2012 Jamis Bicycles Beatnik Base 50cm
Build
700C/29 in × 25 mm
Insights
Very upright stack and reach vs trend of track/fixed-gear bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 544mm |
| Reach | 372.3mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-TTT | 497mm |
| Top Tube Length, Effective/Horizontal Center | 520mm |
| Top Tube Length, Actual C-C | 510mm |
| Top Tube Slope | 5deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 95mm |
| Bottom Bracket Drop | 61mm |
| Bottom Bracket Height | 275mm |
| Chainstay Length | 405mm |
| Chainstay Length Horizontal | 400.4mm |
| Front-Center | 576.9mm |
| Front-Center Horizontal | 573.6mm |
| Wheelbase | 974mm |
| Fork Offset/Rake | 46mm |
| Trail | 60.8mm mid/neutral |
| Mechanical Trail | 57.8mm |
| Wheel Flop | 17.9mm |
| Standover Height | 761mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 70.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1646mm |
| Crank Length | 170mm |
| Handlebar Width | 540mm |
| Stem Length | 80mm |
| Stem Angle | 17deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.jamisbikes.com/wp-content/uploads/2022/02/12_JAMIS_CATALOG.pdf