2020 Brother Cycles Big Bro Frameset 27.5+ Large (20)
Build
650B/27.5 in × 3 in
Stack and Reach vs. Category Trend
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Geometry
| Stack | 616mm |
| Reach | 432mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 508mm |
| Top Tube Length, Effective/Horizontal HT Top | 620mm |
| Top Tube Length, Actual C-C | 595mm |
| Top Tube Slope | 12.6deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 308.2mm |
| Chainstay Length | 445mm |
| Chainstay Length Horizontal | 440.9mm |
| Front-Center | 679.7mm |
| Front-Center Horizontal | 677.1mm |
| Wheelbase | 1118mm |
| Fork Offset/Rake | 46mm |
| Fork Length (Axle-To-Crown) | 483mm |
| Trail | 81.6mm very high |
| Mechanical Trail | 76.9mm |
| Wheel Flop | 25.7mm |
| Standover Height | 840mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 141.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 138.2mm |
Frameset 27.5+ Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 3in |
| Tire Outer Diameter | 736.4mm |
| Bike Length with Tires | 1854.4mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
| Features | Single-speed capable |
Source:https://www.brothercycles.com/shop/frames/big-bro/