
Masi Bikes
Coltello Geometry
Coltello Geometry
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Pure Speed, Stripped to the Essentials
The Coltello is Masi’s tribute to the purity of cycling — a single-speed fixie designed for those who crave the raw connection between rider and machine. Sleek, minimalist, and built for urban streets, the Coltello embodies the spirit of freedom and simplicity.
With its lightweight steel frame and clean lines, the Coltello is a modern nod to Masi’s racing heritage. Every pedal stroke translates into direct power, offering an unfiltered riding experience that demands skill, strength, and focus. Whether navigating city avenues, sprinting through urban grids, or competing in fixed-gear criteriums, the Coltello thrives on speed and precision.
The name Coltello, meaning "knife" in Italian, perfectly captures its sharp, agile riding experience. Like a blade slicing through the air, the Coltello delivers instant acceleration and nimble handling. Its minimalist design speaks to the fixie culture — a celebration of simplicity, where every component serves a purpose. No gears. No frills. Just pure, unadulterated speed.
Built for urban athletes and cycling purists, the Coltello is more than a bike — it’s a way of life. Whether you're navigating your city’s streets or pushing your limits on the track, the Coltello connects you to the true essence of riding. Embrace the simplicity. Feel the road. Ride with purpose. This is Coltello.
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SPECIFICATIONS
FRAMESET | |
---|---|
Frame | Masi Alloy, Threaded BSA bottom bracket, Rim brake |
Fork | Masi Carbon, 1 1/8" - 1.5" tapered, QR type dropout, Track fork |
Colors | Black, White |
DRIVETRAIN | |
Cranks | Prowheel SOLID-246A-F, 46T |
Pedals | |
Chain | Single Speed |
Bottom Bracket | NECO BSA 68mm |
Gear | 16T |
Brake lever | Promax 249A |
Brake caliper | Promax RC476, dual pivot |
Freewheel/Cassette | |
WHEELS | |
Tires | KENDA Kriterium K1018, 700x25c |
Wheels/Rims | Masi Rim brake, Alloy rim, 35mm height |
Hubs | Alloy Flip-Flop hub w/Track Nuts, 32H |
BRAKING SYSTEM | |
Derailleur Shifter | |
OTHER COMPONENTS | |
Grips/Tape | |
Handlebar | Masi Brev M., Ø31.8mm / Black |
Stem | Masi 31.8mm / -7° / Black |
Headset | |
Saddle | Masi 280 x 139mm, Ti-Alloy Rail |
Seat Post | Masi Aero type / Black |
GEOMETRY
SIZE | XS | S | M | L | XL |
---|---|---|---|---|---|
A. Top Tube (Effective) | 521mm | 525mm | 534mm | 560mm | 570mm |
B. Seat Tube (C-T) | 490mm | 510mm | 530mm | 560mm | 580mm |
C. Stack Height | 496mm | 505mm | 515mm | 531mm | 560mm |
D. Reach | 398mm | 393mm | 396mm | 408mm | 410mm |
E. Standover | |||||
F. Head Tube Length | 100mm | 110mm | 120mm | 135mm | 165mm |
G. Head Angle | 74° | 74° | 74° | 74° | 74° |
H. Seat Angle | 76° | 75.3° | 75° | 74° | 74° |
I. Wheel Base | 958mm | 956mm | 962mm | 973mm | 983mm |
J. Chainstay | 395mm | 395mm | 395mm | 395mm | 395mm |
K. BB Drop | 45mm | 45mm | 45mm | 45mm | 45mm |
L. Fork Offset | 45mm | 45mm | 45mm | 45mm | 45mm |
M. Stem Length | |||||
N. Bar Width | |||||
O. Crank Length | |||||
P. Wheel Size | 700 | 700 | 700 | 700 | 700 |
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