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Specialized Riprock Coaster 16" Kids Bike

Specialized Riprock Coaster 16" Kids Bike

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Regular price $274.99
Regular price $325.00 Sale price $274.99
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Congratulations on Your New Kids Bike

Remember your first experience on two wheels? The most important factor in a new kids bike is the fun factor! No matter where your kid is on their cycling journey we've got you covered. From balance bikes to Jr. mountain bikes we've got what your Jr. Shredder's been waiting for!

If you purchased your bike from a Bicycle Warehouse store we've done most of the work for you already and you. If you purchased the bike online make sure to follow the manufacturer's assembly instructions per your owner’s manual. 

Make sure to register your new bike with the manufacturer to ensure you receive any support should you need it down the road.

Giant Bikes

Santa Cruz Bikes

Niner Bikes

DiamondBack Bikes

Raleigh Bikes

Make sure you have all the right tools to get the job done. Most of the adjustments can be done with a standard bike multi-tool however you’ll want a torque wrench to properly tighten components back up. This is especially true when working with carbon fiber components. Torque settings can be found stamped on the component, or in the manufacturer’s literature

Assembly Time

  • Level 1 - "Never-Ever" Never assembled a bike and working with tools isn't your forte'
    • Assembly Time 60-80 minutes
  • Level 2 - "I'm Handy" Never assembled a bike yet you are pretty mechanically handy.
    • Assembly Time 40-50 minutes
  • Level 3 - "DIY Bike Mechanic" Never fully assembled a bike but have done a little bike tuning
    • Assembly Time 30-40 minutes
  • Level 4 - "Certified" You’re a skilled bicycle mechanic
    • Time yourself, I bet you can assemble this bike in less than 10 minutes

Tools Needed

  1. 4, 5mm Hex Allen Keys* (comes with bicycle)
  2. 15mm Pedal Wrench or 6mm Allen * (comes with bicycle)
  3. Bike Grease*
  4. Bicycle Tire Pump*
  5. #2 Phillips Head and Flathead Screwdriver *
  6. Box Cutter or Strong Scissors
  7. Needle Nose Pliers
  8. Cable Cutters
  9. Shock Pump* (comes with some bicycles)

* Required

How to Setup Your New Kids Bike

Adjusting the Saddle

To adjust the height of your saddle, you will need a way to hold the bike while you hop on to size up. A friend can help by facing you and straddling the front wheel while holding the handlebar. Alternatively, you can lean the bike against a solid surface.

Achieve a 25- to 30-degree bend in your knee. You can check this by putting the balls of your feet on the pedals and extending one leg to the bottom extreme of the pedal stroke.

How to Adjust

Use an Allen wrench, or a quick-release lever if that’s what is securing the seat post) to loosen the binder bolt and slide the seat post up or down accordingly. Pay attention to the “minimum insertion marking” etched into the seat post, as that is the lowest point at which the seat post can safely be ridden on. Once the saddle is at the correct height, retighten the binder bolt to the specified torque setting or re-tighten the quick-release lever.

Saddle Position

To verify your desired saddle position you will need a simple plumb bob, which is a string with a weight tied on the end. With your saddle at the proper height and one pedal in the 3 o’clock position, center the ball of your foot over the axle of that pedal.
Dangle the plumb bob off of the front of your knee so that the weight is hanging just above your foot. If the saddle is in an optimal position you can imagine a line running along the plumb bob’s string running right through the axle of the pedal. Have someone stand next to you to verify this makes it easier.

Saddle Angle

An ideal saddle angle is going to be level with the ground. A tilted saddle can cause hop and back pain, requiring you to waste energy adjusting your body while riding. A bubble level can be used to verify your bike is level.

How to Adjust

Loosen the Allen bolts securing the clamp that is attached to the saddle rails. Designs vary however they all function similarly. Slide the saddle forward or backward while rotating it into a level position.

With the saddle now level retighten the bolts and double-check your adjustments. When you’ve verified the height, angle, and level of the saddle is where you want it you can now retighten the saddle down back to torque specifications.

Adjusting the Brake Levers

Getting brake levers adjusted correctly helps with the ergonomics of your handlebars; improving your reaction time, bike handling, and eliminating fatigue.

Brake-Lever Angle

When the brake levers are at an optimal angle, your wrists will be straight. If your wrists have to rotate up to grab the brake lever it can cause you to lean too far forward while riding, reinforcing bad technique. If your wrists rotate down to grab the brake lever riders tend to drop their elbows sacrificing stability and control.

How to Adjust

Loosen the Allen bolt on the brake lever clamp and rotate until the levers are at a 45-degree angle. Retighten the bolt to the specified torque setting.

