2018 Ritchey Design P-650B Base M (17")

Build

650B/27.5 in × 2.25 in

Insights

Somewhat 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
583mm
Reach
421mm
Stack to Reach Ratio
1.38:1
Seat Tube Length, C-T
431mm
Top Tube Length, Effective/Horizontal Center
595mm
Top Tube Length, Actual C-C
572mm
Top Tube Slope
12.4deg
Head Tube Angle
70deg
Seat Tube Angle
73.5deg
Head Tube Length
115mm
Bottom Bracket Drop
50mm
Bottom Bracket Height
299.2mm
Chainstay Length
432mm
Chainstay Length Horizontal
429.1mm
Front-Center
661.8mm
Front-Center Horizontal
659.9mm
Wheelbase
1089mm
Fork Offset/Rake
42mm
Fork Length (Axle-To-Crown)
459mm
Trail
82.4mm
very high
Mechanical Trail
77.4mm
Wheel Flop
26.5mm
Standover Height
756mm
Tire to Pedal Spindle Distance
With 170 mm cranks
142.6mm
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
1787.3mm
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