DT Swiss - 180 Rear CL Boost S3-Colour-CLEAR com’s Ultimate edition kit includes

com’s Ultimate edition kit includes everything for bleeding all SRAM hydraulic brakes

and spacers

On the other hand

XLAB makes you faster – ask the Pros

DT Swiss - 180 Rear CL Boost S3-Colour-CLEAR com’s Ultimate edition kit includesDT SWISS 180 REAR CL BOOST STRAIGHTPULL Lighter, stiffer, more precise and easier to maintain the strengths of the 180 hub are further enhanced with the new RATCHET EXP technology. The ultra reliable freehub system transfers the highest pedaling loads resulting in direct power transmission. Smooth running SINC Ceramic bearings bring the decisive advantage with their extremely low rolling resistance. DT Swiss 180 hubs the ultimate in lightweight,