Track geo
High quality steel tubing
Raw brazed fillet
Wide clearance
Custom carbon fork
5 set sizes
About

CuZn is the series production of Quokka cycles, it aims at offering a more affordable option in the line up, with zero compromise on quality.

CuZn frames are handmade in France in the Quokka workshop, using high quality steel tubing from Columbus. Fillet brazed like the bespoked frames, though not filed in order to cut on production time and cost. The raw brazing is a display of our framebuilder’s craft, as without any retouching, the fillets are impeccable.

The first CuZn model to be released is a fixed gear, with a tight geometry and generous tire clearance. Thanks to the full carbon fork we co-developped, it accepts 38mm knobby tires with space for mud.

It is the perfect do-it-all fixed frame from crits, to tracklocross, to street riding.

Specs
TubingColumbus Zona made in Italy
DropoutsCuZn horizontal 3D printed steel
Fork

Full Carbon - 35mm track rake 38+ mm Clearance Tapered 1” 1/8 - 1” 1/2 steerer

Headset44mm, designed for ZS44/EC44 headsets
Bottle cage mountsDown tube and seat tube
BrakesLong reach caliper compatible, also available with a rear brake hole and bosses
Seatpost diameter
27.2
Tire clearance
38+mm
Frameset approximative weight
2.4kg (M)
Max chainring clearance
52t
Graphics
70’s Trans-Am series inspired decals, come on a stickers sheet for custom placement
Finish

Single metallic color to choose from a range of tints created by Porsche. Check out more details below.

Builds displayed are size M, 75cm saddle height
Frameset pricing
1890 €
Pre-tax: 1575 €
Pre-order in march 2026
Delivery from june 2026
Geometry
CuZn Track XS / 50 S / 52 M / 54 L / 56 XL / 58
A / Effective Top Tube 500520540560580
B / Seat tube (c to c) 480510525540555
C / Chainstay 388388388388388
D / BB drop 4646465050
E / Head tube 110130140150170
F / Reach 369378389407421
G / Stack 508532543558579
H / Wheelbase 946949958974989
I / Axle to crown 379379379379379
R / Fork rake 3535353535
X / Seat tube angle 75,57574,574,574,5
Y / Head tube angle 71,57373,57474,5
Options
Rear bridge with brake hole
75 €
Custom single color paintjob
120 €
Frameset pricing
1890 €
Pre-tax: 1575 €
Pre-order in march 2026
Delivery from june 2026