e*thirteen Helix Race e*spec Chainring 36T Bosch Gen4 Direct Mount 13mm Offset Shimano/SRAM 11/12s Compatible BLK MFPN=RF740-GKX1-P-D2 including the Park Tool TAP-7

including the Park Tool TAP-7

The Crossbar Substitute works as a top tube for easier rack mounting for use with “hang-on” type car racks and unconventional frames

78mm from minimum insertion to top of quill Stem Angle (deg) -18 Length 100 Bar Clamp Diameter (mm) 26

Axle Type 15mm TA Hub Model I9 Hydra 2 Hub Spacing 110mm Boost Position Front Rim Color Black Rim Construction Double wall Rim Drilling 32 Rim External Width 38mm Rim Internal Width 30mm Rim Material Aluminum Rim Model Grade S Skewers Included No Spoke Type Stainless Valve Presta Wheel-Brake Comp

7 Flange No Lock On Yes Shape Round Color Stealth Weight 120 Defined Color Black Size Slim

e*thirteen Helix Race e*spec Chainring 36T Bosch Gen4 Direct Mount 13mm Offset Shimano/SRAM 11/12s Compatible BLK MFPN=RF740-GKX1-P-D2 including the Park Tool TAP-7Helix Core e*spec Direct Mount Chainrings feature a narrow wide tooth profile for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold formed from steel and then heat treated to provide excellent durability and toughness all at a price that's easy on your wallet.