ORBEA KIMU 27 H20 Aloha Green 01191780079 / 52T50485538 Ready for immediate delivery!

Orbea Kimu 27 H20 Aloha Green – 27.5” junior bike for trail riding and active use

The Orbea Kimu 27 H20 Aloha Green is a high-quality 27.5-inch junior bike for the young rider ready to transition from a kids' bike toward true mountain biking. The lightweight Orbea Kimu 27.5 aluminum frame, RockShox Judy Silver TK air suspension fork, Shimano Cues 1x10 drivetrain, and Shimano MT410 hydraulic disc brakes make this bike a high-performance, safe, and versatile choice for trails, gravel roads, forest paths, and active everyday use.

The 27.5” wheel size provides increased rollability, stability, and off-road capability compared to smaller junior bikes. The Kenda Booster 2.40” tires offer excellent grip and comfort on varied terrain, and the 110 mm RockShox suspension fork improves control over roots, gravel, and uneven trails. The result is a bike that feels like a real mountain bike to the young rider, while featuring dimensions and components perfectly suited for junior use.

The Aloha Green colorway finishes the bike with a fresh and distinctive look. The adjustable stem for growth, 155 mm crank length, 680 mm handlebar, and a riding position designed for children/teens make the Kimu 27 H20 a long-lasting choice for the developing rider. This is an excellent bike for a young cyclist who wants to ride further, faster, and on more technical trails than a traditional children's bike allows.

Orbea Kimu 27 H20 Aloha Green – a thoroughbred mountain bike for the young rider

The Orbea Kimu 27 H20 is designed for junior riders who need a lightweight yet genuinely off-road capable bike to develop their riding skills. The 27.5” wheels, low and controllable frame geometry, and high-quality component selection make this bike a great option for the young rider who, in addition to school commutes and daily riding, ventures onto gravel roads, forest paths, and trail-style routes.

The bike's Orbea Kimu 27.5 frame is constructed from aluminum, making the whole package durable, practical, and suitable for junior use. The geometry is clearly mountain-bike oriented: the slack 66.5-degree head angle, 420 mm chainstay, and 1088 mm wheelbase bring stability to faster riding and more technical terrain. This helps the young rider learn proper riding lines, weight distribution, and control with a more reliable feel.

The RockShox Judy Silver TK suspension fork with 110 mm of travel and a 15x110 Boost axle raises the Kimu 27 H20 clearly above a standard junior bike. The air suspension fork dampens bumps, improves front tire grip, and provides more control when the trail turns rocky, rooty, or otherwise technical. This makes the bike also suitable for a rider who wants to advance in actual off-road riding.

The drivetrain is powered by the Shimano Cues 1x10 system. The Shimano Cues U6000 GS Shadow rear derailleur, Shimano Cues SL-U6050 S-Reach shifter, and 11–48T cassette offer a wide gear range for hills, transitions, and varied terrain. The simple 1x structure reduces the need for maintenance and makes shifting clear and easy for a young rider.

Shimano MT410 hydraulic disc brakes provide reliable stopping power and a good feel. A hydraulic disc brake is an important feature on a young rider's mountain bike, as it requires less finger strength and performs reliably even on wet surfaces, loose gravel, and downhill sections. The excellent modulation of the brakes increases control and helps develop riding technique more safely.

The Kenda Booster 2.40” tires and WH 2.1 aluminum wheels form a durable and versatile wheelset. The wide tire improves grip and comfort on trails but still rolls well on harder surfaces. The Aloha Green color, pedals equipped with reflectors, and Orbea's growth-adjustable stem make the bike both a striking and practical choice for the active young rider.

Technical specifications and features

Key features

• Lightweight Orbea Kimu 27.5 aluminum frame
• 27.5” wheel size for young and growing riders
• RockShox Judy Silver TK suspension fork
• 110 mm travel and 15x110 Boost front axle
• Shimano Cues 1x10 drivetrain
• Shimano Cues U6000 GS Shadow rear derailleur
• Shimano CS-LG300 11–48T 10-speed cassette
• Shimano MT410 hydraulic disc brakes
• Kenda Booster 2.40” 30 TPI tires
• WH 2.1 aluminum wheels, 27.5”, 28H
• 680 mm wide aluminum MTB handlebar
• Adjustable Orbea MTB custom stem with +15 mm spacer
• 155 mm crank length for junior use
• SD 0.4 junior saddle
• VP-229 pedals with reflectors
• Aloha Green colorway

Technical specifications

• Product: Orbea Kimu 27 H20 Aloha Green
• EAN: 8434446118470
• Product code: U011J5 / Orbea REF U011
• Frame: Orbea Kimu 27.5, aluminum
• Fork: RockShox Judy Silver TK, 110 mm, 15x110 Boost
• Headset: FSA 1-1/8” – 1-1/2” Integrated
• Crankset: Alloy, 30T, 155 mm
• Shifter: Shimano Cues SL-U6050 S-Reach
• Rear derailleur: Shimano Cues U6000 GS Shadow
• Cassette: Shimano CS-LG300, 11–48T, 10-speed
• Chain: KMC eGlide
• Brakes: Shimano MT410 Hydraulic Disc
• Wheels: WH 2.1, aluminum, 27.5”, 28H
• Tires: Kenda Booster 2.40”, 30 TPI
• Handlebar: MTB handlebar, aluminum, 31.6 mm, width 680 mm
• Stem: MTB custom stem, aluminum, +15 mm spacer
• Saddle: SD 0.4, 234x138 mm
• Seatpost: Alloy, 31.6 mm, setback 0
• Pedals: VP-229 Black, reflectors
• Wheel size: 27.5”
• Color: Aloha Green
• Size: One Size / U

Geometry data

• Seat tube: 330 mm
• Top tube effective: 543 mm
• Head tube: 90 mm
• Chainstay: 420 mm
• Bottom bracket drop: 45 mm
• Bottom bracket height: 303 mm
• Wheelbase: 1088 mm
• Head angle: 66.5°
• Seat angle: 75.5°
• Rake: 44 mm
• Standover: 683 mm
• Reach: 390 mm
• Stack: 582 mm
• Fork length: 514 mm
• Saddle height min: 500 mm
• Saddle height max: 630 mm