hydraulic Disc
brake levers
SHIMANO BL-MT200
brake rotors
GALFER Fixed Disc Wave® DB034W Center Lock, 203 mm front / 203 mm rear

Wheels

hubs
SHIMANO TC500-15-B / TC500-HM-B Disc Center Lock (32 holes)
rims
KLS Asesino 30 Disc 622x30 / 584x30 (32 holes)
spokes
stainless steel black
thru axle
predná ROCK SHOX Maxle Stealth 15x110 mm
fenders
aluminium alloy
rear tyre
SCHWALBE Johny Watts Performance 60-584 (27.5"x2.35) Race Guard, ADDIX, folding
front tyre
SCHWALBE Johny Watts Performance 60-622 (29"x2.35) Race Guard, ADDIX, folding

Cockpit

head parts
ACROS 1.8" tapered semi-integrated
stem
SATORI FASTBACK a-head adjustable - diam 28.6 mm / bar bore 31.8 mm / length 50 mm
handlebar
KLS Active RiseBar - diam 31.8 mm / rise 18 mm / width 760 mm
grips
KLS Wave LockOn 2Density ergonomic
seat post
KLS Active - diam 30.9 mm / length 350 mm
saddle
SELLE ROYAL SRX+

front light
TRELOCK BIKE-i Airflow 100
rear light
TRELOCK Duo Flat
accessories
alloy carrier, chainglider, adjustable kickstand, bell

Veľkosť rámu THEOS RSX40 P SHADOW GREY 29/27.5" 725 Wh

Geometria THEOS RSX40 P SHADOW GREY 29/27.5" 725 Wh

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