2026 DIY Carbon Bikes GRB700 Base 54
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
View all sizes
Geometry
| Stack | 565.3mm |
| Reach | 387.1mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-T | 528mm |
| Top Tube Length, Effective/Horizontal Center | 554.5mm |
| Top Tube Slope | 6.3deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 140mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 270mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 429.2mm |
| Front-Center | 614.4mm |
| Front-Center Horizontal | 610.1mm |
| Wheelbase | 1039.3mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 40mm |
| Trail | 64.5mm mid/neutral |
| Mechanical Trail | 61mm |
| Wheel Flop | 19.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 103.4mm |
| 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 | 1721.3mm |
| 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