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10-51T wide range 12-speed gear combination
Steel Cassette Weight 500g Cog Details 11-13-15-18-21-24-28-34-40 Cog Material Steel Finish Black Range 11-40T Speed 9
Rear Derailleur Barrel Adjuster Kit Apex XPLR / Apex Eagle
Symmetric shifting geometry allows fast
Lockring & Spacers
Ultegra BR-R8170 Wheels 10-51T wide range 12-speed gearHLC. Web. Services. CmsService. Models. Pages. CmsPageProductDetails The new ULTEGRA BR R8170 hydraulic disc brake caliper has a refined brake caliper design, delivering a quieter brake system. The new brake calipers boast a 10% increase in pad to rotor clearance to reduce noise while a separate bleed port and valve screw improve the bleeding process so that its now possible to bleed the system without removing the caliper from the frame. More fine