2025 J.Laverack Bicycles Contour Base
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Titanium
- Suspension
- 100mm fork travel
- Features
- Disc brake
Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
2x Small | Extra Small | Small | Medium | Large | Extra Large | 2x Large | 3x Large | |
Stack | 606.2mm | 613.2mm | 617.9mm | 622.5mm | 627.2mm | 631.9mm | 636.6mm | 641.3mm |
Reach | 395mm | 410mm | 420mm | 430mm | 440mm | 450mm | 460mm | 470mm |
Stack to Reach Ratio | 1.53:1 | 1.5:1 | 1.47:1 | 1.45:1 | 1.43:1 | 1.4:1 | 1.38:1 | 1.36:1 |
Seat Tube Length, Effective Unknown | 460mm | 470mm | 480mm | 490mm | 500mm | 510mm | 520mm | 530mm |
Top Tube Length, Effective/Horizontal Center | 581.6mm | 598.5mm | 609.9mm | 621.4mm | 633.6mm | 644.3mm | 655.7mm | 667.2mm |
Top Tube Length, Actual C-C | 551.5mm | 567.4mm | 578.3mm | 589.4mm | 601.1mm | 611.9mm | 623.3mm | 634.8mm |
Top Tube Slope | 17deg | 17deg | 17deg | 17deg | 17deg | 17deg | 17deg | 17deg |
Head Tube Angle | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 95mm | 100mm | 105mm | 110mm | 115mm | 120mm | 125mm | 130mm |
Bottom Bracket Drop | 62mm | 62mm | 62mm | 62mm | 62mm | 62mm | 62mm | 62mm |
Bottom Bracket Height | 304.9mm | 304.9mm | 304.9mm | 304.9mm | 304.9mm | 304.9mm | 304.9mm | 304.9mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 430.6mm | 430.6mm | 430.6mm | 430.6mm | 430.6mm | 430.6mm | 430.6mm | 430.6mm |
Front-Center | 661.4mm | 673.4mm | 685.1mm | 696.8mm | 708.5mm | 720.2mm | 731.9mm | 743.6mm |
Front-Center Horizontal | 658.5mm | 670.5mm | 682.2mm | 694mm | 706mm | 717.5mm | 729.2mm | 741mm |
Wheelbase | 1089.1mm | 1101.1mm | 1112.8mm | 1124.6mm | 1136.6mm | 1148.1mm | 1159.8mm | 1171.6mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
Trail | 82.7mm very high | 82.7mm very high | 82.7mm very high | 82.7mm very high | 82.7mm very high | 82.7mm very high | 82.7mm very high | 82.7mm very high |
Mechanical Trail | 77.5mm | 77.5mm | 77.5mm | 77.5mm | 77.5mm | 77.5mm | 77.5mm | 77.5mm |
Wheel Flop | 27.1mm | 27.1mm | 27.1mm | 27.1mm | 27.1mm | 27.1mm | 27.1mm | 27.1mm |
Standover Height | 811.2mm | 818.7mm | 825.7mm | 832.8mm | 840.1mm | 847.4mm | 854.4mm | 861.4mm |
Tire to Pedal Spindle | 124.5mm 170 mm cranks | 136.5mm 170 mm cranks | 148.2mm 170 mm cranks | 159.9mm 170 mm cranks | 171.6mm 170 mm cranks | 183.3mm 170 mm cranks | 195mm 170 mm cranks | 206.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks | 134.9mm 170 mm cranks |
Base Build
2x Small | Extra Small | Small | Medium | Large | Extra Large | 2x Large | 3x Large | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in | 2.2in |
Tire Width Max | 2.44in | 2.44in | 2.44in | 2.44in | 2.44in | 2.44in | 2.44in | 2.44in |
Tire Outer Diameter | 733.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm | 733.8mm |
Bike Length with Tires | 1822.9mm | 1834.9mm | 1846.6mm | 1858.4mm | 1870.4mm | 1881.9mm | 1893.6mm | 1905.4mm |
Stem Length | 70mm | 70mm | 70mm | 80mm | 80mm | 90mm | 90mm | 90mm |
Published Sizing Recommendations
Height | 4 ft 9 in to 5 ft 2 in | 5 ft 1 in to 5 ft 4 in | 5 ft 3 in to 5 ft 7 in | 5 ft 6 in to 5 ft 10 in | 5 ft 8 in to 6 ft 0 in | 5 ft 11 in to 6 ft 2 in | 6 ft 1 in to 6 ft 4 in | 6 ft 3 in to 6 ft 6 in |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Hardtail Cross-country MTBSource:https://www.jlaverack.co.uk/contour-range/#1513255300444-459684ae-ec90