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Technical & Reference Section => Tech and Restoration => Topic started by: ATL on March 03, 2009, 07:12 PM

Title: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:12 PM

It is screwed on and has 2 small round circles opposite eachother on the face of the sprocket, how can i remove this without some wonderous device?  :LolLolLolLol:

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 07:16 PM

got a pic mate?

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:18 PM

Yeah no worries give me a few mins, i thought it might be a standard thing!

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:26 PM

Here you go! (http://www.radbmx.co.uk/archive/albums/v720/m1n1_c00p3r/286119ce.jpg)

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: snav69 on March 03, 2009, 07:29 PM

Well , Thats a first for me  :-[ never seen one like that before  :shocked:

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 07:29 PM

thats a strange looking setup? what about the other side please dude?

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:35 PM

The other side has nothing on it  :-\ its just blank moulding.

I was going to take it off my Acorn Freestyle wims as im getting some skyways.......shall i just leave it on and buy a new part?

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: RIDEEE on March 03, 2009, 07:35 PM

Looks as if, you have already removed it  :D

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:38 PM

No its still attached to the hub...

Its a DICTA screw on type, same as this: http://cgi.ebay.co.uk/New-Dicta-18T-BMX-Trails-Single-Screw-On-Freewheel_W0QQitemZ370163249166QQihZ024QQcategoryZ42328QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 07:51 PM

Ahhh that explains it! the best thing to do is take it to your LBS as they should have a tool for removal.

That freewheel should be fine as a replacement but interested to know what size chainwheel you have?

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:53 PM

The sprocket thingy is 18T and the chainwheel is 40T :)

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 07:57 PM

Might want to go with a 16t if you plan to ride it & want to get anywhere! ;)

That link to the dicta FW's on Ebay is showing the back side of the freewheel, the other side of it has the cut outs to insert the correct tool for removal :daumenhoch:

You could crush it in a vice to remove it but you risk damaging the hub body threads if your not careful mate....

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 07:59 PM

What is wrong with 18T then?

I dont have a vice :( and im selling the rims so need to keep them in good condition.

If 18T is no good shall i just leave it on you reckon? (total newbie when it comes to the techy stuff as u can tell)

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 08:06 PM

There's nothing fundamentally wrong with 18t it's just that the bigger the freewheel the more pedalling you have to put in to go faster :daumenhoch: especially as you have a comparitively small sprocket of 40t Standard gearing would be somewhere close to 44-16 for a 20" wheeled bike but it's horses for courses & if you like the way it rides, then its right :daumenhoch:

Does the existing one still function correctly?

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 08:12 PM

Yeah it works fine, just hassle to get it removed really.

How easy would it be to but it back on (or one of the same brand) onto a new hub??

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: subversion on March 03, 2009, 08:15 PM

They just screw on & tighten up as you pedal ;)

Title: Re: How to remove rear chain sprocket wheel thingy?
Post by: ATL on March 03, 2009, 08:17 PM

Ah ok then sod it il buy a new one!

Anyone know anything about putting sprockets on skyways? :( sorry for my lack of knowledge!