2020 Sour Bicycles Clueless Base
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS | S | M | L | XL | XXL | |
Stack | 556.7mm | 574.6mm | 596mm | 620.2mm | 629.6mm | 650.7mm |
Reach | 365.6mm | 370.3mm | 373.3mm | 375.4mm | 387.5mm | 394.8mm |
Stack to Reach Ratio | 1.52:1 | 1.55:1 | 1.6:1 | 1.65:1 | 1.62:1 | 1.65:1 |
Seat Tube Length, C-T | 490mm | 520mm | 540mm | 560mm | 580mm | 610mm |
Top Tube Length, Effective/Horizontal HT Top | 520mm | 535mm | 550mm | 565mm | 580mm | 600mm |
Top Tube Slope | 9.7deg | 8.3deg | 8.5deg | 8.9deg | 7.7deg | 6.8deg |
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 | 140mm | 165mm | 185mm | 200mm | 220mm |
Bottom Bracket Drop | 76mm | 76mm | 74mm | 74mm | 72mm | 72mm |
Bottom Bracket Height | 270mm | 270mm | 272mm | 272mm | 274mm | 274mm |
Chainstay Length | 426mm | 426mm | 426mm | 426mm | 426mm | 426mm |
Chainstay Length Horizontal | 419.2mm | 419.2mm | 419.5mm | 419.5mm | 419.9mm | 419.9mm |
Front-Center | 583.8mm | 584.8mm | 595.1mm | 605mm | 614.4mm | 622.3mm |
Front-Center Horizontal | 578.8mm | 579.8mm | 590.5mm | 600.5mm | 610.1mm | 618.1mm |
Wheelbase | 998mm | 999mm | 1010mm | 1020mm | 1030mm | 1038mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Fork Length (Axle-To-Crown) | 393mm | 393mm | 393mm | 393mm | 393mm | 393mm |
Trail | 71.5mm high | 65.1mm high | 65.1mm high | 65.1mm high | 61.9mm mid/neutral | 58.7mm mid/neutral |
Mechanical Trail | 67.7mm | 61.9mm | 61.9mm | 61.9mm | 59mm | 56.2mm |
Wheel Flop | 22mm | 19.1mm | 19.1mm | 19.1mm | 17.8mm | 16.4mm |
Tire to Pedal Spindle | 67.8mm 170 mm cranks | 68.8mm 170 mm cranks | 79.1mm 170 mm cranks | 89mm 170 mm cranks | 98.4mm 170 mm cranks | 106.3mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 100mm 170 mm cranks | 100mm 170 mm cranks | 102mm 170 mm cranks | 102mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks |
Base Build
XS | S | M | L | XL | XXL | |
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 |
Tire Width | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm |
Tire Width Max | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm |
Tire Outer Diameter | 692mm | 692mm | 692mm | 692mm | 692mm | 692mm |
Bike Length with Tires | 1690mm | 1691mm | 1702mm | 1712mm | 1722mm | 1730mm |
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
Endurance RoadSource:https://sour.bike/en/shop/models/271/clueless?c=122