1707.2 Work Tray Collar Ultegra Di2 XX-TSS = tubeless straight-side rims

XX-TSS = tubeless straight-side rims [hookless]):

BR-R8170 disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial braking point

Quick and intuitive rear shifting operation

And it’s also the biggest contributor to the ultra-smooth

Mounting kit included

1707.2 Work Tray Collar Ultegra Di2 XX-TSS = tubeless straight-side rimsThe 1707. 2 installs onto the upright tube of select Park Tool race stands and portable repair stands to accommodate the #106 Work Tray or PTH 1 Paper Towel Holder. The 1707. 2 easily adapts the #106 Work Tray to fit the 41mm upright tube on 2011 and older PRS 20 and PRS 21 Repair Stands, as well as 1996 and newer PCS 1, PCS 4, PCS 4 1 and PCS 4 2 Repair Stands Compatibility: PCS 1 (post 06 1996) PCS 4 PCS 4 1 and PCS 4 2 (lower upright) PRS 20 and