Bike-on-Bike
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
Geometry
Stack | 623mm | 597mm -26mm |
Reach | 420mm | 427mm +7mm |
Stack to Reach Ratio | 1.48:1 | 1.4:1 |
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 | — | 575mm |
Top Tube Slope | — | 19.7deg |
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 | 55mm +5mm |
Bottom Bracket Height | 305.5mm | 313.2mm +7.7mm |
Chainstay Length | 425mm | 423mm -2mm |
Chainstay Length Horizontal | 422.1mm | 419.4mm -2.7mm |
Front-Center | 688.8mm | 685.8mm -3mm |
Front-Center Horizontal | 687mm | 683.6mm -3.4mm |
Wheelbase | 1109mm | 1103mm -6mm |
Fork Offset/Rake | 50mm | 47mm -3mm |
Fork Length (On-Axis) | 420mm | — |
Fork Length (Axle-To-Crown) | — | 483mm |
Trail | 79.5mm high | 91mm +11.5mm very high |
Mechanical Trail | 74.5mm | 85mm +10.5mm |
Wheel Flop | 26.1mm | 30.4mm +4.3mm |
Standover Height | 796mm | 783mm -13mm |
Tire to Pedal Spindle | 158.3mm 175 mm cranks | 142.6mm -15.7mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 130.5mm 175 mm cranks | 138.2mm +7.7mm 175 mm cranks |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.5in | 3in +0.5in |
Tire Outer Diameter | 711mm | 736.4mm +25.4mm |
Bike Length with Tires | 1820mm | 1839.4mm +19.4mm |
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 |
| Frame Material | Steel | Steel |
| Fork Material | Steel | Steel |
| Brake Type | Disc | Disc |
| Features | Single-speed capable | Single-speed capable |
Meta
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| Source | https://surlybikes.com/bikes/ghost_grappler | https://surlybikes.com/bikes/karate_monkey |
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