2025 TSUNAMI Bicycle GC05 Base L

Build

700C/29 in × 40 mm

Insights

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

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
587mm
Reach
380mm
Stack to Reach Ratio
1.54:1
Seat Tube Length, C-T
530mm
Top Tube Length, Effective/Horizontal Center
548mm
Top Tube Slope
8.4deg
Head Tube Angle
72deg
Seat Tube Angle
74deg
Head Tube Length
160mm
Bottom Bracket Drop
68mm
Bottom Bracket Height
283mm
Chainstay Length
425mm
Chainstay Length Horizontal
419.5mm
Front-Center
599.4mm
Front-Center Horizontal
595.5mm
Wheelbase
1015mm
Fork Offset/Rake
46mm
Trail
65.7mm
high
Mechanical Trail
62.5mm
Wheel Flop
19.3mm
Standover Height
807mm
Tire to Pedal Spindle Distance
With 170 mm cranks
78.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
113mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
40mm
Tire Outer Diameter
702mm
Bike Length with Tires
1717mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
176 cm
to
186 cm
Source:https://tsunamibicycle.com/product-category/products/weapon-tsunami-fixie-frameset-road-bike-frameset-gravel-frameset/multiple-speed-frameset/gravel-frameset-best-steel-gravel-bike-alloy-frame-set/