2022 J.Laverack Bicycles R J.ACK Disc Classic Base 50
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of J.Laverack Bicycles R J.ACK Disc Classic
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 520.7mm |
| Reach | 364mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 500mm |
| Top Tube Length, Effective/Horizontal Center | 523.2mm |
| Top Tube Length, Actual C-C | 510.4mm |
| Top Tube Slope | 5.6deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 409.4mm |
| Front-Center | 571.5mm |
| Front-Center Horizontal | 567.5mm |
| Wheelbase | 976.9mm |
| Fork Offset/Rake | 45mm |
| Trail | 69.1mm high |
| Mechanical Trail | 65.4mm |
| Wheel Flop | 21.3mm |
| Standover Height | 743mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 62.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 101mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1654.9mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.jlaverack.co.uk/r-jack-disc-titanium-frameset/#1513255300444-459684ae-ec90