E*thirteen Helix R Guidering (52/55 Flip Flop) 32t - Gray MFPN=141-33147-K001 }Brooks B67 Saddle - Steel

}Brooks B67 Saddle - Steel Black Women's

}Lizard Skins Monitor Traverse Gloves - Jet Black Full Finger X-Large

}Park Tool BBB-4 Big Blue Book of Bike Repair 4th Edition

}CeramicSpeed OSPW Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS - Alloy Pulley Carbon Cage Black

} Makes installing and removing quick links a snap

E*thirteen Helix R Guidering (52/55 Flip Flop) 32t - Gray MFPN=141-33147-K001 }Brooks B67 Saddle - Steele*thirteen Helix R Guidering 32t 11 12 Speed 52 55mm Flip Flop CL 3 5mm Offset e*thirteen DM Gray. Helix R Direct Mount rings are designed to function equally well with all 11 and 12 speed SRAM and Shimano drivetrain systems on e*thirteen Helix or legacy TRS LG1 XCX cranks. e*thirteen's Gen 4 narrow wide tooth profile delivers upgraded chain retention lower system noise and increased wear life Cross Compatible with SRAM and Shimano 11 and 12 speed