2015 Koga Beachracer Base
- Category
- Progressive Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
50 | 54 | 56 | 58 | 60 | |
Stack | 548mm | 559mm | 573mm | 583mm | 592mm |
Reach | 388mm | 401mm | 411mm | 412mm | 421mm |
Stack to Reach Ratio | 1.41:1 | 1.39:1 | 1.39:1 | 1.42:1 | 1.41:1 |
Seat Tube Length, C-T | 500mm | 540mm | 560mm | 580mm | 600mm |
Top Tube Length, Effective/Horizontal HT Top | 540mm | 556mm | 570mm | 579mm | 591mm |
Top Tube Slope | 7.2deg | 4.1deg | 3.4deg | 2.6deg | 1.5deg |
Head Tube Angle | 70.5deg | 71deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 74.5deg | 74.5deg | 74.5deg | 74deg | 74deg |
Head Tube Length | 95mm | 105mm | 120mm | 130mm | 140mm |
Bottom Bracket Drop | 50mm | 50mm | 50mm | 50mm | 50mm |
Bottom Bracket Height | 321mm | 321mm | 321mm | 321mm | 321mm |
Chainstay Length | 445mm | 445mm | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 442.2mm | 442.2mm | 442.2mm | 442.2mm | 442.2mm |
Front-Center | 619.8mm | 631.8mm | 645.8mm | 649.7mm | 662.7mm |
Front-Center Horizontal | 617.8mm | 629.8mm | 643.8mm | 647.8mm | 660.8mm |
Wheelbase | 1060mm | 1072mm | 1086mm | 1090mm | 1103mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm |
Trail | 78.3mm high | 74.9mm high | 74.9mm high | 74.9mm high | 74.9mm high |
Mechanical Trail | 73.8mm | 70.8mm | 70.8mm | 70.8mm | 70.8mm |
Wheel Flop | 24.7mm | 23.1mm | 23.1mm | 23.1mm | 23.1mm |
Tire to Pedal Spindle | 78.8mm 170 mm cranks | 90.8mm 170 mm cranks | 99.8mm 175 mm cranks | 108.7mm 170 mm cranks | 121.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 151mm 170 mm cranks | 151mm 170 mm cranks | 146mm 175 mm cranks | 151mm 170 mm cranks | 151mm 170 mm cranks |
Base Build
50 | 54 | 56 | 58 | 60 | |
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 |
Tire Width | 60mm | 60mm | 60mm | 60mm | 60mm |
Tire Width Max | 2.35in | 2.35in | 2.35in | 2.35in | 2.35in |
Tire Outer Diameter | 742mm | 742mm | 742mm | 742mm | 742mm |
Bike Length with Tires | 1802mm | 1814mm | 1828mm | 1832mm | 1845mm |
Crank Length | — | — | 175mm | — | — |
Handlebar Width | — | — | 440mm | — | — |
Stem Length | — | — | 130mm | — | — |
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
Progressive GravelSource:Koga Specs Geometry 2015-2016