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Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple - 1
Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple - 2
Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple - 3

Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple

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About This Product: Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple

Available for shipping June 27, 2026.

The Meybo Superclass Junior (18.7"TT) BMX Race Bike-Black/Grey/Purple is built for riders who want quick acceleration, sharp handling, and race-ready performance straight from the gate. Its lightweight alloy frame and responsive carbon fork create a fast, controlled ride that feels solid through every sprint and turn. Packed with proven SD components and available across a full range of sizes, the Superclass lineup delivers serious BMX race performance without overcomplicating the design.

Image for reference only. Your order will be fulfilled with the selected bike size.

NOTE: As with any complete bike, J&R Bicycles recommends that you have a professional bicycle store build your bike. Bikes ordered through mail-order come partially assembled and need to be inspected and assembled by a bicycle mechanic. Failure to do so may void the manufacturer's warranty. Manufacturers’ warranties differ for every brand. You can check the brand's website for warranty 

FEATURES

  • Lightweight alloy race frame
  • Responsive carbon fork design
  • Race-proven SD component package

SPECIFICATIONS

  • FRAME: Meybo Superclass Junior Alloy 6061
  • HEADSET: FSA Orbit Sealed Full Integrated 1"
  • BB: SD Hollow 24mm, Outboard Bearings
  • BARS: SD Alloy Junior 4.5"
  • FORK: SD Expert 1" Carbon Fork V2 CNC Steerer 20" with 10mm Dropout
  • STEM: 1” 40mm
  • GRIPS: 115mm BMX Lock-On Grips
  • SEAT: PC Combo Mini Seat 22.2 Black
  • SEAT POST: Integrated Combo (22.2)
  • CRANKS: SD B-85 Crankset 145mm, Black, BCD 104, 24mm Spindle
  • CHAINRING: 41T 4-Bolt Black
  • PEDALS: Wellgo LU-204 Platform
  • FRONT HUB: SD Base Expert Hub 28H 8mm Bolts
  • REAR HUB: SD Base Cassette Disc Hub 28H, 5 Pawls, 180 Clicks, 8mm Bolts
  • RIMS: Black 20x1 1/8 Double Wall with Eyelets
  • TIRES: Tioga PowerBlock 20x1 1/8 60TPI
  • BRAKES: Shimano MT501 Hydraulic
  • WEIGHT: N/A
  • CHAIN: KMC Chain X9 3/32 Black
  • REAR COG: 17T Silver
  • SPOKES: Black
  • NIPPLES: Brass Black
  • SEAT CLAMP: SD QR Clamp 25.4 Black
  • CHAIN TENSIONERS: Meybo Integrated

Meybo Bike Sizing Chart

Subrosa Bike Sizing Chart

Race Bike and Race Frame Fitment Guide

Race Bike and Race Frame Fitment Guide
FRAME/BIKE SIZE HEIGHT TYPICAL AGE
FRAME/BIKE SIZE: MICRO HEIGHT: 3' - 3'7" TYPICAL AGE: 3 - 5
FRAME/BIKE SIZE: MINI HEIGHT: 3'4" - 4' TYPICAL AGE: 5 - 6
FRAME/BIKE SIZE: JUNIOR HEIGHT: 3'10" - 4'5" TYPICAL AGE: 7 - 8
FRAME/BIKE SIZE: EXPERT HEIGHT: 4'2" - 4'9" TYPICAL AGE: 9 - 10
FRAME/BIKE SIZE: EXPERT XL HEIGHT: 4'6" - 5'2" TYPICAL AGE: 11 - 12
FRAME/BIKE SIZE: PRO HEIGHT: 4'9" - 5'7" TYPICAL AGE: 13 - 14
FRAME/BIKE SIZE: PRO XL HEIGHT: 5'6" - 6'1" TYPICAL AGE: 15 - 18
FRAME/BIKE SIZE: PRO XXL HEIGHT: 5'9" - 6'5" TYPICAL AGE:  
FRAME/BIKE SIZE: PRO XXXL HEIGHT: 6'3" - 6'9" TYPICAL AGE:  

Need Some help Choosing a BMX Bike?

Selecting the right size BMX bike is vital for a smooth and delightful ride. At J&R Bicycles, we understand the BMX world inside out because we're passionate riders ourselves. Just reach out to us, and we'll be more than happy to assist you on your journey to finding the perfect BMX bike.

Curious to learn more? We've compiled a comprehensive BMX buyer's guide to demystify the process. Read on, and together, we'll uncover the BMX bike that perfectly matches your riding style and preferences.

Read The Guide