
Radio Comrad 20" BMX Bike | Matt Black
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Description
Radio Bikes COMRAD BMX Bike – Full CrMo Street BMX with Freecoaster & Technical Street Geometry
BMX Bike – Key Features:
- Rider Height: approximately 175 cm and taller
- Frame Size (TT): 21"
- Wheels: 20" x 2.35"
- Cranks: 3-piece Tubular CrMo, 165 mm
- Weight: 12.65 kg
- Level: Advanced
Street BMX built for technical riding and full control
The Radio Bikes COMRAD is a street-focused BMX designed for riders who prefer stability, control and a more predictable feel during technical tricks. With a longer 21" TT frame and 13.2" chainstay, this bike feels calm and planted during fakies, grind combos and nose manuals.
The geometry gives the bike a smoother and more controlled response compared to shorter, more aggressive park setups. Manuals feel more balanced, and the longer backend helps keep the bike stable during faster street riding and hard landings.
This is the kind of setup that works especially well for riders spending most of their time on ledges, rails and technical street spots where bike control matters more than ultra-quick twitchy handling.
Freecoaster setup for smoother fakies
The SaltPlus VERTEX Freecoaster hub allows you to roll backwards without pedal movement, making fakies feel smoother and easier to control. It also gives you more time to prepare for the next rotation or line during technical street combos.
The overall feel is very street-oriented — stable, controlled and built for slower technical riding rather than high-speed park transitions.
Responsive front end with a short 26 mm offset
The 26 mm fork offset gives the front end a quicker and more responsive feel during nose manuals and technical front-wheel tricks. Steering reacts faster during balance corrections while the longer backend keeps the rear stable.
This combination creates a very specific street geometry feel: responsive in the front, controlled in the rear.
Full CrMo construction ready for heavy street riding
The full CrMo frame, full CrMo fork and 4-piece SaltPlus HQ bars are built to handle heavy daily street riding, harder impacts and regular grind abuse.
The Radio PRO 3-piece crankset improves stiffness and power transfer during bunny hops and quick pull-ups, while the SaltPlus BRACE double wall rims offer additional strength for harsher landings.
Street-ready grind setup
The Radio 47 Guard Sprocket helps protect the drivetrain during grinds and impacts, while the included SaltPlus PRO nylon hub guards let you hit rails and ledges straight out of the box.
This is not a beginner BMX. The COMRAD is aimed at riders who want a stronger, more technical street setup with a stable geometry and freecoaster feel.
How to choose the right BMX size?
The 21" TT frame is best suited for riders around 175 cm and taller. A longer frame provides more stability during faster riding and gives you extra room for technical tricks and balance control.
Choosing the right BMX size makes manuals, fakies and grind combinations feel more natural. Smaller frames tend to feel more nervous at higher speed, while a longer frame gives a calmer and more predictable ride.
Safety matters
When learning tricks, it is always worth riding with a helmet and proper protective gear. Even experienced riders use protection regularly while riding street and skateparks.
BMX Bike – Detailed Technical Specification:
Frame (geometry diagram below):
- Radio “COMRAD” Frame
- Full CrMo
- TT: 21"
- CS: 13.2"
- HA: 75.5°
- SA: 71°
- BB: 11.7"
- SO: 9"
- Removable brake mounts and cable guides
Fork:
- Radio “PRO” Fork
- Full CrMo
- 26 mm Offset
Handlebar:
- SaltPlus “HQ”
- 4-piece
- Full CrMo
- Height: 9"
- Width: 29.1"
Stem:
- Radio “AXIS”
- Top Load
- 50 mm Reach
- CNC Machined
Headset:
- Salt “PRO”
- Integrated
- Sealed Bearings
Gyro:
- Removable gyro tab holes
Cranks:
- Radio “PRO”
- 3-piece
- Tubular CrMo
- 165 mm
- 8 spline
Bottom Bracket:
- MID BB
- Press Fit
- Sealed Bearings
Sprocket:
- Radio “47” Guard Sprocket
- Leon Hoppe Signature
- 25T
- 6061-T6 Alloy
Chain:
- Salt “AM”
- W1 Type
Rims:
- SaltPlus “BRACE”
- Double Wall
- 36H
Front Hub:
- Salt “EX” Hub
- Sealed
- 3/8” Male Axle
- 2x SaltPlus “PRO” Nylon Hub Guards
Rear Hub:
- SaltPlus “VERTEX” Freecoaster
- Sealed
- 9T
- 14 mm Hollow Axle
- 2x SaltPlus “PRO” Nylon Hub Guards
Driver:
- Freecoaster
- 9T
- RSD
- Sealed Bearing
Tyres:
- SaltPlus “BURN”
- 20" x 2.35"
Brakes:
- SaltPlus “GEO XL” U-Brake
- Rear
Brake Lever:
- Radio “AM”
- Aluminium
- Rear
Hub Guards / Grind Setup:
- 2x SaltPlus “PRO” Nylon Hub Guards – Front
- 2x SaltPlus “PRO” Nylon Hub Guards – Rear
- Street grind-ready setup
Seatpost:
- Combo Seat/Post
- Integrated Construction
Seat Clamp:
- Integrated Slim Seat Clamp
Seat:
- Radio “CENTURY” Fat Padded Combo Seat
Pedals:
- Radio “PRO”
- Nylon / Fiberglass
Grips:
- Radio “FREQUENCY XL”
- Flangeless
- 160 mm
Weight:
- 12.65 kg
Remember that BMX bikes are ridden in demanding conditions and under heavy stress. They are not indestructible. Every part can wear out or become damaged during riding. Regular inspections and proper maintenance will help extend the lifespan of your bike.
Important information about your new bike:
- Before riding, carefully read the warranty included with the bike.
- The bike is delivered approximately 90% assembled.
- Before the first ride, install the pedals, seat, handlebars and sometimes the front wheel.
- A professional initial service inspection is recommended. This is a paid service but required to maintain the warranty. Keep your receipt.

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