Ships within 48 hours · Estimated delivery Oct 31 - Nov 5
e*thirteen Helix R 107 BCD 4 Bolt Chainring 42t 11 12 Speed 107BCD Black MFPN=A1007 Volume spacers with smaller increments J212376 Volume spacers with smaller increments and MCU bottom out bumper Ratchet tool 30 Nm max torque The e*thirteen Helix Race 107 BCD Chainring designed for 4 bolt 107 BCD cranks like SRAM Red or Force including power meter equipped cranks offers a performance upgrade for Gravel and Road cyclists The 38 40 and 42 tooth rings pair perfectly with e*thirteen’s cassettes for more overall range and higher top speeds
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