DK Helio 21 Inch TT BMX Bike Black Crackle (2021)
Up to 12 months interest free
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Free Bike Build
We'll build your bike for free when you click and collect at any 99 Bikes store.
First Free Tune-up
Every bike comes with a complimentary free tune-up and safety check.
Please note that, in order to reduce production and delivery times, bike specifications are subject to change by the manufacturer without notice. Please be aware that these changes might not be reflected on product pages and images.
The DK Helio gives you everything you need to flip it and rip it in the park, the street or on the dirt. Bringing back what makes the Helio a great freestyle bike, it's back in 2021 with full chromoly fork, frame, bars and 3 piece cranks. A 21" top tube is suitable for a range of riders, with plenty of room for you to do your work. It even has an aftermarket DK Stealth seat/post, DUO Pedals and DUO 2.35" Stun1 Tyres for a ferocious ride. On a bike of this quality you get fully sealed bearings throughout and 26/9 gearing. DK designed the Helio to be a versatile BMX which is comfortable on every surface and ready to shred at a moments notice.
Features
- 100% chromoly frame with removable brake mounts
- 100% chromoly fork w/ built-in bearing race, internally threaded pre-load bolt, tapered legs
- 8.8” rise - 100% chromoly handlebar
- Sealed hubs
- DUO Brand 2.35” Stun 1 Tyres, 65psi.
SKU | DKXB21CB2410A |
---|---|
Season | 2021 |
Size | 20inch |
Click & Collect | Yes |
Frame | 100% chromoly w/ removable brake mounts |
Frame Material | Chromoly |
Fork | 100% chromoly w/ built-in bearing race, internally threaded pre-load bolt, tapered legs |
Fork Material | Chromoly |
Front Gears | Single |
Rear Gears | Single Speed |
Crankset | Wise tubular chromoly 3-piece, 170mm |
Pedals | DUO Brand Resilite platform |
Chain | KMC Z-510, silver |
Brake Type | Rim Brake |
Brakes | WISE alloy U-brake |
Brake Levers | Wise alloy, hinged |
Cassette | DK 26T, alloy |
Wheel Size | 20" |
Tyres | 2.35†DUO Brand Stun1, 65psi |
Rims | Wise Rectrix2, double wall, 36mm wide, 36-hole |
Hubs | Wise alloy, fully sealed, 14mm axle, 9T driver |
Spokes | 14G, black |
Bottom Bracket | 19mm sealed Mid |
Handlebar | 8.8†rise, 100% chromoly |
Grips | DK Tsuka w/ press-in bar plugs |
Saddle | DK Stealth Pivotal |
Seatpost | 25.4mm Stealth Pivotal, alloy |
20" Freestyle BMX Sizing Chart
Top Tube
Top Tube
Top Tube
Top Tube

Legend
ST Seat Tube
TT Top Tube
CS Chain Stay Length
HTA Head Tube Angle
STA Seat Tube Angle
BD Bottom Bracket Drop
HT Head Tube
FL Fork Length
R Reach
S Stack
WB Wheel Base
Size |
20inch | Wheel Size | 20" | Frame Size | 20 | TT Top Tube (mm) | 21.0 | HTA Head Tube Angle (°) | - | HT Head Tube (mm) | - | S Stack (mm) | - |