Bike-on-Bike
57
No Diagram
Default Config
Default Config
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A21
Geometry
Stack | 601mm | 597mm -4mm |
Reach | 382mm | 390mm +8mm |
Stack to Reach Ratio | 1.57:1 | 1.53:1 |
Seat Tube Length, C-T | — | 535mm |
Seat Tube Length, C-C | 510mm | — |
Top Tube Length, Effective/Horizontal HT Top | 560mm | 569mm +9mm |
Top Tube Slope | — | 8.8deg |
Head Tube Angle | 71deg | 70deg -1deg |
Seat Tube Angle | 73.5deg | 73.5deg +0deg |
Head Tube Length | 175mm | 164mm -11mm |
Bottom Bracket Drop | — | 73mm |
Bottom Bracket Height | — | 266mm |
Chainstay Length | 430mm | 430mm +0mm |
Chainstay Length Horizontal | — | 423.8mm |
Front-Center | — | 633mm |
Front-Center Horizontal | — | 628.2mm |
Wheelbase | 1037mm | 1052mm +15mm |
Fork Offset/Rake | — | 45mm |
Trail | — — | 75.5mm high |
Mechanical Trail | — | 70.9mm |
Wheel Flop | — | 24.3mm |
Standover Height | 851mm | — |
Tire to Pedal Spindle | — 170 mm cranks | 124mm 170 mm cranks |
Pedal Spindle to Ground Clearance | — 170 mm cranks | 96mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 45mm | 47mm +2mm |
Tire Outer Diameter | 712mm | 678mm -34mm |
Bike Length with Tires | 1749mm | 1730mm -19mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Aluminum | Titanium |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://99spokes.com/en-EU/bikes/rose/2024/backroad-al-grx-rx600 | https://www.serk.cc/a21/ |
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