Bike Size Charts
Austria · Est. 2013

Woom Bike Size Chart

woom is a Vienna kids-bike company founded in 2013 by Christian Bezdeka and Marcus Ihlenfeld after they could not find light enough bikes for their own children. Models are designed around child proportions, not scaled-down adult frames, and are sold in dozens of countries. This page is woom’s wheel-size chart. Use height and inseam; woom 3 and woom 4 are adjacent wheels, not adult S and M.

Official website →
Size charts
1 table
Covers
82–165 cm
Models
10

Height ranges compared

Where Woom sizes actually sit

Used sizes share one height scale, so overlapping and identical ranges are visible before you read a single table.

Kids

Height ranges on this page, from 78 to 169 cm. Woom 1 (12"): 82–100 cm. Woom 2 (14"): 95–110 cm. Woom 3 (16"): 105–120 cm. Woom 4 (20"): 115–130 cm. Woom 5 (24"): 125–145 cm. Woom 6 (26"): 140–165 cm.

  1. Woom 1 (12")82–100 cm
  2. Woom 2 (14")95–110 cm
  3. Woom 3 (16")105–120 cm
  4. Woom 4 (20")115–130 cm
  5. Woom 5 (24")125–145 cm
  6. Woom 6 (26")140–165 cm
78 cm124 cm169 cm
Rider height ranges for Kids sizes on this page.

Size charts by bike type

Pick the category that matches the bike, then confirm the exact model.

Woom Kids & Youth Wheel Sizes

Youth and kids wheel-size starting ranges for Woom. Confirm inseam and brake reach before buying.

  • Wheel size

    Woom 1 (12")

    Height

    82-100 cm

    Inseam: 30-40 cm

  • Wheel size

    Woom 2 (14")

    Height

    95-110 cm

    Inseam: 37-46 cm

  • Wheel size

    Woom 3 (16")

    Height

    105-120 cm

    Inseam: 43-52 cm

  • Wheel size

    Woom 4 (20")

    Height

    115-130 cm

    Inseam: 50-59 cm

  • Wheel size

    Woom 5 (24")

    Height

    125-145 cm

    Inseam: 55-66 cm

  • Wheel size

    Woom 6 (26")

    Height

    140-165 cm

    Inseam: 63-76 cm

Starter kit

Helmet, light, lock, bottle, and a pant-leg strap. Size the bike here; buy the complete adult bike at a shop.

See more in Shop
Giro Register II MIPS adult bike helmet

Giro

Register II MIPS

Everyday adult helmet with MIPS and a simple dial fit.

Universal Adult, 54–61 cm

View on Amazon

Price and availability on Amazon

NiteRider Swift 300 USB bike headlight

NiteRider

Swift 300

Compact USB headlight for commuting and dusk rides.

Handlebar mount, 300 lumens

View on Amazon

Price and availability on Amazon

Kryptonite Evolution Mini-7 U-lock with cable

Kryptonite

Evolution Mini-7 with 4′ cable

Hardened U-lock plus a cable for wheels or a locked-together pair.

Fits most road, gravel, and hybrid frames

View on Amazon

Price and availability on Amazon

CamelBak Podium Chill 21 ounce bike bottle

CamelBak

Podium Chill 21 oz

Insulated squeeze bottle for everyday rides.

Fits a standard ~73 mm cage

View on Amazon

Price and availability on Amazon

Green Guru narrow pant-leg strap

Green Guru

Narrow pant-leg strap

Upcycled inner-tube strap that keeps a pant leg off the chain.

Adjustable hook-and-loop, about 16 in long

View on Amazon

Price and availability on Amazon

As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure.

How to measure

Height filters the chart. Cycling inseam decides which overlapping size to keep. The method is the same for every brand.

Height and inseam

Height

Take shoes off and stand tall, looking straight ahead. A helper should rest a flat object on the crown of your head, then run a tape from the floor to the underside of that object. Save the number in inches and centimeters — charts use both.

Inseam

Stand tall and barefoot with feet slightly apart. Ask a helper to measure vertically from your crotch to the floor. Keep your legs straight and feet flat.

Need the full sequence, including between-size rules? See how to choose a bike size.

FAQ

  • What Woom bike size do I need?

    Use your height on the Kids chart on this page. On the kids table, 95-100 cm sits in both Woom 1 (12") and Woom 2 (14"). Cycling inseam and standover pick the side. Then check stack and reach for the exact Woom model.

  • How do Woom kids bike sizes work?

    Woom kids sizes on this page are wheel diameters paired with height and inseam (Woom 1 (12") and Woom 2 (14")), not adult S/M/L or road centimeters. The child should stand over the bike and reach the brake levers before you buy.

  • Which Woom sizes are listed on this page?

    The Kids chart on this page includes Woom 1 (12"), Woom 2 (14"), Woom 3 (16") (82-165 cm on the kids table). Verify the current Woom model chart on the official site before purchase.

Sources

Where these charts come from

Brand-level ranges on this page are compiled from published size data. Confirm the current model chart before you buy.

Related charts

General chart and matching bike types