2025 Isaac Cycle Boson Base S
Build
700C/29 in × 30 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Isaac Cycle Boson
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 538.5mm |
| Reach | 368.3mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-T | 455mm |
| Top Tube Length, Effective/Horizontal Unknown | 512.6mm |
| Top Tube Slope | 11.5deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 142.4mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 586.7mm |
| Front-Center Horizontal | 582.5mm |
| Wheelbase | 986.5mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 371mm |
| Trail | 64.5mm mid/neutral |
| Mechanical Trail | 61mm |
| Wheel Flop | 19.9mm |
| Standover Height | 755.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 75.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 101mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 30mm |
| Tire Outer Diameter | 682mm |
| Bike Length with Tires | 1668.5mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.isaac-cycle.com/en_US/p/bike-boson-mineral-white-m--r7150-di2--50-34--four-rd/75591/