2026 DIY Carbon Bikes GRB700 Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
49 | 52 | 54 | 56 | 58 | |
Stack | 519mm | 544.4mm | 565.3mm | 589.9mm | 609.7mm |
Reach | 374.1mm | 378.4mm | 387.1mm | 398.2mm | 406.1mm |
Stack to Reach Ratio | 1.39:1 | 1.44:1 | 1.46:1 | 1.48:1 | 1.5:1 |
Seat Tube Length, C-T | 477mm | 507mm | 528mm | 546mm | 566mm |
Top Tube Length, Effective/Horizontal Center | 518mm | 534.5mm | 554.5mm | 578.5mm | 592.5mm |
Top Tube Slope | 6.8deg | 6.3deg | 6.3deg | 6.9deg | 6.8deg |
Head Tube Angle | 70deg | 70deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 74.5deg | 74deg | 73.5deg | 73deg | 73deg |
Head Tube Length | 95mm | 122mm | 140mm | 166mm | 187mm |
Bottom Bracket Drop | 71mm | 71mm | 71mm | 71mm | 71mm |
Bottom Bracket Height | 270mm | 270mm | 270mm | 270mm | 270mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 429.2mm | 429.2mm | 429.2mm | 429.2mm | 429.2mm |
Front-Center | 594.6mm | 608.1mm | 614.4mm | 633.7mm | 648.4mm |
Front-Center Horizontal | 590.3mm | 603.9mm | 610.1mm | 629.7mm | 644.4mm |
Wheelbase | 1019.5mm | 1033.1mm | 1039.3mm | 1058.9mm | 1073.6mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm |
Fork Length, Unknown | 40mm | 40mm | 40mm | 40mm | 400mm |
Trail | 70.9mm high | 70.9mm high | 64.5mm mid/neutral | 64.5mm mid/neutral | 64.5mm mid/neutral |
Mechanical Trail | 66.6mm | 66.6mm | 61mm | 61mm | 61mm |
Wheel Flop | 22.8mm | 22.8mm | 19.9mm | 19.9mm | 19.9mm |
Tire to Pedal Spindle | 83.6mm 170 mm cranks | 97.1mm 170 mm cranks | 103.4mm 170 mm cranks | 122.7mm 170 mm cranks | 137.4mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 100mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks |
Base Build
49 | 52 | 54 | 56 | 58 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | 1701.5mm | 1715.1mm | 1721.3mm | 1740.9mm | 1755.6mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
All-road/GravelSource:www.diycarbonbikes.com
