Halo Fix-G Rear Track Hub

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An ever present headache with "normal fixed hubs" is the assembly of a drive cog that is attached by a thread being pulled in both directions by the pedal torque. Of course, the traditional solution to avoiding the cog unwinding itself from the hub in the reverse direction is a left hand threaded lockring, butted up tight against the cog. But as many riders have found out, this historic system can be relatively volatile.

Halo thought. . . There has to be a better way: A splined hub body (with cogs that slide on) and an independent lockring. . . That never has to handle rotational forces from the drive.

The Halo Fix-G hub features a fixed HG spline machined as part of the alloy main hub body*, with a conventional internal thread for a standard HG type lockring (with easy tool fittings) and options on left hand side for conventional fixed or freewheel threads.

*Note: Must ONLY ever be used with "7mm base Wide Foot" cogs (to avoid the cog biting into the alloy splines on the hub) such as:
- Halo "Fat Foot" 1/8 cogs
- Gusset "Double Six" 5/64 cogs
- Regular width HG cogs should never be used

Halo Fix-G Advantages:
- Easy and secure fixing and servicing
- Adjustable chainline
- Twin cog options (can run 2 cogs together)
- Accepts from 12T+ cogs (for compact gearing)
- No need for chainwhip tools

Tech Features:
- Hi-polish custom CNC machined hub shell
- HG type fixed spline
- Japanese sealed bearings
- Hollow M10 Cr-Mo axle
- 120 mm spacing
- 22 mm "Large Cone-Faces" to avoid damage to frame
- Supplied with cog spacers and alloy locking
- Laser logo
- 32H, 36H or 48H
- HG Fixed / Fixed or HG Fixed / Freewheel Types

Important Note: Threads for "Fixed Cog Lockrings"
- Hubs must only be used with ISO standard 1.29" x 24 TPi L/H fixed cogs lockrings
- Do NOT USE French (1.32" x 24 TPi) or Italian (33 x 1 mm) standard lockrings
- The larger diameter French and Italian lockrings may appear to work, but, will strip the threads from the ISO hub
Product Reviews (1)
Questions & Answers (2) Q & A
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Product Reviews (1)
Overall Product Rating 5 / 5
I love these hubs
By dugitup
14 Oct 2022
5 / 5
I recommend this product
Consoccasional surface rust on track nuts if you ride in winter on salty roads
Prosgreat design, great engineering, see review
Great design by Halo. I've built a good number of these into bomb-proof wheels and haven't had any issues. The splined interface makes it easy to perfect the chainline, and there's no stupid reverse-thread lockring or chain whip to mess with. Easy to open the dust cap and refresh the bearing lube. Couldn't recommend more highly. Just bought two to build into belt drive fixed gear bikes.
Questions & Answers (2)
Is there an option for 130mm OLD?
25 Jan 2022
Is there an option to install a longer axle to convert this hub to 130mm OLD? I note this option exists in the Halo TK hub but not sure if there is an option for the Fix-G hub?
Thank you for your enquiry, yes it can be converted please see SJS Cycles item 22589

WD 25/01/22
Are Lockring And Spacers Included?
06 Jan 2015

There should be 3 spacers and the lockring for the splined side included. If you go for one of the hubs with the threading to take a normal fixed sprocket on the opposite side, the lockring for that will need to be purchased separately.