2025 Blackwater BRACKEN Base Medium (54cm)
Build
700C/29 in × 42 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Blackwater BRACKEN
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 575mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Slope | 9.1deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 129.8mm |
| Bottom Bracket Drop | 77mm |
| Bottom Bracket Height | 276mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 407.8mm |
| Front-Center | 619mm |
| Front-Center Horizontal | 614.2mm |
| Wheelbase | 1022mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 395mm |
| Trail | 74mm high |
| Mechanical Trail | 69.9mm |
| Wheel Flop | 22.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 96mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 106mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1728mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.blackwaterbicycles.com/bikes/p/bracken