Sun Ringle A.D.D. Expert 
e*thirteen by The Hive TRS Plus Tire 
Description
Cane Creek Conversion Features
Allows the lower of a 47mm IS headtube to be converted to use a standard 41mm 36×45 degree headset bearing.
- Allows the lower of a 47mm IS headtube to be converted to use a standard 41mm 36×45 degree headset bearing.
