Serfas USB Rechargable Light Set Color:Black Derailleur Capacity: 14

Derailleur Capacity: 14

Fits most metric taps from M1

Cups are forged and CNC machined from aerospace 6066 aluminum

For years the accepted method to check the alignment of the rear drop-out was to run a string on either side

Serfas USB Rechargable Light Set Color:Black Derailleur Capacity: 14Serfas USB Rechargeable Light Set This combo includes the Serfas USB Silicone Headlight (USL SBK) and Serfas USB Silicone Taillight (UTL SBK). Both these lights have integrated mounts for ease of use. HEADLIGHT FEATURES: Model: USL SBK USB rechargeable Three modes: High (10 lumens 3 hours), Low (5 lumens 6 hours), Flash (8 hours) Integrated easy on mount Charge indicator light TAILLIGHT FEATURES: Model: UTL SBK USB rechargeable Two modes: Solid (10