Bike-on-Bike
Default Config
Default Config
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Surly Bikes Midnight Special
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Marin Bikes Nicasio
Geometry
Stack | 560mm | 574.5mm +14.5mm |
Reach | 389mm | 378.4mm -10.6mm |
Stack to Reach Ratio | 1.44:1 | 1.52:1 |
Seat Tube Length, C-T | — | 510mm |
Seat Tube Length, C-TTT | 540mm | — |
Top Tube Length, Effective/Horizontal HT Top | 555mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 545mm |
Top Tube Length, Actual C-C | 552mm | — |
Top Tube Slope | 2.4deg | 9.3deg +6.9deg |
Head Tube Angle | 72.5deg | 72deg -0.5deg |
Seat Tube Angle | 73.5deg | 73.5deg +0deg |
Head Tube Length | 125mm | 155mm +30mm |
Bottom Bracket Drop | 65mm | 72mm +7mm |
Bottom Bracket Height | 274mm | 267mm -7mm |
Chainstay Length | 425mm | 420mm -5mm |
Chainstay Length Horizontal | 420mm | 413.8mm -6.2mm |
Front-Center | 601.5mm | 589.8mm -11.7mm |
Front-Center Horizontal | 598mm | 585.4mm -12.6mm |
Wheelbase | 1018mm | 999.2mm -18.8mm |
Fork Offset/Rake | 50mm | 45mm -5mm |
Fork Length (Axle-To-Crown) | 400mm | — |
Trail | 54.5mm mid/neutral | 62.8mm +8.3mm mid/neutral |
Mechanical Trail | 51.9mm | 59.8mm +7.9mm |
Wheel Flop | 15.6mm | 18.5mm +2.9mm |
Standover Height | 806mm | 758.8mm -47.2mm |
Tire to Pedal Spindle | 87.5mm 175 mm cranks | 75.8mm -11.7mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 99mm 175 mm cranks | 92mm -7mm 175 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 47mm | 47mm +0mm |
Tire Outer Diameter | 678mm | 678mm +0mm |
Bike Length with Tires | 1696mm | 1677.2mm -18.8mm |
Crank Length | 175mm | 175mm +0mm |
Handlebar Width | 420mm | 420mm +0mm |
Stem Length | 100mm | 75mm -25mm |
Stem Angle | 6deg | — |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Steel | Steel |
| Fork Material | Steel | Steel |
| Brake Type | Disc | Disc |
Meta
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| Source | https://surlybikes.com/bikes/midnight_special | https://www.marinbikes.com/bikes/20-nicasio |
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