2025 Ridley Bikes Ignite GTX Alpine gravel Base, 29x2.3, 100mm fork adjusted M

Build

700C/29 in × 55 mm

Insights

Somewhat upright stack and reach vs trend of progressive gravel bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
614mm
Reach
418mm
Stack to Reach Ratio
1.47:1
Seat Tube Length, C-T
435mm
Top Tube Length, Effective/Horizontal HT Top
600mm
Top Tube Slope
20deg
Head Tube Angle
70deg
Seat Tube Angle
73.5deg
Head Tube Length
100mm
Bottom Bracket Drop
58mm
Bottom Bracket Height
308mm
Chainstay Length
430mm
Chainstay Length Horizontal
426.1mm
Front-Center
676.4mm
Front-Center Horizontal
673.9mm
Wheelbase
1100mm
Fork Offset/Rake
50.3mm
Trail
79.7mm
high
Mechanical Trail
74.9mm
Wheel Flop
25.6mm
Tire to Pedal Spindle Distance
With 170 mm cranks
140.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
138mm

Base, 29x2.3, 100mm fork adjusted Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
55mm
Tire Outer Diameter
732mm
Bike Length with Tires
1832mm
Suspension Type
Rigid, suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Disc
Source:https://www.ridley-bikes.com/en_US/bikes/SBIISXRID310