Fit S4 Aitken
Matte Clear 21 TT
Buying Options
Part Numbers
All Colors/Sizes

Mike wanted the S4 to be as simple and classic looking as possible while using every new development in materials and workmanship available to improve on the S3.5. We've been working on new material for a Down Tube for the last six months so once that was finished and tested we were ready to go. The end result is a clean, classic frame that's strong and still less than 5 pounds.

• S4 butted and tapered top tube
• S4 stronger and more dent resistant down tube
• S4 head tube (completely new design inside and out)
• S4 bottom bracket shell
• Single bend Chain stays and curved bridges for maximum tire clearance
• Dropout with a round seat stay cut for a cleaner peg fit
• Available in Matte Black, Burgundy, Tan, Turquoise, and Matte Clear
• American Made

Accessory Mounts None
Bottom Bracket Thread Mid
Brake Type Thread On Brake Mounts
Color Matte Clear
Dropout Type 14mm
Material Supertherm Tubing
Seat Post Size 25.4mm
Size 21 TT
Type BMX
Weight 4.75 Lbs.
Wheel Size 20"
BikePedia Item ID: 146876
Mfr's Part #:

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Additional Items MPN UPC Item ID
Burgundy 20.5 TT 146379
Burgundy 20.75 TT 146526
Burgundy 21 TT 146792
Matte Clear 20.5 TT 146463
Matte Clear 20.75 TT 146687
Matte Clear 21 TT 146876
Tan 20.5 TT 146442
Tan 20.75 TT 146582
Tan 21 TT 146834
Turquoise 20.5 TT 146456
Turquoise 20.75 TT 146603
Turquoise 21 TT 146841

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