KELLYS Theos RS50 P Titanium M 29"/27.5" 820Wh, 2026

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

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PANASONIC GXM AMXXPRO motor - Compact, High Torque & Low weight drive unit, max torque 105 Nm, weight 2.56 kg

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KELLYS K2 AMXXPRO CARBON 820 Wh battery - superhigh energy density 236 Wh/kg, weight 3.48 kg, capacity 23 Ah, co-developed by KELLYS-BMZ

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battery capacity 820 Wh

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control unit PANASONIC

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PANASONIC GXM Center Display 501 - Bluetooth® 5.0 navigation, PANASONIC App conectivity

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ROCK SHOX Zeb Select (29") Boost fork, 160 mm, DebonAir+ / Charger RC damper / Maxle Stealth 15 mm thru axle

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rear shock ROCK SHOX Super Deluxe, DebonAir+ / R Hydraulic Bottom Out (210x55 mm)

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MIRANDA Delta cranks (34T) - length 170 mm

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SHIMANO Deore XT Linkglide M8130 derailleur (direct mount)

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SHIMANO Deore XT Linkglide SL-M8130-R11 Rapidfire Plus (I-Spec EV)

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number of gears 11

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SHIMANO Linkglide CS-LG400-11 (11-50T)

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SHIMANO Linkglide CS-LG500 chain

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brakes SHIMANO SLX M7120 Hydraulic Disc

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brake levers SHIMANO SLX BL-M7100

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GALFER Fixed Disc Wave® DB034W Center Lock brake discs, 203 mm front / 203 mm rear

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SHIMANO TC500-15-B / TC500-HM-B Disc Center Lock hubs (32 holes)

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DT SWISS H 552 Disc rims, 622x30 front / DT SWISS H 552 Disc rims, 584x30 rear (32 holes)

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SCHWALBE Magic Mary Evo Super Trail 62-622 (29 "x2.40) TLE front tyre, ADDIX Ultra Soft, folding

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SCHWALBE Big Betty Evo Super Trail 65-584 (27.5 "x2.60) TLE, ADDIX Soft, folding

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ACROS 1.8" tapered semi-integrated headset

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fixed axle front ROCK SHOX Maxle Stealth 15x110 mm

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stem KLS Alm/En 50 - diam 28.6 mm / bar bore 35 mm / length 35 mm

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KLS Alm/En 70 RiseBar handlebar - diam 35 mm / rise 18 mm / width 780 mm

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KLS Poison OneLockon grips

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LIMOTEC D1 Remote Telescopic seatpost - diam 30.9 mm / length 445 mm, travel 170 mm

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KLS Ascend saddle

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pedals plastic

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frame size M / L

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weight 24.80 kg (L)

Size chart

The sizes shown are our recommendations. These are approximate values as Specialized, CTM and GHOST each have specific frame geometries. The size of the bike's wheels also matters, so if in doubt about which size to choose, feel free to use our online chat or contact us on our helpline +421 947 974 140 .

Kids Bikes

wheel	age	height
12	2-4y	to 110 cm
16	4-5y	110- 120 cm
20	5-8y	120-135 cm
24	8-11y	135-145 cm

for Adults: wheel sizes 26, 28, 27,5 a 29

size	height
XXS	to 155 cm
XS	to 163 cm
S	to 170 cm
M	to 178 cm
L	to 185 cm
XL	to 193 cm
XXL	above 193 cm