E*thirteen Helix R Guidering (52/55 Flip Flop) 32t - Bronze Model=BBT PressFit Vendor Sturmey archer Manufacture Number

Vendor Sturmey archer Manufacture Number HSJ978

Slim low-profile design

7/8-speed triple front derailleur

K1 Wide (formerly Z-710): specially shaped

E*thirteen Helix R Guidering (52/55 Flip Flop) 32t - Bronze Model=BBT PressFit Vendor Sturmey archer Manufacture NumberE*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