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Robert Axle Project Drive Thru Dummy Hub - 1.5mm. The Drive Thru is a dummy hub or chain keeper that replaces your wheel while cleaning the chain. It is fast and an effective way to clean your chain in between races or in your garage. It allows you to fully rotate your cranks and shift through your complete range of gears while protecting the frame. Installs simply with one hand and is quick and easy to change between bikes. The Drive Thru is also great or packing the bike for transport.Knurled axle stud head is easy to finger tighten with cold/greasy/oily hands
12 mm diameter
Lead-in threads designed for quick insertion into the frame
No tools required simple one hand installation