Icon
Clear Icon
Search Icon
Clear Icon
Search Icon
Clear Icon
Logo Icon
  • Bikes
  • Parts
  • Apparel
  • Accessories
  • Custom
  • Sale
  • Inside Specialized
  • Support
  • Logo Icon
    Custom
    Arrow Back Icon
    Logo Icon
    Inside Specialized
    Arrow Back Icon

    Riprock 20

    Icon

    Riprock 20

    Delivery Icon

    We deliver! Just say when and how.

    Freedom is the absence of fear. And riding fearlessly requires a bike that can handle your kid’s imagination. It’s why we designed Riprock to be a mountain bike inclusive of all the features needed for superior ripping, like modern geometry, Ground Control tires, hydraulic disc brakes, and internally routed cables. Finally, we threw in a wider-range drivetrain, making Riprock truly the perfect bike to inspire riders to climb higher and tackle the downhills freely.

    Kids can’t ride confidently if they’re not riding comfortably. With Riprock, fit comes first. This meant using data to reimagine everything from how they grip to how they sit to create a bike specifically and proportionally for kids. We did all this because comfort creates confidence. And more confidence always leads to more riding fearlessly.

    Technical Specifications

    Add Icon

    Frameset

    Frame

    A1 Premium Butted Alloy, unisex frame, internal cable routing, 148mm thru-axle, 30.9mm dropper post ready, replaceable derailleur hanger compatible

    Fork

    A1 Premium Butted Alloy, Alloy steerer, 15x110 mm, W/Mini Fender

    Seat Binder

    Bolt-type, 34.9mm

    Cockpit

    Saddle

    Kids Bridge Saddle, 130mm

    SeatPost

    Alloy, 0mm offset, 2-bolt clamp, 30.9mm, 300mm length

    Stem

    3D Forged Aluminim, 35mm length, 6-degree rise, 31.8mm clamp diameter

    Handlebars

    Mini Rise, Alloy Double Butted, 6-degree Backsweep, 600mm Width, 31.8mm , 19mm Bar End Diameter

    Grips

    Specialized Trail Grips, 19mm bar end diameter, lock-on

    Brakes

    Front Brake

    C-STAR Hydraulic Disc Brake, 160mm rotor, adjustable reach

    Rear Brake

    C-STAR Hydraulic Disc Brake, 160mm rotor, adjustable reach

    Drivetrain

    Shift Levers

    microSHIFT SL-M9295, 9-speed

    Rear Derailleur

    microSHIFT Advent RD-M618M, 9-speed w/o Clutch

    Chain

    KMC X9EPT, Anti-corrosion coating , Missing Link™

    Cassette

    microSHIFT Advent, 9-speed, 11-42t

    Crankset

    Forged Alloy, 115mm length, narrow Q-factor, w/ chainguard

    Chainrings

    Alloy 30T, narrow-wide design

    Bottom Bracket

    Square-tapered, 68mm

    Accessories

    Pedals

    Nylon platform w/ reflectors

    Wheels & Tires

    Rims

    Alloy, 16mm depth, 25mm internal width, 28H

    Front Hub

    Alloy, 6-Bolt, 28H, 15x110 Boost

    Rear Hub

    Alloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable

    Front Tire

    Ground Control Sport, 20x2.35"

    Rear Tire

    Ground Control Sport, 20x2.35"

    Spokes

    Stainless, 14g

    Inner Tubes

    Schrader valve

    * Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

    Geometry

    Add Icon
    20"
    Crank Length115mm
    Handlebar Width600mm
    Stem Length35mm
    Saddle Width130mm
    Seatpost Length300mm
    Stack385mm
    Reach295mm
    Head-Tube Length75mm
    Head-Tube Angle68°
    B-B Height239mm
    B-B Drop30mm
    Trail66mm
    Fork Length (full)320mm
    Fork Rake/Offset40mm
    Front-Center482mm
    Chain-Stay Length350mm
    Wheelbase830mm
    Top-Tube Length (horizontal)405mm
    Bike Stand-Over Height520mm
    Seat-Tube Length290mm
    Seat-Tube Angle73.5°
    Geometry

    Rider Reviews

    • 4.7
    • 9 Reviews

    Riprock 20 is an amazing

    Riprock 20 is an amazing bike for my 4.5 years old and he loves it. Like advertised, this is a real mountain bike. I did have to cut the seat post in order to make it go all the way down. Seat post was hitting a notch (for internal dropper post cable) inside the frame.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Luis B.

