Sunday Primer 16" Bike 2021

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The Sunday Primer 16" Bike 2021

The new 2021 Primer 16" from Sunday Bikes is built for the smaller advanced BMX rider. Sunday set the 16" Primer up to be used on ramps, street, dirt and more. A few of the killer features of the 16" Primer include a sealed bearing headset, sealed bearing mid bottom bracket and fully sealed rear hub. The Primer is set up with a 25t / 10t gear ratio to make it a little easier for little riders to pedals and the wheels are set up with 20 spokes to help save on weight.


Frame: Sunday Primer, 16.5" top tube, integrated 1-1/8" head tube
Fork: Sunday Primer, 16" fork w/ 2-piece steerer tube and welded pre-load
Handlebar: Sunday, 2-piece
Stem: Top load, aluminum, 40mm
Headset: FSA integrated, 1-1/8"
Alloy Cap: FSA aluminum cap
Brake Lever: Aluminum, U-brake compatible
Brakes: Odyssey Springfield U-brake
Brake Cable: Odyssey Quik Slic
Grips: Velo Junior
Seat: Sunday Badge, seat and post combo
Seat post: Integrated
Seat Clamp: Sunday
Sprocket: Sunday Sabertooth v2, 25T, steel
Cranks: 127mm, 3-piece, chromoly
BB Parts: Sealed, Mid, 19mm
Pedals: Wellgo Junior platform, plastic
Rims: P-7X aluminum, 16", 20H
Front Hub: Sunday, 20H, low-flange, loose-ball, 3/8" axle
Rear Hub: Sunday, 20H, sealed, 14mm axle w/ 10T Driver
Spokes: 14g steel, black
Tires: Sunday Current, 16 x 2.1" (F & R)
Chain: KMC S1
Approx. Weight: 23.3lbs (with brakes)

Frame Geometry

Top Tube Length: 16.5"
Head Tube Angle: 74.5°
Seat Tube Angle: 71°
Chainstay Length: 10.6"-10.85”
Bottom Bracket Height: 9.25"
Standover: 6.9"

Handlebar Geometry

Rise: 6.75"
Width: 23"
Backsweep: 12°
Upsweep: 1°