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> Bicycling Catalog > Bikes > Children's > 20-Inch (5-8 yr. old) > Specialized > Boy's Hotrock 20 Coaster
Specialized Boy's Hotrock 20 Coaster
  • Color: Gloss Black/White/Blue
  • Color: Gloss White/Red/Black
  • Color: Gloss Red/White/Black

Specialized Boy's Hotrock 20 Coaster


Product Rating
5.0 stars
 (1 Review)

Product Details

2015 Specialized Boy's Hotrock 20 Coaster

Specialized's Boy's Hotrock 20 Coaster is an easy way for little kids to step up to big-time fun. It features an aluminum frame built to withstand the rigors of childhood bike riding and a rear hand brake to get him ready for bigger bikes down the road, while the coaster brake provides a familiar backup to facilitate the learning process. Plus, the Hotrock comes with fat, knobby tires for serious traction on all types of terrain, too.

  • Part Numbers close open

    Option Barcode Manufacturer's Part Number
    Gloss Black/White/Blue 00719676139944 B4E0-3609
    Gloss White/Red/Black 00719676139784 B4E0-3709
    Gloss Red/White/Black 00719676227887 B4E0-3909
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  • Consumer Reviews close open


    by PowerReviews
    --- [ Replace PRoduct Name ] ---
    5.0 stars

    (based on 1 review)


    of respondents would recommend this to a friend.


    • Durable 
    • Great brakes 
    • Lightweight 
    • Low seat height 
    • Versatile 


    • Chain guard 

    Best Uses

    • Commuting/city 
    • Extreme sports 
    • Road biking 
    • Street tricks 

    Reviewed by 1 customers

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    Displaying reviews 1


    Low Seat Light frame Small Kid friendly

    By Nate

    from Phoenix, AZ

    About Me Avid Cyclist

    Verified Reviewer


    • Versatile
    • Great Brakes
    • Lightweight
    • Durable
    • Low Seat Height


    • Chain Guard

    Best Uses

    • Extreme Sports
    • Road Biking
    • Street Tricks
    • Commuting/City


    My 5 year old was riding a 12" Specialized Hotrock, and needed to upgrade. The 16" Hotrock was the right size, but easily outgrown. We compared dozens of bikes, the 18"ers we found were heavy and cheap. Went to the local shop and they removed the rear reflector from the 20" Hotrock and dropped the seat down all the way. It was the lowest of any 20" and almost where the 18"ers sat. The bigger wheels roll over bumps, the breaks are amazing he stops without skidding and can touch his toes on either side. This bike can scale up for years. The chain guard can get pushed against the pedal, but just reset with your hand- its thin metal. Tires are upgrades and seat is top notch. I'm 5'10" 180lbs and I rode around on this thing with no worries.

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