With its 19.5" top tube alloy frame, the Annex Si is a great starting point for riders who are considering hitting the local BMX track for the first time but also want a bike that can handle every day riding.

Frame: 6061 Series Alloy Frame w/ 3D Dropouts w/ Built In Chain Tensioners
Fork: Hi-Ten 1 1/8" Threadless
Colors: Black, Matte Green
Weight: 22.3 lbs
Cranks: Steel 1-pc, 165mm
Bottom Bracket: Loose Ball American BB
Sprocket: 40t Steel
Gearing: 40/16
Pedals: Nylon, 1/2"
Chain: KMC 410
Cassette: 16T Freewheel
Tires: Kenda "Kontact" 20 x 1.95" Front / 20 x 1.75" Rear
Hubs: Front: Alloy 36h, Loose Ball Rear: Alloy Flip-Flop 36h, Loose Ball
Front Hub: 36H Steel, Loose-ball
Rear Hub: 36H Steel, Loose-ball
Axle: 145mm Front, 165mm Rear
: 20" Alloy 36h, Single Wall
Brake: Promax MV-295L Alloy V-Brake
: Promax XL-378 Alloy Lever
Grips: Micro Knurl Grips
Handlebar: Hi-Ten, 7.5" Rise
Stem: Forged Alloy Top-Load, 45mm Ext.
Headset: Threadless Loose Ball, 1 1/8"
Seat: Haro Padded Adjustable
Seat Post: Steel, 25.4mm
Seat Post Clamp: Alloy, 28.6mm