2025 Pashley Prospero Frameset M

Build

650B/27.5 in × 48 mm

Insights

Very aggressive stack and reach vs trend of comfort bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
582mm
Reach
464mm
Stack to Reach Ratio
1.25:1
Seat Tube Length, C-T
490mm
Top Tube Length, Effective/Horizontal HT Top
580mm
Top Tube Slope
10.6deg
Head Tube Angle
69deg
Seat Tube Angle
73deg
Head Tube Length
180mm
Bottom Bracket Drop
68mm
Bottom Bracket Height
272mm
Chainstay Length
424mm
Chainstay Length Horizontal
418.5mm
Front-Center
734.1mm
Front-Center Horizontal
730.9mm
Wheelbase
1149.4mm
Fork Offset/Rake
65mm
Trail
60.9mm
mid/​neutral
Mechanical Trail
56.9mm
Wheel Flop
20.4mm
Tire to Pedal Spindle Distance
With 170 mm cranks
224.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
102mm

Frameset Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
48mm
Tire Outer Diameter
680mm
Bike Length with Tires
1829.4mm
Stem Length
90mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Unknown
Source:https://www.pashley.co.uk/products/prospero-frameset