2026 J.Guillem Bicycles Arta Base 58
Build
700C/29 in × 45 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 619mm |
| Reach | 385mm |
| Stack to Reach Ratio | 1.61:1 |
| Seat Tube Length, C-T | 505mm |
| Seat Tube Length, C-TTT | 550mm |
| Top Tube Length, Effective/Horizontal Center | 574mm |
| Top Tube Slope | 14.3deg |
| Head Tube Angle | 72.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 190mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 443mm |
| Chainstay Length Horizontal | 436.6mm |
| Front-Center | 613mm |
| Front-Center Horizontal | 598.4mm |
| Wheelbase | 1035mm |
| Fork Offset/Rake | 39.9mm |
| Trail | 70.4mm high |
| Mechanical Trail | 67.1mm |
| Wheel Flop | 20.2mm |
| Standover Height | 813mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 87mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1747mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.jguillem.com/en/bikes/arta