Technical & Reference Section > Tech and Restoration

Bit of a tight spot (in chain)

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sweetbeats:
Cheers Gremlin Ill have a tweek later on see if I can sort it :daumenhoch:

moley:
Dont remove the chainring/spider bolt.  Just fully loosen it!!

Then spin the cranks.  if its now loose (or the same) all the way around then tightening the bolt must be warping the Spider.

Are you using a top hat washer?

The top lip of the top hat washer has effectively moved your crank arm that distance from the spider.

Therefore you need a washer the same width between your crank arm and spider!!

Order - Chainring bolt   -    Spider -     Washer  -  Crankarm Chainring bolt hole.

You can check whether you need a washer with the crankset off your bike by placing your crank arm, top hat, spider on the spindle.   Push it all together with your hand. If the spider isn't flush to the crank arm chainring bolt area then you need a washer to fill the gap because tightening it will only move the spider out of alignment!!  :daumenhoch:


If this isn't your problem then follow Gremlin's advice for the Chainring as that is the most common place to cause alignment problems!!

GREMLIN:
I've just had a proper look at your pic  ::)

What type of Redlines are they ? Single/twin pinch, model etc...

 :daumenhoch:  G.

sweetbeats:

--- Quote from: Gremlin on October 30, 2008, 03:54 PM ---I've just had a proper look at your pic  ::)

What type of Redlines are they ? Single/twin pinch, model etc...

 :daumenhoch:  G.

--- End quote ---

Unsure of model single pinch 180's though

oldschool rider:
IF none of the above works try this :

Items needed : Vice, Rags, Sledgehammer, Cold drink (Beers always good), Loud music, Pc with Internet connection.

Step 1 : Carefully wrap chainring & spider in rags.

Step 2 : Place carefully wrapped chainring & spider in vice and slowly tighten up.

Step 3 : Turn on loud music (Metalica's a good choice).

Step 4 : Open your beer and down it in one.

Step 5 : Start gentley tapping the chainring with sledgehammer in time to the music.






IF THAT DOESN'T WORK TRY STEP 6 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!























Step 6 : Go to your Pc and look up those lovely people at the RADBMX.COM shop and see if they have a new straight one instock.  :2funny: :daumenhoch: :2funny:

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