Brake Lever Position on the Handlebar

While riders often have their preference as to how many fingers they prefer on the brake lever and on the grip, most brakes are designed accommodate a two-finger grip, leaving two fingers and a thumb to hold onto the handlebar.

When setting up your lever position on the handlebar the goal is to have your middle finger nestled against the curved end of the brake lever.

How to adjust

Adjusting the lever position on the bar is simple. Loosen the Allen bolt on the brake lever clamp and slide the clamp inward or outward on the handlebar. Recheck the lever alignment and ensure it’s properly spaced and angled. Retighten the bolt to the specified torque setting.

Adjusting the Shifters

Once your brake levers are dialed into the proper position, you can move your shifters to achieve the most ergonomic setup possible. You’ll want to avoid having to rotate your wrists when you shift gears. Start by placing your hands in a natural position on the handlebar grips, and resting your finger(s) on the brake lever. Now see if you can comfortable operate the shift levers with your thumbs.

How to Adjust

Shift levers adjust the same way as brake levers, with the Allen bolt holding the clamp shut. Loosen the bolts and move the shifters, twisting and sliding them into the desired position. Then retighten the Allen bolts to the specified torque settings.

How to Setup Your Tire Pressure

Tire pressure should be checked before every ride as many factors affect tire pressure, and tires lose pressure over time. Generally, it’s best to run your tire pressure as low as possible, while staying within the recommended PSI range stated on the sidewall of your tire. Running a lower PSI offers noticeable performance improvements including a softer, more forgiving ride and better traction. If you run the PSI too low you can risk pinch flats or burping the tire.

How to Adjust

The tools needed to inflate your tires include a pressure gauge and a pump. Many floor pumps feature a built-in pressure gauge for easy airing up. In addition, most modern pumps can fit both Presta and Schrader type air valves. A rough guideline for tire inflating is as follows, although as you get more experience most riders develop their own preferences on air pressure and PSI levels.

Follow the PSI range stamped on the sidewall of your tire. Adjust this accordingly in relation to the terrain you are riding on as well as rider & cargo weight.

Rider + Cargo Weight

PSI Adjustment

100–160 lbs

Use the minimum PSI.

160–200 lbs

Add 0 to 5 PSI to the minimum.

200 lbs. or more

 Add 5 to 10 PSI to the minimum.

Quick Tips


Shifting the gears on a bicycle can be a daunting task at first, with a lot of numbers and often two derailleurs to keep track of. Learning how to effectively shift gears is a basic skill that continues to grow and improve even for veteran riders. Proper shifting will increase speed, reduce rider fatigue, and improve endurance.

Shifting 101 - A How-To Guide on Shifting Bike Gears


Ride with confidence and never question your ability to stop. Keep your bike brakes well maintained with replacement pads, levers, rotors, calipers, and more. From disc to rim brakes ride faster knowing your brakes are ready to perform.

Braking 101 - A How To Guide on Bike Brakes

Tune Up Guide - Mountain Bike Disc Brakes Tips & The Best Techniques

Cleaning Your Bike

Cleaning your bike is essential to keeping your bike running smoothly and performing at its highest. Proper bike cleaning should be a big part of your bicycle maintenance routine. Washing your bike regularly will ensure all your expensive bike parts have a long and happy life. Whether you ride a road bike or a mountain bike, taking the time to wash your bike (especially your drivetrain) is a necessity. For road bikes, we suggest degreasing and "re-greasing" your drivetrain every 100 miles. For mountain bikes, you should clean your bike after every muddy ride or every couple of weeks with regular use in dry climates.

The Best Method for Washing Your Bicycle - Keep Your Bike Running Smoother, Longer!

Service Intervals -- A well-maintained bike is a Happy Bike☺

If you ride a couple of times per month or more we recommend the following service intervals

  • Immediately
    • If anything is not tight or working properly bring it in right away for service.
  • Every 3 months
    • Bring in your bike for a Deluxe Tune-Up (complete adjustments, wash, and re-lube).
  • Every 6 months
    • Bring in your bike for a Minor Overhaul (tune-up plus removal of the drive train and soak in solvent tank for longer life).
  • Every 12 months
    • Bring in your bike for a Major Overhaul (strip down to frame, solvent tank soak, bearings greased and deluxe tune).

Get Fully Equipped!

Being fully equipped with the right gear helps you have more freedom, fitness and fun.

We've divided our list of gear into Must Haves, Should Haves and Nice to Haves for you and your bike. Whether you're just getting started or looking to step your riding game up we've got the best gear to take your riding to the next level.

Learn How to Enjoy Your Ride More

Why Choose Bicycle Warehouse

We will keep you posted about our upcoming rides, events, and tips or visit on-line at Instagram, Facebook, Twitter, and our website at

We thank you for your business and stand ready to be of service on your next visit. Got feedback? Send us an email and let us know how we are doing. It's the only way we can keep improving. 


