Fantom2 Mountain Bike Rear Hub

Quick engagement. Ready when you pedal.

Fantom2 combines six simultaneously engaging pawls with a 102T ratchet for fast pick-up and quicker starts. Just over 3.5° between engagement points keeps your pedal response immediate.

Thicker ratchet teeth than the previous generation and upgraded sealing add durability for demanding rides.

Interchangeable cassette bodies come in lightweight alloy or high-strength steel suited to e-bikes. Both are available in Shimano HG, Micro Spline and SRAM XD.

SpecificationFantom2 Rear Hub
Axle spacingBoost 12 x 148mm
Spoke holes32H
Disc mount6-bolt
Ratchet102T, six pawls engaging simultaneously
Pawl contact width6.6mm
Internal axle15–17–15mm stepped design
Freehub optionsShimano HG / Shimano Micro Spline / SRAM XD
Freehub materialAlloy or steel in each driver standard
Weight318g (Boost hub with alloy SRAM XD freehub)
ColourBlack
WHERE TO BUY
Funn Fantom2 rear hubs photographed outdoors with a Micro Spline freehub in the foreground

Six pawls. 102T engagement.

Six pawls engage simultaneously with a 102-tooth ratchet. Just over 3.5° between engagement points means fast pick-up when you start pedalling.

Interchangeable Cassette Body

Shimano HG, Micro Spline or SRAM XD. Alloy for trail and enduro, steel for enduro, DH and e-MTB. One spacer and one bearing spec across all of them.

Weight-optimised flanges

Material comes off the CNC shell where it carries no load, and stays where the spokes pull. 32 holes, 6-bolt disc mount.

Tool-free end caps

CNC-grooved press-fit caps can be removed by hand for service access. Cassette removal and bearing replacement require the appropriate tools.

Quick Engagement

Quick Engagement

Six pawls engage simultaneously with a 102-tooth ratchet, helping you get moving from a standstill, restart on a technical climb or accelerate out of a corner.

Interchangeable Cassette Body

Interchangeable Cassette Body

Lightweight alloy for a lighter trail or enduro setup. High-strength steel for demanding use, including e-bikes. Choose HG, Micro Spline or XD in either material.

Built for Demanding Rides

Built for Demanding Rides

Upgraded sealing helps keep water and dirt out. CNC-grooved end caps can be removed by hand for easy service access.

Funn hubs and interchangeable cassette bodies arranged on stone and wood

FAQ

Which cassette body do I need — Shimano HG, Micro Spline or SRAM XD?

Alloy or steel freehub — which should I choose?

How does the 102T engagement feel on the trail?

What axle spacing does it use?

What does it weigh?

How do I service it?