Wanted: Thin sprocket needed

Posted on
  • Evening,

    I'm just finishing off a build but missing a rear sprocket. I have an Andel 18t but it is too wide for the hub I have. It is 8mm and I need one that is 4 or 5 mm so i have enough room to put the lock ring on afterwards. I can't find any "skinny" ones on the net so hoping someone might have one. I'm ideally after a 1/8th 18/19t rear sprocket.

    On the flip side i have a high quality 18t Andel Sprocket, hardly used, for sale as well!

    Cheers

    Phil

  • The lockring goes on a different thread to the sprocket, outside the sprocket thread and threaded in the other direction. It sounds like you might have a hub designed for a freewheel, with no thread for a lockring.

  • Hi Gucci, you're right. I was going for the lockring, locktite and no hard skidding method.
    Unless someone has a decent fixed wheel set they want to swap. Got a pair of mavic open pros, dura ace hubs and black spokes.

  • If you have the rim, the hubs and the spoke, why don't you build the wheels, or pay some one to do so

  • 'cos it is a free wheel hub already built up. I'd need to get a new hub, take the old one apart, get someone to build it back together again. Was hoping to get a cheap fixed wheel and then just stick a free wheel cog on but can't find any at the mo.

  • The lockring thread is a different diameter (smaller) than the sprocket thread, so the lockring wont fit on even if you could find a thinner sprocket. And as it would be threaded in the same direction as the sprocket it wouldn't really achieve much more than locktiting the sprocket, which isn't much.

    If you want to go ahead with it, the only way I can think of is to cut part of the base of the sprocket off, and then screw both bits onto the hub individually. But that would be pretty near the same as just putting the whole hub on.

  • new hub, £40
    new spokes £8
    builder work £10

  • Hi Rik, probably right but my thinkig went
    Sprocket £10,
    Loctite

  • £7

  • replace all your teeth after the crash.... priceless

  • don't trust a suicide hub, they are call suicide for something

  • Rik is right, unless you have a proper fixed hub you need a freewheel and a brake.

  • http://www.londonfgss.com/thread20040.html
    Was keeping the brakes and seemed pretty mixed opinions on the loss of teeth and testicles.

  • then mo worries go for it, even more, what you need a BB lockring? i can give you one.
    what you need a thiner sprocker, I shuold have a 19t laying around
    base in Stoke Newington, N16
    PM for details

  • Well you can try it, but don't use locktite, use some sort of strong glue, if you can find one that works on metals. Locktite just stops stuff from vibrating loose, it'll be useless with the forces on a sprocket.

    Sprockets don't come in different thicknesses so you won't be able to get any sort of lockring on.

    Just try to never put any backwards pressure on the pedals, which is very difficult, and you should be ok. Just because you always stop with brakes it doesn't mean your legs won't slow down faster than your wheels at some point.

    I still think freewheel is the best idea.

  • loctite red is the stuff to use, it is threadlocking

  • I've got a "suicide hub" set up on a bike, fixed sprocket screwed on to a freewheel thread with a bottom bracket lockring tightened as much as possible onto that, and it actually seems fine. I've not tried to skid with it but it's never slipped at all while using my legs to brake.

  • Rik pm'd
    LonSLGSS - happy to hear you are still in one piece as i'm heading down the suicide hub route

  • Elguapo was running suicide hub (although he was unaware of it) for months with a front brake and about 3 weeks brakeless. It was prefectly fine until one day it failed catastrophically and he ended up on the deck. He ended up alright(ish) but it could have been really nasty, I wouldn't recommend running a suicide hub.

  • Post a reply
    • Bold
    • Italics
    • Link
    • Image
    • List
    • Quote
    • code
    • Preview
About

Wanted: Thin sprocket needed

Posted by Avatar for PQR @PQR

Actions