Shipped Direct to Your Home

Our Platinum Pro Assembly fee of only $75 will be added at checkout. Your Specialized kids bike will be built, fine-tuned and expertly packaged by our certified team of bike techs. Your new bike comes 90% built, reassembly is quick and easy with our video guides. Your new bike ships within 3-5 business days.

Pick Up at Bicycle Warehouse

$25 Ready to Ride

Bikes comes 100% built and ready to ride. This fee includes professional assembly & setup, one basic Master Service and free warranty processing. Shipped bikes are not charged this fee.

Bicycle Warehosue now offers optional Route Package Protection. Route Package Protection offers peace of mind for your shipments by providing shipping insurance. This coverage ensures that if your package is lost in transit, stolen, or damaged, you're protected. For a small percentage of the total value of your order, Route will promptly generate a replacement order or issue a refund if you no longer want the items.


At Bicycle Warehouse your satisfaction is our top priority. We understand the importance of your happiness with every purchase, which is why we proudly offer our 30 Day Love It Guarantee for your unused gear and 14 days on all bikes. Our exchange and returns process is quick and easy.

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Get your dream bike today with FREE financing (12 months same as cash, on approved credit). For more information visit our financing page and get approved.

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Introducing the Specialized Riprock Coaster 16" Kids Bike - where riding transforms into pure, unadulterated FUN! Specialized stripped away the unnecessary complications and infused this bike with an overdose of exhilaration. Behold, a ride that radiates joy!

Specialized meticulously crafted this two-wheeled wonderland to be a kid's dream come true. Equipped with features that will have your little adventurers grinning from ear to ear, including a coaster brake for those adrenaline-pumping stops, and don't even get us started on those wide 16x2.3" tires - they're the stability superheroes that boost your child's confidence to astronomical levels.

Specialized fortified this mini-beast with components tougher than a fortress wall. We're talking about a resilience that laughs in the face of playground abuse and backyard escapades. This isn't just a bike; it's a trusty companion built to withstand the tests of time, tantrums, and triumphant victories.

Remember those times when you wished for a bike that could teleport you to the trails of your dreams? Well, this is it. The Riprock Coaster 16 is the portal to adventure, a time machine to your fondest memories. We've brewed a potion of pure childhood nostalgia, and it's ready for your little ripper to guzzle down.

In a nutshell, this isn't just any bike – it's a time-tested ticket to a world of laughter, exploration, and unfettered excitement. Your young trailblazer deserves nothing less than the Riprock Coaster 16 - a ride so fantastic, you might just feel a twinge of envy that you didn't have one when you were their age. Let the good times roll!


  • The A1 premium aluminum frame is lightweight and built to withstand the tough use by kids, while the geometry features an ultra-low standover that makes it easy for your little ones to fit on and grow with the bike.
  • Steel coaster brake is a reliable, easy to use brake perfect for safe stops and awesome skids.
  • 16x2.3" Rhythm Lite tires deliver tons of traction, comfort, stability, and fun over all types of terrain.



Specialized A1 Premium Aluminum


Hi-Ten steel

Seat Binder

Bolt-type, 28.6mm


Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter


BMX, steel, 10-degree backsweep, 4-degree upsweep, 115mm rise, 520mm width, 22.2mm


Specialized, slip-on


Specialized Kids' Henge


Steel, 22.2mm


KMC Z510, single-speed, anti-drop, 1/2"x1/8"


Hi-Ten steel, 89mm


Steel, 26T

Bottom Bracket

Feimin FP-B701, 68MM


Nylon platform w/ reflectors


16" alloy, 16mm depth, 21mm internal width, 28h

Front Hub

Steel, bolt-on, 100mm spacing, loose ball bearings, 28h

Rear Hub

Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 16T cog, 28h


Stainless, 14g

Front Tire

Rhythm Lite, 30 TPI, wire bead, 16x2.3"

Rear Tire

Rhythm Lite, 30 TPI, wire bead, 16x2.3"

Inner Tubes

Schrader valve


Crank Length 3.5inmm
Stem Length 37mm
Handlebar Width 520mm
Seatpost Length 230mm
Saddle Width 135mm
Seat Tube Length, BB Center to Top 210mm
Top Tube Length, Horizontal 395mm
BB Drop 27mm
Chainstay Length 310mm
Seat Tube Angle 71°
Head Tube Angle 70°
Fork Rake 5mm
Trail 72mm
Front Center 399mm
Wheelbase 707mm
Standover Height 405mm
Head Tube Length 80mm
Reach 272mm
Stack 358mm