2018 Kona Bicycle Company PhD Base
- Category
- Fitness
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
Size | 49 | 52 | 54 | 56 | 58 | 61 | |
Stack | — | 535mm | 558mm | 575mm | 594mm | 613mm | 634mm |
Reach | — | 372mm | 375mm | 380mm | 383mm | 393mm | 400mm |
Stack to Reach Ratio | — | 1.44:1 | 1.49:1 | 1.51:1 | 1.55:1 | 1.56:1 | 1.59:1 |
Seat Tube Length, Unknown | — | 490mm | 520mm | 540mm | 560mm | 580mm | 610mm |
Top Tube Length, Effective/Horizontal Unknown | — | 520mm | 535mm | 550mm | 565mm | 580mm | 600mm |
Top Tube Slope | — | 7.1deg | 6.4deg | 6.1deg | 6.1deg | 5.9deg | 5.1deg |
Head Tube Angle | — | 71deg | 72deg | 72deg | 72deg | 72.5deg | 73deg |
Seat Tube Angle | — | 74.5deg | 74deg | 73.5deg | 73deg | 73deg | 72.5deg |
Head Tube Length | — | 125mm | 145mm | 165mm | 185mm | 205mm | 225mm |
Bottom Bracket Drop | — | 76mm | 76mm | 74mm | 74mm | 72mm | 72mm |
Bottom Bracket Height | — | 265mm | 265mm | 267mm | 267mm | 269mm | 269mm |
Chainstay Length | — | 422mm | 422mm | 422mm | 422mm | 425mm | 425mm |
Chainstay Length Horizontal | — | 415.1mm | 415.1mm | 415.5mm | 415.5mm | 418.9mm | 418.9mm |
Front-Center | — | 581mm | 583mm | 593mm | 603mm | 614mm | 622mm |
Front-Center Horizontal | — | 575.9mm | 577.9mm | 589.5mm | 598.5mm | 609.1mm | 618.1mm |
Wheelbase | — | 991mm | 993mm | 1005mm | 1014mm | 1028mm | 1037mm |
Fork Offset/Rake | — | 44mm | 44mm | 44mm | 44mm | 44mm | 44mm |
Fork Length, Unknown | — | 376mm | 376mm | 376mm | 376mm | 376mm | 376mm |
Trail | — — | 70.9mm high | 64.5mm mid/​neutral | 64.5mm mid/​neutral | 64.5mm mid/​neutral | 61.4mm mid/​neutral | 58.2mm mid/​neutral |
Mechanical Trail | — | 67mm | 61.4mm | 61.4mm | 61.4mm | 58.5mm | 55.7mm |
Wheel Flop | — | 21.8mm | 19mm | 19mm | 19mm | 17.6mm | 16.3mm |
Standover Height | — | 735mm | 760mm | 780mm | 800mm | 820mm | 845mm |
Tire to Pedal Spindle | — 170 mm cranks | 70mm 170 mm cranks | 72mm 170 mm cranks | 82mm 170 mm cranks | 92mm 170 mm cranks | 103mm 170 mm cranks | 111mm 170 mm cranks |
Pedal Spindle to Ground Clearance | — 170 mm cranks | 95mm 170 mm cranks | 95mm 170 mm cranks | 97mm 170 mm cranks | 97mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks |
Base Build
Size | 49 | 52 | 54 | 56 | 58 | 61 | |
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 |
Tire Width | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | — | 1673mm | 1675mm | 1687mm | 1696mm | 1710mm | 1719mm |
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
FitnessSource:https://konaworld.com/archive/2018/phd.cfm