Position One Junior BMX Bike Description:
The Position One Junior BMX Race Bike delivers a smooth and confidence-building ride for young riders entering the competitive world of BMX racing, offering real race-grade performance in an accessible entry-level package. Built with a lightweight 6061-T6 alloy frame featuring a 19" top tube and winning geometry derived from Chase BMX, it pairs with a full chromoly fork, integrated reducer sealed bearings, double-wall 24H rims, and fast-rolling Arisun XLR8 1-1/8" tires. A 40T chainring, 155mm alloy cranks, and mini seat/post combo keep things light and responsive, all while maintaining durability for repeated laps and growing skills. Sized perfectly for riders 4'–4'5" and available in three striking color options—blue, red, and sand—the Position One Junior is a race-ready starter bike built to spark confidence, speed, and future podium potential.
Specifications:
- Frame: 6061 T6 Alloy, Integrated Head Tube, Water Decals (Junior 19" Top Tube)
- Fork: Full chromoly (1-1/8" steer tube)
- Headset: Integrated Sealed Bearing
- Stem: Top Load, 6061 T6 Alloy (40mm reach)
- Bars: 4.25" Rise, 22.75" Wide, 8° Back Sweep & 2° Up Sweep
- Grips: 130mm Soft Single Ply Without Flange
- Cranks: 3 Piece Crank 155mm Alloy Arm, Cr-mo Chain Ring Bolts / Nuts
- Bottom Bracket: 113mm Sealed Bearing Square BB
- Pedals: Platform PP 9/16"
- Chainring: 5 Bolt 110mm 1/2"x3/32" 3mm Steel Ring (40T)
- Chain: KMC Z33 1/2"x3/32"
- Front Hub: Double Contact, saled bearing (24H) (3/8" axle/nuts)
- Rear Hub: Double Contact, saled bearing (24H) (3/8" axle/nuts)
- Freewheel: 16T
- Front Rim: Double wall, presta valve (28H) (20 x 1-1/8")
- Rear Rim: Double wall, presta valve (28H) (20 x 1-1/8")
- Front Tire: Arisun XLR8 (20 x 1-1/8")
- Rear Tire: Arisun XLR8 (20 x 1-1/8")
- Seat: Mini Combo
- Seat Post: Mini Combo 25.4mm
- Seat Clamp: Alloy 1 Bolt
- Brake Lever: Alloy Junior/Expert
- Brakes: Alloy v-brake (95mm)
- Extras: -
- Color: Sand
- Weight: 16 lbs 15 oz
Geometry:
- Toptube Length: 19"
- Chainstay Length: 13"
- Headtube Angle: 73°
- Seattube Angle: 72°
- Bottom Bracket Height: 10.6"
- Standover: 8.75"
- Recommended Sizing Guide: 4' 0" - 4' 5"
Before You Hit The Track:
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.
A new race bike calls for a matching helmet to complete the look. Browse our selection of
full face race 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 December 1, 2025
