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2025 Mongoose Lil Goose Girls 12" - Purple

In Stock
$319.95

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  Click & Collect Information

  • A valid photo ID must be presented upon collection.
  • If paying by credit card, the card must be presented upon collection to be verified.
  • The order name must match the name on both the ID and credit card.
  • We will SMS you once your order is received and ready for collection.

✅All bikes are sold fully assembled, ready to ride and are available for in store pick up or local delivery only.

2025 MONGOOSE LIL GOOSE 12" GIRLS BMX - PURPLE

The 2025 Mongoose Lil Goose boys 12" with KidFit technology is designed to grow with your child, featuring Mongoose's KidFit system, the bike includes adjustable components like the seat and handlebars, allowing for a customizable fit as your child grows. The lightweight aluminium frame and 12" wheels combined with KidFit specific geometry, make it the perfect first pedal bike. With a single-speed drivetrain and reliable rear coaster brake, the Lil Goose offers a smooth, easy to ride experience that helps young riders build confidence and skills. Buy your new 2025 Mongoose Lil Goose girls 12" BMX bike in South East Melbourne with Casey Cycles, visit us in-store or shop online with free local delivery within 20km of our Cranbourne store.

MONGOOSE KIDFIT TECHNOLOGY

  • Lightweight aluminium frame with forward pedal positioning making it easier to commence pedaling and build momentum.
  • Lower gear ratio for increased acceleration and to maintain momentum.
  • Narrower crank and pedal widths to match the width of a childs hips to allow for a stronger, more natural pedal stroke.
  • Lower seat position for better balance and maneuverability.
  • Smaller handlegrips designed to fit the hands of young riders.

SPEC

  • Frame: Tectonic T1, aluminium, 12" kids geometry, 100mm dropout.
  • Fork: Mongoose, 12", steel steerer, 100mm, bolt-on.
  • Crank: 1-piece forged steel 89mm, 24T steel chainring.
  • Bottom Bracket: American loose ball.
  • Gearing: 24/16.
  • Chain: KMC Z410.
  • Rims: Alloy single-wall 16H.
  • Front Hub: Steel, 3/8" axle 16H.
  • Rear Hub: Steel, 3/8" axle, 16H, coaster brake.
  • Spokes: 14G Stainless steel.
  • Pedals: Plastic body with 1/2" axle.
  • Handlebar: Mongoose Hi-Ten 5" handlebar.
  • Stem: Alloy/Steel 25 mm reach, quill.
  • Headset: Threaded, 1".
  • Brake Levers: Short reach.
  • Brakes: Aluminum caliper front, rear steel coaster brake.
  • Saddle: Mongoose Kids one piece.
  • Colour: Purple.

SIZING CALCULATOR

 

GEMOETRY

 

    Racer X Lady Goose Mity Goose Missy Goose Lil Goose
A Head Tube Angle (degrees) 73 73 73 73 73
B Seat Tube Angle (degrees) 70 70 69 69 69
C Horizontal Top Tube Length (mm) 451 437 383 357 299
D Seat Tube Length (mm) 300 290 250 240 190
F Head Tube Length (mm) 110 110 115 105 105
G Chainstay Length (mm) 380 380 305 305 241
H Fork Offset (mm) 35 40 30 25 25
I Bottom Bracket Drop (mm) 20 20 2 2 30
J Wheelbase (mm) 856 850 710 691 550
  Stem Length (mm) 45 45 30 30 30
  Bar Width (mm) 580 580 500 500 460
  Seat Post Size (mm) 27.2 27.2 27.2 27.2 27.2

 

  • Please note that the specification of this bike may be impacted by running substitution changes. 
  • Sizing is to be taken as recommendation only, please visit us in-store to confirm sizing and determine the best fit for your child.
  • Recommended Retail Prices are subject to change without notice and may vary depending on freighting and assembly costs.
  • Due to the terms of the Mongoose Bicycles dealer agreement all Mongoose bikes are sold fully assembled and available for in-store pick up or local delivery only and cannot be shipped.
SKU MGM55303F10OS
Barcode # 0038675258372
Brand Mongoose

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