I purchased Sugino 130J-PCD130 (38T) and changed from the original 44T. 38T is the minimum size for PCD130. You can realize that the diameter of a Brompton Spider crank is just the size of a 38T ring.
38T
44TSunday, June 7, 2015
38T Chainring suitable for Brompton!
If you want to try a hill climb ride with your Brompton, you might adopt a 38T chainring.
I purchased Sugino 130J-PCD130 (38T) and changed from the original 44T. 38T is the minimum size for PCD130. You can realize that the diameter of a Brompton Spider crank is just the size of a 38T ring.
38T
44T
I purchased Sugino 130J-PCD130 (38T) and changed from the original 44T. 38T is the minimum size for PCD130. You can realize that the diameter of a Brompton Spider crank is just the size of a 38T ring.
38T44T
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awesome, about to do the same thing myself!
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