2021 J.Guillem Bicycles Atalaya 27.5 54CM
Build
650B/27.5 in × 2.1 in
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 550mm |
| Reach | 386mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 525mm |
| Seat Tube Length, C-C | 480mm |
| Top Tube Length, Effective/Horizontal Center | 550mm |
| Top Tube Slope | 5deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 140mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 275.3mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.1mm |
| Front-Center | 603mm |
| Front-Center Horizontal | 603.9mm |
| Wheelbase | 1018mm |
| Fork Offset/Rake | 47mm |
| Trail | 69.2mm high |
| Mechanical Trail | 65.4mm |
| Wheel Flop | 21.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 87.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105.3mm |
27.5 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1708.7mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://jguillem.com/bike/atalaya-gravel