S3.5 Aitken
Backend length
Head-tube angle
Seat-tube angle
BB height
BB style
Axle size
Brake mounts
Gyro tabs
Weight
13.65"
75°
71°
11.8"
Mid
14mm
Removable 990 mounts
optional (custom order)
4.2 lbs
The third incarnation of Mike Aitken’s personal frame, the 100% Made in USA Series 3.5 is lighter, sleeker, and more functional than any Fit frame before it.
• Removable brake mounts
• Heat treated, butted, air-hardening Supertherm tubeset
• New headtube with engraved S3.5 logo (from the hood of Mikey’s car!)
• Clearance for massive rear tires
• Micro heat-treated dropouts
• Tapered/swaged seat stays
• Laser cut, vented seat and chainstay bridges
• Integrated seat clamp
• New engraved Fitbikeco gusset
• Made with pride in the USA