Assembly Options Professionally assembled by your local dealer, or DIY the assembly - its up to you!
Financing Available Buy Now, Pay Later with Klarna. We’ve partnered with Klarna to offer flexible payment options to pay over time.
30 Day Returns Our love your ride guarantee – if you’re not 100% happy with your bike, we’re not happy either. Click here for more details
Frame Warranty Covered for at least 5 years! Check out the details to see if your bike qualifies for longer.

Start ’em young! For the littlest BMX racers out there who are ready to step up from a push bike, the Redline Proline Micro is a great choice. Designed lower to the ground, the Proline Micro has 18 inch wheels for little legs. The Proline Micro is made with a Redline proprietary alloy frame with formed and butted tubing, quality Euro bottom bracket, and higher-end 3-piece cranks. The fork is tapered to reduce weight, helping young riders maneuver the Proline Micro more easily. The saddle/seatpost combination also keeps it light and easy to use. Fits riders 4’4” and under.

  • Bike Frame Proprietary Alloy Formed and Butted Tubing
  • Bike Fork Full Chromo With Tapered Legs
  • Bike Headset Sealed Integrated 1"
  • Bike Cranks Alloy 3pc 130mm cranks
  • Bike Sprocket 38t, Alloy, 110 BCD
  • Bike Bottom Bracket Sealed Euro BB
  • Bike Cogset 14t
  • Bike Chain KMC Z6
  • Bike Front Hub Redline Aluminum 
  • Bike Rear Hub Redline Aluminum, Flip-Flop
  • Bike Spokes Stainless 14g, Black
  • Bike Rims Alloy Race, 18 x 1, 28h
  • Bike Tires Vee Speedster 18 x 1"
  • Bike Brake Levers Tektro
  • Bike Pedals Redline Jr Aluminum Platform / Chromo Spindle
  • Bike Handlebar RL Micro Aluminum, 1.5" Rise / 10° Back / 2° Up
  • Bike Grips RL Mini Hex Grips
  • Bike Stem RL Mini Aluminum HollowPoint 40mm
  • Bike Seat RL Microline Seat/Post Combo 22.2 Aluminum post
  • Bike Extras Chain Tensioners
  • Bike Brakes Tektro 926AL Linear
  • Product ID 4151
Frame Size 18"
Rider Height -
Bike Top Tube Length 16.5 "
Bike Head Angle 72.0 °
Bike Seat Angle 69.0 °
Bike Chain Stay Length 11.0 "
Bike Bb Height 9.2 "
Bike Stem Length 40.0 "
Bike Handlebar Width 22.0 "
Bike Crank Length 130.0 "
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