2023 Pizz U1 Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake, Single-speed capable
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

XS
S
M
L
Stack
501.1mm
524.7mm
540.7mm
555.2mm
Reach
384.7mm
396.2mm
396.5mm
396.6mm
Stack to Reach Ratio
1.3:1
1.32:1
1.36:1
1.4:1
Seat Tube Length, C-T
500mm
525mm
550mm
575mm
Top Tube Length, Effective/Horizontal Center
512mm
528mm
537mm
544mm
Top Tube Length, Actual C-C
512mm
528mm
537mm
544mm
Top Tube Slope
0deg
0deg
0deg
0deg
Head Tube Angle
73deg
74.5deg
75deg
75deg
Seat Tube Angle
76deg
76deg
75.5deg
75.5deg
Head Tube Length
90mm
110mm
125mm
140mm
Bottom Bracket Drop
50mm
50mm
50mm
50mm
Bottom Bracket Height
286mm
286mm
286mm
286mm
Chainstay Length
390mm
390mm
390mm
390mm
Chainstay Length Horizontal
386.8mm
386.8mm
386.8mm
386.8mm
Front-Center
561.5mm
566.4mm
566.4mm
570.4mm
Front-Center Horizontal
559.2mm
564.2mm
564.2mm
568.2mm
Wheelbase
946mm
951mm
951mm
955mm
Fork Offset/Rake
35mm
35mm
35mm
35mm
Fork Length (Axle-To-Crown)
374mm
374mm
374mm
374mm
Trail
66.1mm
high
56.9mm
mid/​neutral
53.8mm
mid/​neutral
53.8mm
mid/​neutral
Mechanical Trail
63.2mm
54.8mm
52mm
52mm
Wheel Flop
18.5mm
14.6mm
13.5mm
13.5mm
Tire to Pedal Spindle
55.5mm
170 mm cranks
60.4mm
170 mm cranks
60.4mm
170 mm cranks
64.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
116mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks
116mm
170 mm cranks

Base Build

XS
S
M
L
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
Tire Width Max
38mm
38mm
38mm
38mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
Bike Length with Tires
1618mm
1623mm
1623mm
1627mm

Published Sizing Recommendations

Height
155 cm
to
165 cm
165 cm
to
175 cm
175 cm
to
185 cm
185 cm
to
195 cm

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Category Trend
Track/Fixed-gear
Source:https://www.pizzstore.com/products/pizz-unbreakable-u1-frameset