Technical & Reference Section > Tech and Restoration

chain lignment problem

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motomagII:
is there such thing to fit on rear wheel before the freewheel to space it oujt a bit i cant get my chain alligned correctly andf the cranks are at max i can change em /

HEYWOOD BMX:
 :) Yes.Try the Hope bottom bracket spacers (1mm) from CRC,same dims as Shimano/freewheel hubs.Can be awkward as EX-type BBs are designed to be used with cassette hubs & MTB cranks have a different chainline to BMXs.

http://www.chainreactioncycles.com/Models.aspx'modelID=36416

motomagII:
to be honest james its very very close .im about 1mm out maybe 1.5 from being happy with it even though it is rideable as is id like to get it tiny bit nearer centre of chain on ring

HEYWOOD BMX:

--- Quote from: motomagII on February 24, 2011, 08:55 PM ---to be honest james its very very close .im about 1mm out maybe 1.5 from being happy with it even though it is rideable as is id like to get it tiny bit nearer centre of chain on ring


--- End quote ---

 Try removing the 2.5mm spacer on the drive side of the BB & use 2 x1mm spacers instead & another 1mm spacer on the non-drive side.

motomagII:
no spacers there kind of 2 waqshers at 1mm ther i took one out but the crank arm then rubbed on the bb shell .

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