Bikes Blog
FiftyOne Sika is a 690g pro-level street bike for actual riders
Apr
FiftyOne Bikes founder Aiden Duff says they’ve constructed sufficient customized street bikes for various riders that they common 10 distinctive bike designs each month, greater than many manufacturers do in a couple of years.
Now, he’s distilled all of that information into the brand new FiftyOne Sika, a top-level street bike designed for actual riders, not skilled racers. It’s nonetheless excessive efficiency, however with clearance for 40mm tires, assured dealing with, and a much less excessive driving place.
However, Duff says that doesn’t make it an “endurance” bike, that it’s very a lot a efficiency street bike. It will get aero touches, excessive backside bracket stiffness, and may be very gentle. Claimed weight is simply 690g!
That makes sub-7kg full bike builds, with pedals, fully doable. Duff mentioned being extremely light-weight wasn’t the aim, however a cautious choice of high-level Toray fibers allow them to hit their stiffness objectives, use aero-optimized tube shapes, and nonetheless make it actually gentle.
Experience high quality is enhanced by the bigger tires (if you need them, it really works nice with 28-32mm tires, too), plus a typical spherical 27.2 seatpost and added fork compliance. Their “actual rider” geometry provides it a bit shorter attain and chainstays which can be a couple of millimeters longer than what you’d discover on a race bike.
The one-piece bar/stem is their first in-house cockpit design. It has NACA airfoil shaping with a barely 3º backsweep to make it and also you just a little extra aerodynamic. All cables and hoses run internally for a full stealth look.
Lastly, it makes use of a T47 threaded BB and a UDH hanger for stable future element compatibility and simple service.
Framesets retail for priced €4,500 / $4,500 / £3,950. They arrive with a lifetime guarantee and are UCI-approved.