About Bike Delivery

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Timelines

Delivered ready to ride in 10 to 14 days.

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Place your order

Select the product you are interested in, click delivery, type in your postcode, and select Bike Delivery. If this is not available there is no available stock nearby.

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Order Confirmation

Once your order is placed we will be in contact with you within 2 hours to confirm your order.

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Bike Build

Your bike will be built up at your local 99 bikes by one of our expert mechanics and safety checked prior to delivery.

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Delivery

Your bike is delivered to your door by a 99 Bikes expert who will walk you through your new bike and answer any questions you may have.

Next Business Day Delivery

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Timelines

Delivered before 8pm next business day.

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Place your Order

All orders placed before midnight will be delivered next business day before 8pm.

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Picked for Delivery

Your local 99 Bikes store will prepare your order ready for dispatch.

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Delivery

One of our friendly 99 Delivery team members will deliver your order.

Shipping & Delivery Options

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At 99 Bikes, we offer multiple delivery options to suit your needs. Here’s a quick overview:

Click & Collect:
Order online and pick up your item from a nearby store — free and often same-day!

Standard Delivery:
Available for most parts and accessories.
Estimated delivery:

  • Metro: 2–14 business days
  • Regional & Remote: Up to 21 business days

Express Delivery:
Available for most parts and accessories.
Estimated delivery:

  • Metro: 1–6 business days
  • Regional & Remote: Up to 21 business days

Boxed Bike Delivery:
For selected bikes. Delivered boxed to your address and ready to be assembled in 1 - 2 weeks.

Note: Delivery times are an estimate and actual delivery times may vary based on public holidays and peak periods. Bulky items may take longer.
For full details, delivery estimates and more information, please visit our Shipping & Delivery Info page.

Your store:
Click & Collect:
Deliver to:

Mongoose Rockadile 20 Kids Bike Grey

$499.00 $474.00   ? You automatically get Club Price when buying online. But there are extra benefits if you join Club 99.
In stock

PAYMENT OPTIONS

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Product Limit $30 - $2,000 $30 - $3000 $350 - $1,000 Up to $8,000
Minimum Purchase $30 $50 $350 $1,000
Interest Free Period Always interest free Always interest free Always interest free Up to 12 months interest free*
Set up Fee No sign-up or late fees No sign-up or monthly account fees No set-up fee A one-off establishment fee may apply
Minimum Repayments Four equal interest free payments Four instalments due every 2 weeks $40/month From $40/month or 3% of the outstanding balance (whichever is greater)*
Payment Frequency Fortnightly Fortnightly Weekly, fortnightly and monthly Set your schedule to weekly, fortnightly or monthly
Monthly Account Fee No account fee No account fee $9.95/month (waived if your statement balance is zero) $9.95/month (waived if nothing owing)
Late Fee No late fees Learn more about Afterpay late fees Click here Learn more about Zip Pay late fees Click here Learn more about Zip Pay late fees Click here
More Information More information More information More information More information
Request a Price Beat

Up to 12 months interest free

Features

Perfect Ride Guarantee
If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.

First Free Tune-up
Every bike comes with a complimentary free tune-up and safety check.

Please note that, in order to reduce production and delivery times, bike specifications are subject to change by the manufacturer without notice. Please be aware that these changes might not be reflected on product pages and images.

The Mongoose Rockadile is a youth mountain bike which is at home on the bike paths or easier trails. Designed for 6-9 years olds the Rockadile is built around the tough and light T1 aluminium frame with internal cable routing to minimise maintenance. The Xposure fork with 60mm travel gives this bike some capability to head off-road and is more than enough for most kids on the dirt. The 7 speed Shimano drivetrain will help give kids experience on a geared bike with a range of gears to help them climb and descend. The Rockadile rolls on tough aluminium double wall rims and 20" Mongoose tyres with a good combination of grip and speed. Kids can ride in control with alloy rim brakes for simple and easy braking power. The finishing touch is the alloy hubs and QR front and rear axles for convenience. The Mongoose Rockadile is a great first mountain bike for any kids, it has everything kids need to develop their skill and have fun, without any unnecessary extras.

Features

  • 7 Speeddrivetrain; Samox® 140 mm crank; Shimano® Tourney derailleur and Revo shifter
  • 20” aluminium double wall wheels with 2.35” mountain tyres
  • Aluminium hubs with 9 mm QR front and rear axles
More Information
SKU MGM51201M20OS
Season 2021
Size 20inch - G
Click & Collect Yes
Colour Grey
Frame Material Alloy
Fork Xposure, 20", steel steerer, lockout, 9 mm x 100 mm, QR, 60 mm travel
Fork Material Steel
Front Travel under 100mm
Front Gears Single
Groupset Brand Shimano
Rear Gears 7 Speed
Crankset Samox SAC30-111P, aluminum, 32T
Pedals Mongoose, nylon
Chain KMC HV500
Brake Type Rim Brake
Brakes Radius, linear pull, aluminum
Shifters Shimano RS36, 7
Brake Levers Radius, linear pull, aluminum
Derailleur Rear Shimano RD-FT35
Cassette Sunrace, 7-speed, 14-34T
Wheel Size 20"
Tyres Mongoose, 20 in x 2.1 in, wire bead
Rims Xposure, aluminum double wall, 23 mm ID, 32H
Hubs UB Xposure, aluminum,
Spokes 14G, stainless steel
Bottom Bracket Feimin FP-B609W, cartridge, 3-piece, threaded 68 mm shell
Handlebar Mongoose, aluminum, 520 mm width, 6° rise, 25.4 mm clamp
Headset Threadless, ZS44/ZS44, retainer bearing
Grips Mongoose, single density
Stem Xposure diecast, threadless, 7°, 31.8 mm clamp
Saddle Mongoose Kids, integrated rails
Seatpost Xposure, aluminum, 350 mm, 20 mm offset, 31.6 mm
Sizing 20 Inch

Mongoose Kids Bike Sizing Chart

Rider's Height (cm)
75
85
95
105
115
125
135
145
155
165
175
12" Wheel
16" Wheel
20" Wheel
24" Wheel
26" Wheel

This is an accurate estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.

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