2025 Bassi x Keystone Belmont Base 57.5cm
Build
650B/27.5 in × 48 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Bassi x Keystone Belmont
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 600mm |
| Reach | 386mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 575mm |
| Top Tube Length, Effective/Horizontal Center | 564mm |
| Top Tube Slope | 5.1deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 160.5mm |
| Bottom Bracket Drop | 67mm |
| Bottom Bracket Height | 273mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 434.9mm |
| Front-Center | 625.9mm |
| Front-Center Horizontal | 622.3mm |
| Wheelbase | 1057.2mm |
| Fork Offset/Rake | 55mm |
| Fork Length (On-Axis) | 400mm |
| Trail | 55.8mm mid/neutral |
| Mechanical Trail | 52.9mm |
| Wheel Flop | 16.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 115.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 103mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 48mm |
| Tire Outer Diameter | 680mm |
| Bike Length with Tires | 1737.2mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://keystone-bicycle-co.shoplightspeed.com/bassi-x-keystone-belmont-frameset.html