Surly Karate Monkey Frameset - 27.5" Steel Hi-Viz Black X-Small Product Type_Crank Spider The Melvin uses two pulleys

The Melvin uses two pulleys just like a rear derailleur which gives it 20 teeth of chain wrap

Premium grade spoke nipples available in brass or alloy with multiple color options

}All-City 13T x 1/8" Track Cog Black

}DT Swiss XD End Caps for 135mm x 12mm Thru Axle hubs: fits 240 350 440

Surly Karate Monkey Frameset - 27.5" Steel Hi-Viz Black X-Small Product Type_Crank Spider The Melvin uses two pulleysSurly Karate Monkey Frameset 27. 5" Steel Hi Viz Black X Small. The Karate Monkey features updated progressive trail geometry our custom trumpet tubeset and Surlys Gnot Boost rear dropout system. Available in a variety of colors with multiple drivetrain and wheel size configurations. 100% Surly Chromoly steel frame and fork; double butted main triangle and 44mm headtube The tubeset uses the same trumpet tubes found on Instigator 2. 0 frame Adjustable