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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Chainring Problem.
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Author Topic: Chainring Problem.  (Read 743 times)

0 Members and 1 Guest are viewing this topic.

ligbee

  • Guest
Chainring Problem.
« on: April 14, 2008, 08:22 PM »
Bought a couple of chainrings (Sugino/SR style) to which I was going to fit a standard Spider. When I tried to bolt the spider onto either of them, it seems that the spider is too small, is there two sizes of spider or is it a power disk fitting only.

Don't remember this problem back in the day.

ligbee.

crusty

  • Guest
Re: Chainring Problem.
« Reply #1 on: April 14, 2008, 08:32 PM »
how much to small/big?
are you putting all 5 of the bolts in loose before you tighten any up there are a lot more knowledgable people on here that can help but this is all i can think of for now

ligbee

  • Guest
Re: Chainring Problem.
« Reply #2 on: April 14, 2008, 08:34 PM »
You cannot as the pcd of the spider is too small, the radius of the holes could do with being about another 10 mm.

ligbee.

Offline pickle

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Re: Chainring Problem.
« Reply #3 on: April 14, 2008, 08:35 PM »
i could be wrong but it sounds like you've got a Sugino spider and Takagi chainring?  the Sugino spiders are smaller, thus there rings are bigger and the oposite for Takagi.

hope that makes sense?

ligbee

  • Guest
Re: Chainring Problem.
« Reply #4 on: April 14, 2008, 08:37 PM »
That sounds about right.

I'll have to find out which one is which as both chainrings and spiders are copies.

Cheers

ligbee

Offline pickle

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Re: Chainring Problem.
« Reply #5 on: April 14, 2008, 08:39 PM »
yeah i did exactly the same mate, i had a sugino spider and then bought a Takagi chainring, you need a Sugino chainring mate  :daumenhoch:

ligbee

  • Guest
Re: Chainring Problem.
« Reply #6 on: April 14, 2008, 08:40 PM »
Cheers for that.

Thats why this site rules.


ligbee.

mark 2

  • Guest
Re: Chainring Problem.
« Reply #7 on: April 14, 2008, 08:43 PM »
Well it sounds as if you got a 130mm bolt circle diameter chainring, something like a takagi, shimano or tioga (same thing) and a Sugino pattern spider which has a bcd of 110mm. You'll need either a Sugino, Suntour or Tuf Neck chainring to fit or get a powderdisc with the dual holes


Here's a 130mm



And these are 110mm



Hope that helps :daumenhoch:



***pickle answered while I was typing so it looks like I 've just copied him :LolLolLolLol:
« Last Edit: April 14, 2008, 08:45 PM by mark j. »

crusty

  • Guest
Re: Chainring Problem.
« Reply #8 on: April 14, 2008, 08:44 PM »
i told you there be some smart people on 'ere

ligbee

  • Guest
Re: Chainring Problem.
« Reply #9 on: April 14, 2008, 08:47 PM »
And just a click away as well.

Proper threw me out as I've never come across this before, just been lucky I suppose.

ligbee.

mark 2

  • Guest
Re: Chainring Problem.
« Reply #10 on: April 14, 2008, 08:48 PM »
i told you there be some smart people on 'ere

Too much time on their hands more like :LolLolLolLol:

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Chainring Problem.
 

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