2021 Transition Bikes Spire Base MD High

Build

700C/29 in × 2.4 in

Insights

Average stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Design deviates from other sizes of Transition Bikes Spire
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
619mm
Reach
460mm
Stack to Reach Ratio
1.35:1
Seat Tube Length, Unknown
390mm
Top Tube Length, Effective/Horizontal Unknown
577mm
Head Tube Angle
63deg
Effective Seat Tube Angle, Unknown
78.8deg
Head Tube Length
100mm
Bottom Bracket Drop
25mm
Bottom Bracket Height
347mm
Chainstay Length
446mm
Chainstay Length Horizontal
445.3mm
Front-Center
812.1mm
Front-Center Horizontal
811.7mm
Wheelbase
1257mm
Fork Offset/Rake
44mm
Fork Length (Axle-To-Crown)
584mm
Trail
140.1mm
very high
Mechanical Trail
124.9mm
Wheel Flop
56.7mm
Standover Height
700mm
Tire to Pedal Spindle Distance
With 165 mm cranks
275.1mm
Pedal Spindle to Ground Clearance
With 165 mm cranks
182mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
2.4in
Tire Outer Diameter
743.9mm
Bike Length with Tires
2000.9mm
Crank Length
165mm
Handlebar Width
800mm
Stem Length
30mm
Suspension Type
Full suspension
Bar Type
Flat Bar
Fork Travel
170mm
Rear Travel
170mm
Suspension Sag
Unknown
Frame Material
Unknown
Fork Material
Unknown
Brake Type
Disc

Published Sizing Recommendations

Height
5 ft 5 in
to
6 ft 0 in
Source:https://www.transitionbikes.com/Bikes_Spire.cfm