Alfa 3R

REFERENCE 712

A complete drivetrain starting point, with the dimensions and component options to shape your build. Explore the specification and assembly details below.

Chainring Material: Steel
Weight: 927 g
Teeth: 22/32/42T . 22/32/44T · 28/36/48T . 28/38/48T
Length (mm): 170 · BCD (mm) · 104

Weight is for the catalogue configuration. See measurement notes below.

Every specification.
Considered.

Technical data from the 2026 Miranda catalogue. Measurement conditions and available configurations are shown with the original drawing.

Alfa 3R specifications
Chainring Material	Steel
Length (mm)	170 · BCD (mm) · 104
Weight (g)	927
Teeth	22/32/42T . 22/32/44T · 28/36/48T . 28/38/48T

with 22/32/42T Chainring

Made to fit.

Choose dimensions as part of a complete assembly. Final compatibility depends on the frame, drivetrain and selected components.

The technical sheet brings together the available geometry, assembly details and reference options for Alfa 3R. For a specific build, our team can help confirm the right configuration.

View configuration drawing