2022 J.Laverack Bicycles R J.ACK Disc Classic Base 48
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 | 509.6mm |
| Reach | 358mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 480mm |
| Top Tube Length, Effective/Horizontal Center | 513.8mm |
| Top Tube Length, Actual C-C | 499.6mm |
| Top Tube Slope | 6.6deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 409.4mm |
| Front-Center | 566.2mm |
| Front-Center Horizontal | 562.1mm |
| Wheelbase | 971.5mm |
| Fork Offset/Rake | 45mm |
| Trail | 72.3mm high |
| Mechanical Trail | 68.2mm |
| Wheel Flop | 22.8mm |
| Standover Height | 728.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 57.2mm |
| 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 | 1649.5mm |
| 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