What brands does Jax Bicycle Center-Irvine specialize in?

The shop carries Trek, Electra, Surly, 45NRTH, Teravail, Shimano, and SRAM. Trek appears to be a primary focus, with the shop's blog featuring regular content on Trek models and technology.

Does the shop offer bike fitting or custom builds?

The website text does not provide information about fitting services, custom builds, or frame work offered at this location.

What types of repair and maintenance services are available?

The shop's website references bicycle adjustments, tune-ups, repairs, wheel building, and brake service based on category tags, though specific service details and turnaround times are not detailed in available sources.