Chain adjustment blocks mismatched???


6 replies to this topic
  • djtroy

Posted March 26, 2007 - 06:39 PM

#1

I was going over my bike and I noticed the inside of the sprocket was getting worn down badly. I thought I had the axle on crooked so I counted the marks on the blacks. They were the same number of marks from the front, but I took a closer look and noticed there were more marks on one than the other. Are these suposed to be different and is my axle crooked? I am 4.5 marks from the front on each side. The sproket wear on the inside of the sprocket tells me I have a problem.

  • grayracer513

Posted March 26, 2007 - 06:43 PM

#2

http://www.thumperta...866#post3551866

  • 642MX

Posted March 26, 2007 - 06:47 PM

#3

Read them from the rear forward.

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  • tonypitcock79

Posted March 26, 2007 - 07:07 PM

#4

i never go by marks tape measures or widgets just simply put the sprockets directly in the middle of the chain when rolling the wheel done....

  • AlkalineOne

Posted March 26, 2007 - 07:40 PM

#5

i never go by marks tape measures or widgets just simply put the sprockets directly in the middle of the chain when rolling the wheel done....


yea thats what i do. i just look at the space between the sprocket and the chain on both sides, make sure i have the same gap.

you can also simply look through the chain as it releases from the sprocket, and see which direction it goes.

these are only fast and simple ways that i do it. they are by no means exact measurments, but i think they are close enough to not do any serious damage to the sprocket or frame.

  • Racer24

Posted March 26, 2007 - 08:06 PM

#6

its b/c the side with the sprocket consits of a shoulder on the block. the numbers gnt go past the shoulder...the shoulder is there to maintain strength.. b/c of the force on the sprocket side....

  • BC3

Posted March 27, 2007 - 07:46 AM

#7

Eye ball the chain for being straight and spaced the same on both sides of the rear sprocket as mentioned...then look at your marks on the blocks....Being straight in line with the counter sprocket doesn't lie....





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