2026 Bombtrack Bicycle Company Hook EXT Flat Bar M
Build
650B/27.5 in × 2 in
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bombtrack Bicycle Company Hook EXT
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 589mm |
| Reach | 387mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, C-T | 530mm |
| Top Tube Length, Effective/Horizontal HT Top | 556mm |
| Top Tube Slope | 8.5deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 272.8mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 419.2mm |
| Front-Center | 610mm |
| Front-Center Horizontal | 605.8mm |
| Wheelbase | 1025mm |
| Fork Offset/Rake | 48mm |
| Fork Length (Axle-To-Crown) | 395mm |
| Trail | 60.9mm mid/neutral |
| Mechanical Trail | 57.9mm |
| Wheel Flop | 17.9mm |
| Standover Height | 803mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 97.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 102.8mm |
Flat Bar Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2in |
| Tire Outer Diameter | 685.6mm |
| Bike Length with Tires | 1710.6mm |
| Crank Length | 170mm |
| Stem Length | 90mm |
| Stem Angle | -7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 170 cm to 181 cm |
Source:https://www.bombtrack.com/my25/complete-bikes/hook-ext-sx-eagle