2025 Yishunbike G1055 Base 490/XS
Build
700C/29 in × 50 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Yishunbike G1055
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 537.7mm |
| Reach | 375mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 490mm |
| Top Tube Length, Effective/Horizontal Center | 525mm |
| Top Tube Slope | 7.4deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 67mm |
| Bottom Bracket Height | 294mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 429.8mm |
| Front-Center | 599.5mm |
| Front-Center Horizontal | 595.7mm |
| Wheelbase | 1025.5mm |
| Fork Offset/Rake | 50.9mm |
| Fork Length (On-Axis) | 395mm |
| Trail | 73.8mm high |
| Mechanical Trail | 69.6mm |
| Wheel Flop | 23.2mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 68.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 124mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 722mm |
| Bike Length with Tires | 1747.5mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.yishunbike.com/frames/gravel/g1055