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DK Helio 21"TT Bike-Black

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About This Product: DK Helio 21"TT Bike-Black

An all chromoly frame, fork, bars, and 3-piece cranks on a bike in this price range is almost unheard of, but we speak the truth. The DK Helio is a value packed BMX bike, ready to rip without wrecking your wallet. The features don’t stop at the sturdy frameset: DK and Wise parts throughout, along with sealed bearing hubs and bottom bracket, doublewall alloy rims, and a Wise pivotal seat all add up to a dialed list of components. 26/9 gearing gives you a little more speed on the top end, and is an upgrade rarely seen on any complete bike. The 21” top tube of the frame and tall 8.8” rise bars are for full sized riders, making the Helio the perfect choice for a full scale assault on BMX.


  • TOP TUBE: 21"
  • REAR CHAIN STAY: 13.5"
  • FRAME: 100% chromoly with integrated headset, Mid BB, removable brake mounts
  • FORK: 100% chromoly with built-in bearing race, tapered legs, internally threaded alloy compression bolt
  • BARS: 100% chromoly 8.8 x 29”, 11° back, 4° up
  • STEM: DK Jump top load, 50mm reach, 30mm rise
  • HEADSET: 45/45 integrated sealed cartridge bearings
  • BRAKE: Wise alloy U-brake
  • LEVER: Wise alloy, hinged
  • REAR HUB: Wise alloy sealed bearing 9-tooth cassette with 14mm axle
  • FRONT HUB: Wise alloy sealed bearing with 3/8” axle
  • SPROCKET: Wise 26-tooth alloy
  • CRANKS: Wise 3-piece tubular chromoly, 170mm, 8-spline spindle
  • BOTTOM BRACKET: 19mm sealed Mid
  • CHAIN: KMC Z-510
  • PEDALS: DK Blender PC platform
  • RIMS: Wise Rectrix2 36mm doublewall 36-hole alloy
  • TIRES: Wise Alula 65psi 20 x 2.25”
  • SEAT: Wise padded Pivotal
  • SEAT POST: Wise alloy Pivotal, 25.4mm
  • SEAT CLAMP: Integrated
  • GRIPS: DK Tsuka with press-in bar plug
  • BIKE WEIGHT: 25 lbs 11 oz

Complete Bike specifications and components may differ from photos and description. Manufacturers reserve the right to make changes and/or substitutions due to parts availability, production requirements and ongoing development decisions.

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.