2025 Bassi x Keystone Belmont Base 48.5cm
Build
650B/27.5 in × 48 mm
Insights
Somewhat upright 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 | 545mm |
| Reach | 364mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 485mm |
| Top Tube Length, Effective/Horizontal Center | 525mm |
| Top Tube Slope | 9.1deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 106.6mm |
| Bottom Bracket Drop | 67mm |
| Bottom Bracket Height | 273mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 424.8mm |
| Front-Center | 595.4mm |
| Front-Center Horizontal | 591.6mm |
| Wheelbase | 1016.4mm |
| Fork Offset/Rake | 55mm |
| Fork Length (On-Axis) | 400mm |
| Trail | 62.1mm mid/neutral |
| Mechanical Trail | 58.5mm |
| Wheel Flop | 19.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 85.4mm |
| 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 | 1696.4mm |
| 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