100% of 100
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.

Once your kids have some laps under their belts and they’re ready to get more serious about racing, the Redline Proline Expert is ready to take them to the next level. Offering great performance and high quality at a mid-level price, the Proline Expert is made with a Redline proprietary aluminum alloy frame with a sealed Euro bottom bracket, higher-end 3-piece cranks, and sealed hubs. The 100 percent chromoly steel race fork with tapered legs helps young riders maneuver the Proline Expert more easily. The pivotal race saddle with no padding looks and acts the part at the start line. Fits riders 60 to 64 inches tall.

  • Bike Frame Proprietary Alloy Formed and Butted Tubing
  • Bike Fork Full Chromo With Tapered Legs
  • Bike Headset Sealed Integrated Headset 1 1/8, Aluminum top cap
  • Bike Cranks Redline Microline 3pc 165mm cranks
  • Bike Sprocket 39t, Alloy, 110 BCD
  • Bike Bottom Bracket Sealed Euro BB
  • Bike Cogset 15t
  • Bike Chain KMC Z6
  • Bike Front Hub Redline Aluminum Fully Sealed
  • Bike Rear Hub Redline Aluminum, Cassette, Fully Sealed
  • Bike Spokes Stainless 14g, Black
  • Bike Rims Alloy Race, 20 x 1 1/8, 36h
  • Bike Tires Vee Speed Booster, 20 x 1-3/8"
  • Bike Brake Levers Tektro
  • Bike Pedals Aluminum 9/16" Platform
  • Bike Handlebar RL Expert Aluminum, 5.5" Rise / 10° Back / 2° Up
  • Bike Grips RL Pro Hex Grips
  • Bike Stem RL Aluminum HollowPoint
  • Bike Seat Pivotal No padding
  • Bike Seatpost Aluminum Pivotal 26.8mm
  • Bike Extras Chain Tensioners
  • Bike Brakes Tektro BV-1V Linear
  • Product ID 4147
Frame Size 20"
Rider Height -
Bike Top Tube Length 19.5 "
Bike Head Angle 73.0 °
Bike Seat Angle 69.0 °
Bike Chain Stay Length 13.25 "
Bike Bb Height 11.0 "
Bike Stem Length 50.0 "
Bike Handlebar Width 26.0 "
Bike Crank Length 165.0 "
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