Description
Discover your first tricks with the 18" Primer
The Primer 18" by Sunday offers a fun and accessible freestyle BMX experience for children and younger riders who are not entirely ready for a 20" just yet. The design of every part on the Primer 18" aligns with BMX geometry, ensuring a smoother transition to a full-sized setup compared to moving from a typical child's bike.
For the 2020 model, the team at Sunday included a fully sealed cassette hub in the mix, providing excellent roll and reducing the need for frequent maintenance.
Technical specifications
- Cranks in a 3-piece design that are easy to maintain, with shortened 140mm arms for improved pedalling
- Integrated 1-1/8" headset for smooth handling and steering
- 19mm mid bottom bracket complete with sealed bearings
- Sunday Current tyres in a grippy semi-fat 2.2" design for optimal traction
- Sunday Sabertooth V2 aftermarket sprocket - the same as found on many high-end completes
- Classic 2-piece bars available in a scaled-down 7.65" height and 25.5" width
- Fully sealed cassette hub featuring 14mm axles and a 9T driver
- Specifically sized to enable kids and younger riders to easily manoeuvre and control
Specifications
Wheel diameter:
18"
Frame Top Tube:
18.5"
Bar design:
Two-piece
Bar height:
7.65"
Bar width:
25.5"
Backsweep:
12°
Upsweep:
1°
Hub:
Cassette, Sealed bearings, Unsealed bearings front
Weight:
22lbs
Frame material:
Hi-ten steel
Seat clamp:
Non-integrated
Seat:
Combo
Tyre width:
2.2"
Pegs:
Not included
Axle diameter:
10mm, 14mm
Stem type/Length:
48mm, Front load
Stem diameter:
22.2mm
Headset type:
Integrated 1 1/8"
Headtube angle:
74.5°
BMX Brake Included:
U-brake (Rear)
Gyro compatible:
Yes
Gear ratio:
25/9
Crank Length/Type:
140mm, Three-piece
Pedal axle diameter:
9/16"
Sprocket mounting:
Bolt Drive
Driver side:
Right
Crank material:
Chromoly Steel
Bottom Bracket:
Mid, Sealed
Crank Axle Diameter:
19mm
Pedal material:
Nylon
Number of spokes:
28
Chain type:
Single speed
Assembly:
Partly assembled