What is this hub? Fix or replace?

[The Road Crew]

Had shimano for years so this is alien... Says sunrace on it.

I've removed the gears (7) by removing the locking, the gears came off separately (not fixed together in a block) this thing on the hub says sunrace freewheel on it...

1. Should it have 2-3mm of vertical play in it?
2. How do you get it off?
3. What would you replace it with? Need new rear sprockets as well as they are very worn and chain slips and gear change is awful
4. Would you just buy a new wheel (700c on a city bike) with a shimano hub/cassette setup instead?

Edited by The Road Crew on Thursday 1st September 18:54

[tertius]

Looking at those spokes … option 4.

[The Road Crew]

tertius said:

Looking at those spokes … option 4.

Just needs a clean! It's only a commuter bike to fair (not mine)

[tertius]

The Road Crew said:

tertius said:

Looking at those spokes … option 4.

Just needs a clean! It's only a commuter bike to fair (not mine)

True and I was slightly tongue in cheek but by the time you’ve replaced the freehub, probably the wheel bearings … pretty sure you’ll be better off with a new cheap Shimano wheel.

[TGCOTF-dewey]

Free Frisbee though!

[wpa1975]

This is hard to explain but you have taken it apart wrong, a freewheel unscrews completely from the hub.

You have taken the sprockets off and left the middle still fitted.

The 2 pin holes in the end will need a tool to undo but it will then unscrew.

https://www.sjscycles.co.uk/freewheels/ventura-7-s...

Edited by wpa1975 on Thursday 1st September 20:38

[The Road Crew]

Ahhh! Now that makes sense why I couldn't find anything that looked like it!

Left hand thread for the pin holes you think?

[magpie215]

The Road Crew said:

Ahhh! Now that makes sense why I couldn't find anything that looked like it!

Left hand thread for the pin holes you think?

It'll undo in the direction that it freewheels

[dontlookdown]

Yup, it's an old freewheel. Precursor to the freehub of today, the whole lot comes off the wheel.

Prepare for the lock ring to be very tight, indeed. Even with the right tool, the two pin holes are easily damaged.

[The Road Crew]

New wheel ordered today, with a new chain and 7 speed shimano hg cassette. Not many 7 spped wheels about so I've gone for a 8/9 speed hub and I'll use a spacer to take up the slack.

I didn't think the bike was that old, worked it out properly today... It was actually bought 10 years ago! Where the hell that time went I've no idea. I thought it was bought about 5 years ago!