2018 Ritchey Design P-650B Base S (15")

Build

650B/27.5 in × 2.25 in

Insights

Very aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
567mm
Reach
411mm
Stack to Reach Ratio
1.38:1
Seat Tube Length, C-T
381mm
Top Tube Length, Effective/Horizontal Center
580mm
Top Tube Length, Actual C-C
560mm
Top Tube Slope
23.3deg
Head Tube Angle
69.5deg
Seat Tube Angle
73.5deg
Head Tube Length
100mm
Bottom Bracket Drop
50mm
Bottom Bracket Height
299.2mm
Chainstay Length
432mm
Chainstay Length Horizontal
429.1mm
Front-Center
650.8mm
Front-Center Horizontal
648.9mm
Wheelbase
1078mm
Fork Offset/Rake
42mm
Fork Length (Axle-To-Crown)
459mm
Trail
85.7mm
very high
Mechanical Trail
80.3mm
Wheel Flop
28.1mm
Standover Height
719mm
Tire to Pedal Spindle Distance
With 170 mm cranks
131.7mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
129.2mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.25in
Tire Outer Diameter
698.3mm
Bike Length with Tires
1776.3mm
Suspension Type
Hardtail (Front suspension)
Bar Type
Flat Bar
Fork Travel
Unknown
Suspension Sag
Unknown
Frame Material
Steel
Fork Material
Unknown
Brake Type
Disc
Source:https://us.ritcheylogic.com/media/itm/magb1/Productfiles/97450008002/1521470425_ritchey-p650b-geometry.pdf