E*Thirteen

Helix R Guidering

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.

• convenient flip-flop design, compatible with both Boost and SuperBoost chainlines (52/55mm)
• Cross-Compatible with SRAM and Shimano 11 and 12 speed chains
• e*thirteen's Gen 4 narrow-wide tooth profile delivers upgraded chain retention, lower system noise, and increased wear-life
• 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
• Pair seamlessly with Helix and Helix R cranks, or with legacy TRS/LG1/XCX cranks using included 1mm spacer ring
• Tough enough for any MTB discipline