Bike-on-Bike
Default Config
Default Config
Insights
Very aggressive stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Surly Bikes Ghost Grappler
Somewhat aggressive stack and reach vs trend of hardtail trail mtb bikes
Geometry
Stack | 623mm | 602mm -21mm |
Reach | 420mm | 426mm +6mm |
Stack to Reach Ratio | 1.48:1 | 1.41:1 |
Seat Tube Length, C-T | 437.2mm | 419mm -18.2mm |
Top Tube Length, Effective/Horizontal HT Top | — | 610mm |
Top Tube Length, Effective/Horizontal Unknown | 610mm | — |
Top Tube Length, Actual C-C | — | 573mm |
Top Tube Slope | — | 20.2deg |
Head Tube Angle | 69.5deg | 69deg -0.5deg |
Seat Tube Angle | — | 73deg |
Seat Tube Angle, Unknown | 73deg | — |
Head Tube Length | 200mm | 100mm -100mm |
Bottom Bracket Drop | 50mm | 65mm +15mm |
Bottom Bracket Height | 305.5mm | 312mm +6.5mm |
Chainstay Length | 425mm | 435mm +10mm |
Chainstay Length Horizontal | 422.1mm | 430.1mm +8mm |
Front-Center | 688.8mm | 686mm -2.8mm |
Front-Center Horizontal | 687mm | 682.9mm -4.1mm |
Wheelbase | 1109mm | 1113mm +4mm |
Fork Offset/Rake | 50mm | 47mm -3mm |
Fork Length (On-Axis) | 420mm | — |
Fork Length (Axle-To-Crown) | — | 483mm |
Trail | 79.5mm high | 94.4mm +14.9mm very high |
Mechanical Trail | 74.5mm | 88.1mm +13.6mm |
Wheel Flop | 26.1mm | 31.6mm +5.5mm |
Standover Height | 796mm | 797mm +1mm |
Tire to Pedal Spindle | 158.3mm 175 mm cranks | 133.9mm -24.4mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 130.5mm 175 mm cranks | 137mm +6.5mm 175 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.5in | 2.6in +0.1in |
Tire Outer Diameter | 711mm | 754.1mm +43.1mm |
Bike Length with Tires | 1820mm | 1867.1mm +47.1mm |
Crank Length | 175mm | 175mm +0mm |
Handlebar Width | 440mm | 800mm +360mm |
Stem Length | 70mm | 70mm +0mm |
Stem Angle | 6deg | 7deg +1deg |
| Suspension Type | Rigid, non-suspension corrected | Rigid, suspension corrected |
| Bar Type | Drop Bar | Flat Bar |
| Fork Travel | — | 120 |
| Frame Material | Steel | Steel |
| Fork Material | Steel | Steel |
| Brake Type | Disc | Disc |
| Features | Single-speed capable | — |
Meta
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| Source | https://surlybikes.com/bikes/ghost_grappler | n/a |
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