Finally a quill adapter made of chromoly! Don't be fooled by other similar adapters for sale on the Internet - they don't mention the material their adapters are made out of for a reason.
Use this adapter on an old school BMX bicycle (or other bicycle that takes a 21.1mm quill stem) and then run a newer style 1 1/8" threadless stem.
Material: 4130 chromoly
Size (quill diameter): 21.1mm
Length (overall): 170mm
Rise (Minimum insertion line to top of stem when mounted): 90mm
To be used with 1 1/8" threadless stems.
Has a hollow Potts Mod bolt to allow for the front brake cable to be routed through the fork steer tube.
Brand new, never mounted.
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All prices are in USD.