Ti Parts Workshop Titanium Cog

Custom made by Brompton parts specialist - Ti Parts Workshop Hong Kong.
https://www.facebook.com/tipartsworkshop/

Titanium cog is harder than steel or alloy cog, but also provide you the best smoothness and very durable.

Description
• 17T Only
• 1.37" X 24 TPI
• 1/8"
• 38g
• Made by 6AL4V Titanium