Description
Complete 20" Supermain BMX by Harry Main's Mafia brand
Lately, Harry Main has been a prominent figure in the BMX scene, not only as a professional rider but also as a business proprietor and an industry influencer. This is his concept of what a complete 20" bike should be.
- Durable frame, fork, and cranks constructed from 4130 cro-mo
- Rather tall and sturdy handlebars, also crafted from 4130 cro-mo
- Sealed bearings at the bottom bracket, front, and rear hub, ensuring minimal maintenance
- Thick 2.4" Crawler tyres at both the front and rear
- Front rim with double walls and an extra wide single rim at the rear
- U-brake supplied
Model specifications
Model | Frame Top Tube |
20.6" | 20.6" |
21" | 21" |
Specifications
Wheel diameter:
20"
Bar height:
9.2"
Bar width:
29"
Backsweep:
Yes
Hub:
Cassette, Sealed bearings
Weight:
24lbs
Frame material:
Chromoly Steel
Seat clamp:
Integrated
Seat:
Tripod
Tyre width:
2.4"
Pegs:
Not included
Axle diameter:
10mm, 14mm
Stem type/Length:
Top load
Stem diameter:
22.2mm
Headset type:
Integrated 1 1/8"
BMX Brake Included:
U-brake (Rear)
Gyro compatible:
Yes
Gear ratio:
25/9
Crank Length/Type:
Three-piece
Pedal axle diameter:
9/16"
Sprocket mounting:
Bolt Drive
Driver side:
Right
Crank material:
Chromoly Steel
Bottom Bracket:
Mid
Crank Axle Diameter:
19mm
Pedal material:
Plastic
Number of spokes:
36
Chain type:
Single speed
Assembly:
Partly assembled