2021 Bombtrack Bicycle Company Audax Base S
Build
650B/27.5 in × 47 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bombtrack Bicycle Company Audax
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 553mm |
| Reach | 373mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, C-T | 490mm |
| Top Tube Length, Effective/Horizontal Center | 519mm |
| Top Tube Slope | 9.1deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 125mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.5mm |
| Front-Center | 595mm |
| Front-Center Horizontal | 590.5mm |
| Wheelbase | 1005mm |
| Fork Offset/Rake | 53mm |
| Fork Length (Axle-To-Crown) | 385mm |
| Trail | 57.5mm mid/neutral |
| Mechanical Trail | 54.6mm |
| Wheel Flop | 17.3mm |
| Standover Height | 765mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 86mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 101mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1683mm |
| Crank Length | 170mm |
| Handlebar Width | 420mm |
| Stem Length | 80mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 160 cm to 171 cm |
Source:https://bombtrack.com/2021-audax/