MATERIAL: 6061 alloy tube spacer and outer spacers

a 9 tooth driver and includes drive and non-drive side nylon guards

CRANKS: Chromoly 1pc 127mm

The double-butted toptube and downtube with both upper and lower gussets will stand up to the hardest riding

It's built around a tough and responsive high-tensile steel frame

Park Tool SK-4 Home Mechanic Starter Kit supplier_54527968149830 MATERIAL: 6061 alloy tube spacerA perfect way to start a bicycle tool collection! A great combination of tools to help a home mechanic clean, adjust, maintain, and do some basic repairs on their bike. The SK 4 includes more than 15 genuine Park Tool products that can perform dozens of tasks, and includes a custom Park Tool toolbox with extra room for spare parts and more tools.