GOLDIX Ultralight CNC Road Bike Cassette — 11/12-Speed 28T-36T Sprocket for SHIMANO HG, K7 11S/12S

Power your next ride with the GOLDIX Ultralight CNC Road Bike Cassette (Model: Sunshine) — a precision-machined freewheel built for fast, smooth shifting and featherlight performance. CNC-cut from aluminum with hard-wearing steel sprockets, this 11/12-speed cassette gives you the gear range you need for flats, climbs, and everything in between — available in 28T / 32T / 34T / 36T options. Designed to pair with SHIMANO HyperGlide (HG) systems, it’s an easy upgrade for racers, weekend warriors, and bike geeks who want crisp shifts without the weight penalty.

Why riders choose GOLDIX:

• Ultralight construction (aluminum spider + steel sprockets) for a superb strength-to-weight ratio.

• CNC precision machining for consistent tooth profiles and reliable shifting under load.

• Multiple cog ranges so you can pick an 11/12-speed setup tailored to your terrain and cadence.

• Built to fit SHIMANO HG freehub systems — great compatibility with many road groupsets.

Key Features & Benefits

• Brand / Model: GOLDIX — Sunshine (CM)

• Speeds: 11-speed and 12-speed options available

• Tooth ranges offered: 11-28T, 11-32T, 11-34T, 11-36T

• Materials: Aluminum (CNC) + steel sprockets — lightweight, durable combo

• Ultralight weight (11-speed examples):

  • 11-28T ≈ 210 g

  • 11-32T ≈ 218 g

  • 11-34T ≈ 229 g

  • 11-36T ≈ 238 g

• Compatibility: Designed for SHIMANO HyperGlide (HG) freehub bodies — check hub/derailleur limits for 12-speed fitment

• Type: Road bike cassette / freewheel replacement — CNC-finished for consistent shifting

• Ideal for: Road racers, gravel riders, commuters, and anyone wanting a lighter cassette with accurate, reliable shifts

Exact gear progressions (as supplied)

11-speed

• 11-28T: 11-12-13-14-15-17-19-21-23-25-28

• 11-32T: 11-12-13-15-17-19-21-23-25-28-32

• 11-34T: 11-13-15-17-19-21-23-25-28-31-34

• 11-36T: 11-13-15-17-19-21-23-25-28-32-36

12-speed

• 11-28T: 11-12-13-14-15-16-17-19-21-23-25-28

• 11-32T: 11-12-13-14-15-17-19-21-23-25-28-32

• 11-34T: 11-12-13-14-15-17-19-21-23-26-30-34

Fit & Installation Notes

• Fitment: Intended for Shimano HG freehub systems. Not compatible with Micro Spline or proprietary hub types without adapter — verify your hub before purchase.

• Drivetrain: Check derailleur capacity and chain length when moving to larger cassettes (e.g., 34T/36T).

• Torque & Mounting: Use a proper cassette tool and torque spec. If unsure, ask your mechanic to ensure perfect installation and indexing.

Who this is for

You if you want CNC-precision shifting, multiple gear-range options, and a lightweight cassette that won’t break the bank — ideal for riders upgrading from heavier OEM cassettes or building a performance-focused wheelset.