    Helpful?

    Amazing first mountain bike

    I bought this for my 5 1/2 year old son who just got off training wheels two weeks ago. We live in SW Colorado and it’s a mountain biking hot bed so naturally I wanted to get him prepared for the trails and this bike has be great so far. Took him for some loops around town and through the park for about a week. Tonight we hit our first green trail, he and the bike together was nothing short of impressive. It handled everything and he is gaining confidence by the minute, couldn’t recommend more for the parents looking to give your kid a head start on the trail.

    Would Recommend?
    Yes!

    Name:
    Richard

    Helpful?

    Impressive bike, but take careful consideration of child’s skill and height

    Out of the box this bike is outstanding! Thick, aggressive tires, sturdy frame, and quality components. Built like a “real” bike. Got for my son for 5th birthday. He is used to the 16” Riprock, very confident and pretty talented for his age. Thought this would be the perfect step-up but will have to wait for him to grow a bit for him unlock the bike’s potential. He is really trying to like it, which is cute, but I can tell it’s a little too much bike for him right now.. Had to cut the seat post down as low as it would go and it’s still high. He is currently 43” tall and can barely touch the ground when straddling the frame. The handle bars are especially wide and set low, I’ll probably cut down the bars or find some some that are not as wide and have some rise to them. Not knocking the bike—great bike for the right size kid.

    Would Recommend?
    Yes!

    Name:
    Ryan

    Helpful?

    Amazing little bike. Great quality

    Amazing little bike. Great quality and look.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Silas T.

    Helpful?

    This is a great bike!

    This is a great bike! This is my 6 year olds first mountain bike and it’s easy for her to manage. Great bike for climbs. Highly recommended.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Natalie S.

    Helpful?

    Great Bike...But

    We bought this for our 6 year-old daughter. She loved this bike at first, but she quickly ran into some issues with shifting into a lower gear. The lever is too difficult for her to press without taking her hand off of the handlebar and using her palm. This sometimes upsets her balance and causes crashes. The shifter is not sized for kids. So, this bike is effectively a single speed right now. Microshift recently released a super short shifter for kids. We may wait to see if we can get our hands on that...or maybe see if the local bike shop will work with us on trading this for something that will work for my daughter.

    Would Recommend?
    Yes!

    Name:
    Brandon

    Helpful?

    Purchased the Riprock 20 for

    Purchased the Riprock 20 for my 6 year old son. His previous bike was descent, but lacked the MTB features. He seemed hesitant while riding that bike which was a good fit for him The Riprock was a game changer. First time on it, I could see a difference in his riding. He rode more confidently with the way the bike fit him. The ease of the brakes made for easy stopping and the adjustment to his hand size was a plus. In no time, he was able to learn the trigger shifting and loved how he was able to ride grass and slopes with ease. The Riprock has a quality build and components that are well suited for a child. Worth the price.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Jeff N.

    Helpful?

    What a great bike! There

    What a great bike! There are a ton of brands that make a 20 inch kids bike but this is the most mountain bike oriented that I’ve found. Great to be able to take the Grom on real trails and know it will hold up.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Dimitri A.

    Helpful?

    The Riprock 20 is a

    The Riprock 20 is a sweet bike for kids wanting to learn how to mountain bike. This is as real of a mountain bike as there is in the 20 inch range. From the gear ratio, shifter, disc brakes to the tires and cockpit this bike is killer.

    Would Recommend?
    Yes!

    Verified Buyer

    Icon

    Name:
    Hutch B.

    Helpful?