THEOS RS50 P TITANIUM 29/27.5" 820 Wh
THEOS RS50 P TITANIUM 29/27.5" 820 Wh 2691960

THEOS RS50 P TITANIUM 29/27.5" 820 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 RS-series - Superlight design, advanced robotic welded Al 6061-T6 / Designed & manufactured in EUROPE / Think Link® suspension system, 140 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 Zeb Select (29") Boost, 160 mm, DebonAir+ / Charger RC damper / Maxle Stealth 15 mm thru axle
rear shock
ROCK SHOX Super Deluxe, DebonAir+ / R Hydraulic Bottom Out (210x55 mm)
frame size
M / L

Drive

motor
PANASONIC GXM AMXXPRO - Compact, High Torque & Low weight drive unit, max torque 105 Nm, weight 2.56 kg
battery
KELLYS K2 AMXXPRO CARBON 820 Wh - superhigh energy density 236 Wh/kg, weight 3.48 kg, capacity 23 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 Deore XT Linkglide M8130 (direct mount)
shifters
SHIMANO Deore XT Linkglide SL-M8130-R11 Rapidfire Plus (I-Spec EV)
speed
11
cassette sprocket
SHIMANO Linkglide CS-LG400-11 (11-50T)
chain
SHIMANO Linkglide CN-LG500
pedals
plastic

Brakes

brakes
SHIMANO SLX M7120 Hydraulic Disc
brake levers
SHIMANO SLX BL-M7100
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
DT SWISS H 552 Disc 622x30 front / DT SWISS H 552 584x30 rear (32 holes)
thru axle
predná ROCK SHOX Maxle Stealth 15x110 mm
rear tyre
SCHWALBE Big Betty Evo Super Trail 65-584 (27.5"x2.60) TLE, ADDIX Soft, folding
front tyre
SCHWALBE Magic Mary Evo Super Trail 62-622 (29"x2.40) TLE, ADDIX Ultra Soft, folding

Cockpit

head parts
ACROS 1.8" tapered semi-integrated
stem
KLS Alm/En 50 - diam 28.6 mm / bar bore 35 mm / length 35 mm
handlebar
KLS Alm/En 70 RiseBar - diam 35 mm / rise 18 mm / width 780 mm
grips
KLS Poison OneLockon
seat post
LIMOTEC D1 Remote Telescopic - diam 30.9 mm / length 445 mm, travel 170 mm
saddle
KLS Ascend

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