2026 DIY Carbon Bikes GRB700 Base 58
Build
700C/29 in × 30 mm
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 | 609.7mm |
| Reach | 406.1mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 566mm |
| Top Tube Length, Effective/Horizontal Center | 592.5mm |
| Top Tube Slope | 6.8deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 187mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 270mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 429.2mm |
| Front-Center | 648.4mm |
| Front-Center Horizontal | 644.4mm |
| Wheelbase | 1073.6mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 400mm |
| Trail | 64.5mm mid/neutral |
| Mechanical Trail | 61mm |
| Wheel Flop | 19.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 137.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 100mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 30mm |
| Tire Outer Diameter | 682mm |
| Bike Length with Tires | 1755.6mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:www.diycarbonbikes.com