2022 Sunpeed Astro Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Disc brake

Geometry

S
M
L
XL
Stack
538mm
549mm
559mm
569mm
Reach
357mm
360mm
365mm
372mm
Stack to Reach Ratio
1.51:1
1.53:1
1.53:1
1.53:1
Seat Tube Length, Unknown
450mm
480mm
510mm
540mm
Top Tube Length, Effective/Horizontal Unknown
511mm
518mm
525mm
535mm
Head Tube Length
120mm
130mm
140mm
150mm
Bottom Bracket Height
—
—
—
—
Chainstay Length
425mm
425mm
425mm
425mm
Wheelbase
990mm
995mm
1001mm
1008mm
Trail
—
—
—
—
—
—
—
—
Mechanical Trail
—
—
—
—
Wheel Flop
—
—
—
—

Base Build

S
M
L
XL
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
28mm
28mm
28mm
28mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
Bike Length with Tires
1668mm
1673mm
1679mm
1686mm

Published Sizing Recommendations

Height
5 ft 1 in
to
5 ft 5 in
5 ft 5 in
to
5 ft 9 in
5 ft 7 in
to
5 ft 11 in
5 ft 11 in
to
6 ft 3 in

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
Endurance Road