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Technical & Reference Section => Tech and Restoration => Topic started by: Threaders on July 29, 2011, 12:18 PM

Title: What no of teeth do I need on my freewheel?
Post by: Threaders on July 29, 2011, 12:18 PM: Hi people,
Just need some acvice on getting a freewheel. I will be using new tuffs on a 1990 gt mach one build and have a sugino 45 tooth chainring with tioga spider.
(http://www.radbmx.co.uk/archive/albums/yy272/Threadwell20/sugino45t.jpg)
seen suntour freewheels on the bay which have 16t 17t and 18t. Which one do you guys reckon I need.
Ta very much :daumenhoch:
Title: Re: What no of teeth do I need on my freewheel?
Post by: brettypeeps on July 29, 2011, 12:21 PM: 16 teeth is what i use with a 44 or 45 chainring :daumenhoch:
Title: Re: What no of teeth do I need on my freewheel?
Post by: Jaymz on July 29, 2011, 12:24 PM: 16 for me too, although if you're going to rie it distance a 15 will give you a better top speed
Title: Re: What no of teeth do I need on my freewheel?
Post by: brettypeeps on July 29, 2011, 12:26 PM: Quote from: Jaymz on July 29, 2011, 12:24 PM
16 for me too, although if you're going to rie it distance a 15 will give you a better top speed

You will stuggle getting a 15T to fit new tuffs... Works with any brand 16 tooth or larger freewheels. Also works with AC brand 15 tooth freewheels.

http://www.planetbmx.com/shop/skyway-tuff-wheels/20-wheels/20-blue-skyway-tuff-2-wheel-set/prod_2.html (http://www.planetbmx.com/shop/skyway-tuff-wheels/20-wheels/20-blue-skyway-tuff-2-wheel-set/prod_2.html)
Title: Re: What no of teeth do I need on my freewheel?
Post by: Threaders on July 29, 2011, 12:33 PM: I can only see ACS, Dicta or shimano's in 16t (although there are some cheapy ones as well) If its going to be ACS, how will I know which size to get?
Thanks, guys :)
Title: Re: What no of teeth do I need on my freewheel?
Post by: brettypeeps on July 29, 2011, 01:10 PM: (http://i.ebayimg.com/08/!CFhO(c!BGk~$(KGrHqR,!k4E1F)VjVcoBNV(lqMPc!~~_12.JPG)

Compare left and right hand side of rear hub :daumenhoch:

There is quite a size difference so should be quite obvious but if you are going for a 16 teeth you wont go far wrong. :4_17_5:

Tuffs have the larger size
Title: Re: What no of teeth do I need on my freewheel?
Post by: Threaders on July 29, 2011, 01:31 PM: Hub only has a thread on one side and looks to be the smaller version. I normaly get stuff on here or the bay as my local bike shop only do cheapo parts.
(http://www.radbmx.co.uk/archive/albums/yy272/Threadwell20/100_1086.jpg)
(http://www.radbmx.co.uk/archive/albums/yy272/Threadwell20/100_1087.jpg)
Glad I asked the question before just going ahead and buying one. Ive already had a nightmare getting a 28tpi bb for this build (1mancity2 helped me out on that) how about the suntour 17t freewheel??
Cheers, Jonathan :daumenhoch:
Title: Re: What no of teeth do I need on my freewheel?
Post by: brettypeeps on July 29, 2011, 01:48 PM: It is definately the larger on. if it was my money I would go for one of these and stick to a 16 teeth or else you will be pedalling quite fast.

http://www.ebay.co.uk/itm/DICTA-Freewheel-BMX-Sprocket-16t-BRAND-NEW-CHROME-/140473924873?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item20b4e5fd09 (http://www.ebay.co.uk/itm/DICTA-Freewheel-BMX-Sprocket-16t-BRAND-NEW-CHROME-/140473924873?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item20b4e5fd09) Cheap
http://www.ebay.co.uk/itm/Shimano-MX30-Single-Speed-Freewheel-Sprocket-BMX-16-T-/260820447223?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item3cba1c2ff7 (http://www.ebay.co.uk/itm/Shimano-MX30-Single-Speed-Freewheel-Sprocket-BMX-16-T-/260820447223?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item3cba1c2ff7) Not so Cheap but pretty.

Both of them will fit your tuffs :daumenhoch:
Title: Re: What no of teeth do I need on my freewheel?
Post by: Threaders on July 29, 2011, 01:58 PM: Cheers brettypeeps. Just seen a second hand shimano mx30 for 15 quid, so might get that.
Thanks for your help and advice :daumenhoch:
Title: Re: What no of teeth do I need on my freewheel?
Post by: brettypeeps on July 29, 2011, 02:04 PM: Quote from: Threaders on July 29, 2011, 01:58 PM
Cheers brettypeeps. Just seen a second hand shimano mx30 for 15 quid, so might get that.
Thanks for your help and advice :daumenhoch:
:daumenhoch: