2018 Felt Bicycles Surplus 70 Base 22
Build
650B/27.5 in × 2.8 in
Insights
Very upright stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 681mm |
| Reach | 442mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-C | 550mm |
| Top Tube Length, Effective/Horizontal HT Top | 650mm |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 140mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 298.1mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 435.2mm |
| Front-Center | 749mm |
| Front-Center Horizontal | 745.8mm |
| Wheelbase | 1181mm |
| Fork Offset/Rake | 51mm |
| Trail | 91.7mm very high |
| Mechanical Trail | 85mm |
| Wheel Flop | 31.9mm |
| Standover Height | 819mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 210.9mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 123.1mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1907.2mm |
| Crank Length | 175mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://99spokes.com/en-EU/bikes/felt/2018/surplus-70