2018 Surly Bikes Karate Monkey 27.5+ S
Build
650B/27.5 in × 3 in
Stack and Reach vs. Category Trend
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Geometry
| Stack | 597mm |
| Reach | 402mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 368mm |
| Top Tube Length, Effective/Horizontal Center | 585mm |
| Top Tube Length, Actual C-C | 568mm |
| Top Tube Slope | 27deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 313.2mm |
| Chainstay Length | 423mm |
| Chainstay Length Horizontal | 419.4mm |
| Front-Center | 660.9mm |
| Front-Center Horizontal | 658.6mm |
| Wheelbase | 1078mm |
| Fork Offset/Rake | 47mm |
| Fork Length (Axle-To-Crown) | 483mm |
| Trail | 91mm very high |
| Mechanical Trail | 85mm |
| Wheel Flop | 30.4mm |
| Standover Height | 761mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 122.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 143.2mm |
27.5+ Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 3in |
| Tire Outer Diameter | 736.4mm |
| Bike Length with Tires | 1814.4mm |
| Crank Length | 170mm |
| Handlebar Width | 750mm |
| Stem Length | 70mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://surlybikes.com/bikes/karate_monkey/geometry