2022 Gunnar Cycles USA Fastlane FM 48
Build
650B/27.5 in × 38 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Gunnar Cycles USA Fastlane
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 564mm |
| Reach | 360mm |
| Stack to Reach Ratio | 1.57:1 |
| Seat Tube Length, Unknown | 420mm |
| Top Tube Length, Effective/Horizontal Unknown | 500mm |
| Top Tube Slope | 17.6deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 76deg |
| Head Tube Length | 122mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 262mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 419.5mm |
| Front-Center | 597mm |
| Front-Center Horizontal | 593.5mm |
| Wheelbase | 1013mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 410mm |
| Trail | 66.9mm high |
| Mechanical Trail | 62.9mm |
| Wheel Flop | 21.5mm |
| Standover Height | 719mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 97mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 92mm |
FM Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 38mm |
| Tire Outer Diameter | 660mm |
| Bike Length with Tires | 1673mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.montlakebike.com/product/gunnar-fastlane-fm-custom-calculator-10536.htm