2026 / Gen 1 Ikuista Spektri Base L

Build

700C/29 in × 45 mm

Insights

Average stack and reach vs trend of all-road/gravel bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
579mm
Reach
381mm
Stack to Reach Ratio
1.52:1
Seat Tube Length, C-T
520mm
Top Tube Length, Actual C-C
553mm
Top Tube Slope
8.7deg
Head Tube Angle
71.5deg
Seat Tube Angle
73.5deg
Head Tube Length
145mm
Bottom Bracket Drop
78mm
Bottom Bracket Height
278mm
Chainstay Length
435mm
Chainstay Length Horizontal
428mm
Front-Center
607.1mm
Front-Center Horizontal
602.1mm
Wheelbase
1030mm
Fork Offset/Rake
50mm
Trail
66.4mm
high
Mechanical Trail
63mm
Wheel Flop
20mm
Tire to Pedal Spindle Distance
With 170 mm cranks
81.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
108mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
45mm
Tire Outer Diameter
712mm
Bike Length with Tires
1742mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
14 ft 10 in
to
PBH
82 in
to