Park Tool TNS-4 Deluxe Threadless Nut Setter Giant-Imported Front Derailleur: Shimano 105 Di2

Front Derailleur: Shimano 105 Di2 FD-R7150

Fits: '07-'13 Red*

It gives you “free” power regardless the conditions- read more below

It's compatible with SRAM Wide DUB inner bearings

Model Name: Scalpel HT LAB71

Park Tool TNS-4 Deluxe Threadless Nut Setter Giant-Imported Front Derailleur: Shimano 105 Di2The TNS 4 makes it quick and easy to install star fangled nuts used with 1" and 1 1 8" threadless headset systems. Using a durable steel driver and built in guide, the TNS 4 perfectly aligns the star fangled nut and sets it to the proper depth every time. The unique design virtually eliminates pinched fingers. Specifications Compatible with 1" and 1 1 8" headset systems that use a standard M6 threaded star fangled nut Replaceable set screw part #822