2020 Surly Bikes Karate Monkey 27.5+ Rigid Fork MD

Build

650B/27.5 x 3 in

Insights

Average stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
597mm
Reach
427mm
Stack to Reach Ratio
1.4:1
Seat Tube Length, C-T
419mm
Top Tube Length, Effective/Horizontal HT Top
610mm
Top Tube Length, Actual C-C
575mm
Top Tube Slope
19.7deg
Head Tube Angle
69deg
Seat Tube Angle
73deg
Head Tube Length
100mm
Bottom Bracket Drop
55mm
Bottom Bracket Height
313.2mm
Chainstay Length
423mm
Chainstay Length Horizontal
419.4mm
Front-Center
685.8mm
Front-Center Horizontal
683.6mm
Wheelbase
1103mm
Fork Offset/Rake
47mm
Fork Length (Axle-To-Crown)
483mm
Trail
91mm
very high
Mechanical Trail
85mm
Wheel Flop
30.4mm
Standover Height
783mm
Tire to Pedal Spindle Distance
With 170 mm cranks
147.6mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
143.2mm

27.5+ Rigid Fork Build

Wheel Size
650B, 27.5 (584mm BSD)
Tire Width
3in
Tire Outer Diameter
736.4mm
Bike Length with Tires
1839.4mm
Suspension Type
Rigid, suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:https://surlybikes.com/bikes/karate_monkey