Karate Monkey Frame
“Dear Pete, I thought 29ers had jumped the shark. Isn’t 650b the new 29? But then I rode one-a these Karate Monkeys, and I gotta tell ya, that thing shifted my whole paradigm. It sticks to singletrack like peanut butter to a dog’s mouth. The rear wheel is tucked in and the thing rips when the going gets twisty. The big wheels smooth out uneven terrain. And Surly built it as sensible as bikes come, the frame from steel, with components that work like they’re supposed to without a lot of fussin’ and fightin’. Hell I could switch from disc to rim brakes if I wanted to.
I got the complete bike, but I’m thinking of getting another Karate Monkey frame and fork so I can have another set up with gears and a suspension fork.
Quit your job. Kill your T.V. Get a Karate Monkey.
Say hi to Martha,
Tilsdale”
Colors: Chum Bucket Red, Pitch Black
Geometry
| Switch to mm | small | medium | large | x-large | |
|---|---|---|---|---|---|
| Seat Tube Length (Center-Top) |
16.0 | 18.0 | 20.0 | 22.0 | |
| Top Tube Length (Center-Center) |
21.7 | 22.6 | 23.4 | 24.2 | |
| Effective Top Tube Length (Center-Center) |
22.7 | 23.6 | 24.3 | 24.9 | |
| Head Tube Angle | 71.0 | 71.5 | 72.0 | 72.0 | |
| Seat Tube Angle | 73.0 | 73.0 | 73.0 | 73.0 | |
| BB Drop | 2.7 | 2.7 | 2.7 | 2.7 | |
| Chainstay Length | 17.0 | 17.0 | 17.0 | 17.0 | |
| Wheelbase | 41.1 | 41.9 | 42.4 | 43.0 | |
| Seat Tube Angle | 73.0 | 73.0 | 73.0 | 73.0 | |
| Front-Center | 24.5 | 25.3 | 25.7 | 26.4 | |
| Standover Height | 30.8 | 31.9 | 33.0 | 34.1 | |
| Head Tube Length | 3.1 | 3.5 | 3.7 | 4.1 | |
| Frame Weight | 5.16 | 5.34 | 5.56 | 5.69 |
Standover height is based on a 29 x 2.1” tire that measured 737mm in diameter
| Switch to inches | small | medium | large | x-large | |
|---|---|---|---|---|---|
| Seat Tube Length (Center-Top) |
406.4 | 457.2 | 508.0 | 558.8 | |
| Top Tube Length (Center-Center) |
552.0 | 574.5 | 594.5 | 614.3 | |
| Effective Top Tube Length (Center-Center) |
576.6 | 600.6 | 617.5 | 633.6 | |
| Head Tube Angle | 71.0 | 71.5 | 72.0 | 72.0 | |
| Seat Tube Angle | 73.0 | 73.0 | 73.0 | 73.0 | |
| BB Drop | 68.0 | 68.0 | 68.0 | 68.0 | |
| Chainstay Length | 431.0 | 431.0 | 431.0 | 431.0 | |
| Wheelbase | 1044.9 | 1064.0 | 1076.1 | 1092.1 | |
| Front-Center | 623.0 | 642.0 | 654.0 | 670.0 | |
| Standover Height | 781.6 | 811.1 | 838.2 | 866.8 | |
| Head Tube Length | 80.0 | 90.0 | 95.0 | 105.0 | |
| Frame Weight | 5.16 | 5.34 | 5.56 | 5.69 |
Standover height is based on a 29 x 2.1” tire that measured 737mm in diameter
Frame Highlights
| Tubing | 100% Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded |
|---|---|
| Rear dropouts | Surly horizontal dropouts with derailleur hanger, 135mm spaced |
| Brake compatibility | Most International Standard disc or cantilever rim-type |
| Braze-ons | Cantilever bosses with removable pivots, dual water bottle mounts, downtube shift cable routing, guides for hydraulic hose or solid housing on the seatstay, standard cable housing stops on the top tube |
| Seatpost diameter | 27.2mm |
| Seatpost clamp diameter | 30mm, Surly Constrictor included |
| Headset | 1-1/8" threadless |
| Front derailleur clamp diameter | 28.6mm |
| Bottom bracket shell | 73mm wide, 1.37 x 24t |
| Chainring clearance | 48t max |
| Fork | Suspension-corrected (80mm), tapered straight blade, 4130 CroMoly. International Standard disc mount and removable canti pivots |
| Weight | 20" frame = 2500 g (5.5lbs) Fork - uncut = 1180g (2.6 lbs) |
