DK Step Up 18" BMX Bike Description:
The DK Step Up 18" BMX bike is perfect for young riders ready for bigger challenges. Featuring a lightweight 6061 aluminum frame with an 18” top tube and a 12.4” chain stay, it offers easy handling and control. Key specs include 18x2.4" Innova street tires, a Wise alloy U-brake for reliable stopping, and durable 140mm tubular chromoly cranks. The bike also has a DK Jump top load stem with a 53mm reach and 7.5” rise hi-ten steel handlebars for a comfortable grip and control. Weighing 21 lbs 14 oz, it’s built for fun and ready to grow with your little BMX enthusiast!
Specifications:
- Frame: 6061 Aluminum
- Fork: 4130 Chromoly Steerer w/ Tapered Legs and Integrated Crown Race
- Headset: Integrated (1-1/8")
- Stem: DK Jump Top Load (53mm Reach)
- Bars: Hi-Ten Steel (7.5" Rise)
- Grips: DUO Mini Grips
- Cranks: Wise Tubular Chromoly 3-piece (140mm Length)
- Bottom Bracket: MID Sealed (19mm)
- Pedals: DK Blender PC Platform
- Sprocket: DK Replica (25 Tooth)
- Chain: KMC Z-510
- Front Hub: Alloy Sealed (3/8" Axle)
- Rear Hub: Alloy Semi-Sealed (14mm Axle)
- Driver: 9 Tooth
- Front Rim: Alloy (Single Wall) (36 Hole)
- Rear Rim: Alloy (Single Wall) (36 Hole)
- Front Tire: Innova (18" x 2.4")
- Rear Tire: Innova (18" x 2.4")
- Seat: DK Padded (Combo)
- Seat Post: Combo (27.2mm)
- Seat Clamp: Alloy
- Brake Lever: Wise Alloy
- Brakes: Wise Alloy U-brake
- Gyro: -
- Gyro Tabs: None
- Brake Mounts: Welded
- Extras: -
- Color: Dusk/Red
- Weight: 21.8 lbs
Geometry:
- Toptube Length: 18”
- Chainstay Length: 12.4”
- Headtube Angle: 74°
- Seattube Angle: 70°
- Bottom Bracket Height: -
- Standover: -
- Recommended Sizing Guide: 3'10" to 4'8"
For assistance building your new bike, please check out our tech help section here for instructions and tips on how to build your bike to ensure it is safe.
Dan's Comp recommends riding with a helmet to protect that brain. Shop our selection of
freestyle helmets here.
Need help finding the right bike for you? Not sure what size would suit you best? Check out our BMX buyers guide video below!
Note: To ensure that every component on your bicycle is working properly, Dan's Comp recommends that all bikes be assembled by a qualified mechanic. Improper assembly of your bicycle may lead to premature wear or failure of individual components such as headsets, crank assembly and wheels. Failure to do so may void the manufacturer warranty.
This product was added to our catalog on September 25, 2025
