2020 Surly Bikes Karate Monkey 27.5+ Rigid Fork XL

Build

650B/27.5 x 3 in

Insights

Somewhat aggressive stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
615mm
Reach
472mm
Stack to Reach Ratio
1.3:1
Seat Tube Length, C-T
521mm
Top Tube Length, Effective/Horizontal HT Top
660mm
Top Tube Length, Actual C-C
624.5mm
Top Tube Slope
10.6deg
Head Tube Angle
69deg
Seat Tube Angle
73deg
Head Tube Length
120mm
Bottom Bracket Drop
55mm
Bottom Bracket Height
313.2mm
Chainstay Length
423mm
Chainstay Length Horizontal
419.4mm
Front-Center
737.6mm
Front-Center Horizontal
735.6mm
Wheelbase
1155mm
Fork Offset/Rake
47mm
Fork Length (Axle-To-Crown)
483mm
Trail
91mm
very high
Mechanical Trail
85mm
Wheel Flop
30.4mm
Standover Height
827mm
Tire to Pedal Spindle Distance
With 170 mm cranks
199.4mm
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
1891.4mm
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