E*thirteen Helix R Guidering(52/55 Flip Flop) 32t Intergal MFPN=100-2323-008 dual chamber air spring with

dual chamber air spring with self-regulating negative pressure

}Maxxis Minion DHR II Tire - 29 x 2

0 bead folding type tubeless color black/tanwall weight 600g

MegNeg air can is not compatible with MY21 Super Deluxe Ultimate ThruShaft

} CNC machined 7075/T6 aluminum with thick and thin tooth design for maximum chain engagement

E*thirteen Helix R Guidering(52/55 Flip Flop) 32t Intergal MFPN=100-2323-008 dual chamber air spring withE*thirteen QuickConnect Direct Mount rings include 1mm spacers, which allows them to be run on legacy cranks (TRS LG1 XCX), as well as Helix and Helix R cranks 3 bolt direct mount chainrings fit SRAM and other similar interface cranks Tooth profile is compatible with both Shimano and SRAM chains in both 11 and 12 speed Can be flipped to provide either a 52 or 55mm chainline Model Helix R Ring Type Single (Anti Chain Drop) Mount QuickConnect