Original V2 Salsa light mount barrel nut now manufactured in lightweight 7075 aluminum.
 
Save some weight and look super swish with one of the five anodized colour finishes whilst still being practical and mounting your taillight in a neato way.
 
This version of the barrel nut will also fit Mason Cycles seat clamps and Pro seat clamps.
 
NOTE - Please so not exceed torque specs stated by seat clamp manufacturer!