Author CHARISMA 55i Road Bike Red 55 cm
Author CHARISMA 55i Road Bike Red 52 cm
Lightweight and fast, the Author ULTRASONIC 26 is a youth bike built for performance and everyday adventure — perfect for young riders who value speed and style.
The Author ULTRASONIC 26 combines advanced aluminium engineering with a sporty, modern design. Its triple-butted hydroformed 6061 aluminium frame offers excellent stiffness with minimal weight.
Equipped with a 10-speed SHIMANO Cues 6000 drivetrain and TEKTRO HD-M276 hydraulic disc brakes, it delivers precise shifting and confident stopping power in any conditions.
KENDA Small Block Eight tires ensure grip and control on both pavement and trails, while the overall geometry provides comfort and maneuverability for younger cyclists.
Technical specifications:
Frame size: 13.5”
Wheel size: 26”
Frame material: triple-butted hydroformed aluminium 6061
Fork: aluminium 6061 26”, 1.5" tapered
Headset: PRESTINE Integrated 1.5" tapered
Rear derailleur: SHIMANO Cues 6000
Shifters: SHIMANO Cues 6000 (10-speed)
Brakes: TEKTRO HD-M276 hydraulic disc brakes 6”
Brake levers: TEKTRO HD-M276 WS
Crankset: PROWHEEL, 32T (152 mm)
Bottom bracket: PROWHEEL BB unit
Cassette: SHIMANO CS-LG400-10, 11–48 (10-speed)
Chain: KMC XGlide
Pedals: composite
Rims: AUTHOR Argon 26, 32 holes
Spokes: stainless steel, black 2.0 mm
Hubs: AUTHOR Xenon, 32 holes
Tyres: KENDA Small Block Eight 26" × 2.10" folding
Handlebar: AUTHOR Flat Top 600 mm
Stem: AUTHOR aluminium
Grips: AUTHOR rubber
Saddle: AUTHOR Champion
Seatpost: AUTHOR aluminium (31.6 mm)
Seat clamp: AUTHOR (34.9 mm)
Colour: Lime-Navy
Weight: 10.8 kg
Rider height: 130–150 cm
Purpose: urban / recreational youth bike
Shipping:
We ship across the EU.
Please sign in first.
Sign in
Create a free account to save loved items.
Sign in