2025 Primos Mono Base
- Category
- Off-road Touring
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Disc brake
Geometry
Medium | Large | |
Stack | 584mm | 599mm |
Reach | 391mm | 420mm |
Stack to Reach Ratio | 1.49:1 | 1.43:1 |
Seat Tube Length, Unknown | 453mm | 499mm |
Top Tube Length, Effective/Horizontal Unknown | 584mm | 619mm |
Top Tube Slope | 16.1deg | 12.2deg |
Head Tube Angle | 70deg | 71deg |
Seat Tube Angle | 72deg | 72deg |
Head Tube Length | 163mm | 167mm |
Bottom Bracket Drop | 65mm | 65mm |
Bottom Bracket Height | 282.9mm | 282.9mm |
Chainstay Length | 445mm | 445mm |
Chainstay Length Horizontal | 440.2mm | 440.2mm |
Front-Center | 635.1mm | 646.1mm |
Front-Center Horizontal | 631.8mm | 642.8mm |
Wheelbase | 1072mm | 1083mm |
Fork Offset/Rake | 45mm | 45mm |
Fork Length (Axle-To-Crown) | 420mm | 420mm |
Trail | 78.7mm high | 72.2mm high |
Mechanical Trail | 74mm | 68.3mm |
Wheel Flop | 25.3mm | 22.2mm |
Tire to Pedal Spindle | 117.2mm 170 mm cranks | 128.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 112.9mm 170 mm cranks | 112.9mm 170 mm cranks |
Base Build
Medium | Large | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.2in | 2.2in |
Tire Outer Diameter | 695.8mm | 695.8mm |
Bike Length with Tires | 1767.8mm | 1778.8mm |
Crank Length | 170mm | 170mm |
Handlebar Width | 610mm | 680mm |
Stem Length | 90mm | 100mm |
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
Off-road TouringSource:https://primoscycles.com/products/mono-bicycle