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e*thirteen Helix R Guidering - 32t, 11/12-Speed, 52/55mm Flip Flop CL, 3/5mm Offset, e*thirteen DM, Intergalactic

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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 chains
Convenient flip-flop design, compatible with both Boost and SuperBoost chainlines (52/55mm)
Pair seamlessly with Helix and Helix R cranks, or with legacy TRS/LG1/XCX cranks using included 1mm spacer ring
e*thirteen's Quick Connect direct mount interface keeps the system secure and creak-free
Forged from 7075-T7 aluminum, then extensively CNC optimized for light weight, and technical aesthetics
Tough enough for any MTB discipline