e*thirteen Helix Race 107 BCD Chainring - Grey Size:42t 1 mm-thick protection silica coating

1 mm-thick protection silica coating applied to the casing to extend the lifetime by preventing the tire casing to absorb humidity and mud

The newly upgraded full-colour OLED display gives you real-time insights into mode

Compression fit

The new all-weather Diversion kit

2021 TCR Advanced Pro 1 Disc

e*thirteen Helix Race 107 BCD Chainring - Grey Size:42t 1 mm-thick protection silica coatingThe Helix Race 107 BCD Chainring is a high value quality upgrade for Gravel and Road Cyclists using 4 bolt 107 BCD cranks such as SRAM XPLR or Power Meter Cranks like Quarq Force or Rival. Take full advantage of e*thirteens widest range cassettes by dropping 2 teeth or more in chainring size with our smaller 38, 40, and 42T sizes. A combo that supports steeper climbs and faster descents. Helix Race 107 BCD rings are forged from long wearing 7075 alloy