Machined 7075-T651 chainring pairs for 110 BCD ×4 cranks — in a closed aero profile or a hollowed lightweight cut.
Two philosophies, one alloy. The Aero rings run a closed face for airflow; the Hollow rings carve away everything that does not carry load. Both come as matched 2x pairs in 50/34 or 52/36, in the hardest commonly used aluminium there is.
The numbers
Material: 7075-T651 alloy
BCD: 110 ×4
Pairs: 50/34 or 52/36
Styles: Aero (closed) / Hollow (lightweight)
Before you order
Confirm your crank's bolt pattern with us — 110 BCD ×4 only. Special order; we confirm the lead time in writing before taking payment.
