2018 Ritchey Design P-650B Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Features
Disc brake
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

S (15")
M (17")
L (19")
XL (21")
Stack
567mm
583mm
597mm
611mm
Reach
411mm
421mm
431mm
447mm
Stack to Reach Ratio
1.38:1
1.38:1
1.39:1
1.37:1
Seat Tube Length, C-T
381mm
431mm
483mm
533mm
Top Tube Length, Effective/Horizontal Center
580mm
595mm
615mm
635mm
Top Tube Length, Actual C-C
560mm
572mm
590mm
612mm
Top Tube Slope
23.3deg
12.4deg
12.4deg
9.9deg
Head Tube Angle
69.5deg
70deg
70deg
70deg
Seat Tube Angle
73.5deg
73.5deg
73deg
73deg
Head Tube Length
100mm
115mm
130mm
145mm
Bottom Bracket Drop
50mm
50mm
50mm
50mm
Bottom Bracket Height
299.2mm
299.2mm
299.2mm
299.2mm
Chainstay Length
432mm
432mm
432mm
432mm
Chainstay Length Horizontal
429.1mm
429.1mm
429.1mm
429.1mm
Front-Center
650.8mm
661.8mm
676.8mm
697.7mm
Front-Center Horizontal
648.9mm
659.9mm
674.9mm
695.9mm
Wheelbase
1078mm
1089mm
1104mm
1125mm
Fork Offset/Rake
42mm
42mm
42mm
42mm
Fork Length (Axle-To-Crown)
459mm
459mm
459mm
459mm
Trail
85.7mm
very high
82.4mm
very high
82.4mm
very high
82.4mm
very high
Mechanical Trail
80.3mm
77.4mm
77.4mm
77.4mm
Wheel Flop
28.1mm
26.5mm
26.5mm
26.5mm
Standover Height
719mm
756mm
792mm
826mm
Tire to Pedal Spindle
131.7mm
170 mm cranks
142.6mm
170 mm cranks
157.6mm
170 mm cranks
178.6mm
170 mm cranks
Pedal Spindle to Ground Clearance
129.2mm
170 mm cranks
129.2mm
170 mm cranks
129.2mm
170 mm cranks
129.2mm
170 mm cranks

Base Build

S (15")
M (17")
L (19")
XL (21")
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
2.25in
2.25in
2.25in
2.25in
Tire Outer Diameter
698.3mm
698.3mm
698.3mm
698.3mm
Bike Length with Tires
1776.3mm
1787.3mm
1802.3mm
1823.3mm

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 Scale
Source:https://us.ritcheylogic.com/media/itm/magb1/Productfiles/97450008002/1521470425_ritchey-p650b-geometry.pdf