Shimano uses their Rhythm Step Gear Progression which gives you the best possible gear combo and ratio

Especially good for riders who like to transport their bike in the back of a car

What valves does it work on: For use on Presta valves only

lightweight package

Has a T30 Torx key

SRAM G2 Guide RSC Brake Lever Assembly - Silver netsuite-webdata-created Shimano uses their Rhythm StepComplete hydraulic lever (master cylinder) assembly without caliper. Ambidextrous design allows the same part to be used as either a right or left lever. G2 Guide RSC Brake Lever Assembly Black: DISC BRAKE LEVER ASSEMBLY ALUMINIUM LEVER (ASSEMBLED, NO HOSE, INCLUDES BARB & OLIVE) VERSION 2 BLACK GUIDE RSC MFG: #11. 5018. 046. 004 Vendor: BR46018046004 SKU: 710845809163 G2 Guide RSC Brake Lever Assembly Silver: DISC BRAKE LEVER ASSEMBLY ALUMINIUM LEVER