2026 Giant Bicycles Seek 1 One Size
Build
650B/27.5 in × 28 mm
Stack and Reach vs. Category Trend
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Geometry
| Stack | 476.5mm |
| Reach | 325.5mm |
| Stack to Reach Ratio | 1.46:1 |
| Top Tube Length, Effective/Horizontal HT Top | 427mm |
| Head Tube Angle | 70.6deg |
| Seat Tube Angle | 78deg |
| Head Tube Length | 88mm |
| Chainstay Length | 400mm |
| Wheelbase | 918.1mm |
| Trail | — — |
| Standover Height | 610mm |
| Tire to Pedal Spindle Distance With 130 mm cranks | — |
| Pedal Spindle to Ground Clearance With 130 mm cranks | — |
1 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 640mm |
| Bike Length with Tires | 1558.1mm |
| Crank Length | 130mm |
| Handlebar Width | 320mm |
| Stem Length | 60mm |
| Stem Angle | -8deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 130 cm to 150 cm |
Source:https://www.giant-bicycles.com/gb/seek-1-2026