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Kids Bike

Specialized Jett vs Woom Original

Two of the highest-rated kids bike lines on the market. The Specialized Jett uses a Rider-First Engineered approach with proportional components for each wheel size, while the Woom Original is the European original of the modern lightweight kids bike movement, with proven kid-specific geometry and color-coded brake levers.

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Cyclist considering which bike to choose

Side-by-Side Overview

Specialized Jett

$300 - $720

Best for: Active kids who will ride frequently across pavement and easy dirt

Strengths

  • •Rider-First Engineered scales every component to size
  • •Lighter than mainstream kids bikes (within 1-2 lbs of Woom)
  • •Available at Specialized dealers for fit and service
  • •Strong resale value second only to Woom
  • •Wide range from 12" through 24" wheels

Considerations

  • •Slightly heavier than Woom at every size
  • •Less granular sizing system than Woom 1-6
  • •Higher price than mainstream brands
  • •Color options can be limited per region

Woom Woom Original

$400 - $600

Best for: Lightest possible kids bike with kid-specific everything

Strengths

  • •Lightest mainstream kids bikes by 1-4 lbs at every size
  • •Color-coded brake levers teach proper braking
  • •Kid-specific stem, crank length, and saddle on every model
  • •Excellent resale value (60-80% retained after 1-2 years)
  • •Sizing system (Woom 1-6) maps tightly to height ranges

Considerations

  • •Direct-to-consumer in many regions (no dealer test ride)
  • •Higher price than dealer brands at comparable specs
  • •Limited color and configuration options
  • •No suspension fork option in Original line

Head-to-Head Comparison

Stack (16" / Woom 3)
Specialized Jett415mm
Woom Woom Original425mm
Reach (16" / Woom 3)
Specialized Jett232mm
Woom Woom Original235mm
Approximate Weight (20")
Specialized Jett~17.5 lbs
Woom Woom Original~16.5 lbs ✓
Sizing Granularity
Specialized Jett5 sizes (12"-24")
Woom Woom Original6 sizes (Woom 1-6) ✓
Purchase Channel
Specialized JettLocal Specialized dealer ✓
Woom Woom OriginalDirect-to-consumer (online)
Resale Value
Specialized JettStrong
Woom Woom OriginalExcellent (highest in class) ✓
Entry Price (20")
Specialized Jett$520
Woom Woom Original$520

Size Chart Comparison

Specialized Jett
Size 16"
Stack:
415 mm
Reach:
232 mm
Size 20"
Stack:
480 mm
Reach:
272 mm
Size 24"
Stack:
535 mm
Reach:
312 mm
Woom Woom Original
Size 16" (Woom 3)
Stack:
425 mm
Reach:
235 mm
Size 20" (Woom 4)
Stack:
485 mm
Reach:
275 mm
Size 24" (Woom 5)
Stack:
540 mm
Reach:
315 mm

Geometry Comparison Chart

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Sizing Comparison

Geometry numbers are within 5-10mm at every wheel size, with Woom running fractionally taller in stack. Woom's sizing is more granular (six sizes vs Specialized's five), which helps when a child is between traditional wheel-size jumps. Both bikes can be sized accurately by child height alone - the brand's published height range is reliable for either.

Verdict

Choose the Woom Original if absolute lightest weight matters most - Woom is genuinely the lightest mainstream kids bike at every wheel size and the weight difference is meaningful for young riders. Choose the Specialized Jett if you want to test-ride at a dealer, value local service, or your child is between Woom sizes; the Jett's slightly heavier weight is offset by professional fit support and the Rider-First Engineered approach.

Best for Comfort

Woom Original - lighter weight and kid-specific component scaling reduce fatigue for young riders

Best for Performance

Woom Original - weight advantage is decisive for kids learning to ride uphill and accelerate

Specialized Jett vs Woom Woom Original FAQ

Shop Specialized & Woom Models

Available now from our partner retailers.

Woom Wow

Woom

Woom Wow

12-inch balance bike for ages 9 to 36 months (height 27"-39"). No-pedal design with a 6 lb aluminum frame, self-centering steering, and silent gliding wheels. Saddle 10.5". Includes a Buddy plush toy.

$190 - $210
View on Amazon
Woom GO 1

Woom

Woom GO 1

12-inch balance bike for toddlers 18 months to 3.5 years (inseam 10.0"-14.4", height 31"-40"). Weighs 6.4 lbs. Saddle 10.4"-14.4". Hand brake teaches early stopping; steering limiter prevents oversteering.

$240 - $260
View on Amazon

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Sizing Guides for These Brands

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Full Size Charts for These Brands

Specialized size chartFrame sizes by height and inseam across the Specialized rangeWoom size chartFrame sizes by height and inseam across the Woom range