
The PRO Gap Cap Expander is a unidirectional carbon cap that is made specifically for carbon steerers. It is used for 1 1/8 inch steerer tubes. The minimum inner diameter for the forksteerer is 23mm for this top cap. This version is 25mm in length.
The PRO Gap Cap Expander is a unidirectional carbon cap that is made specifically for carbon steerers. It is used for 1 1/8 inch steerer tubes. The minimum inner diameter for the forksteerer is 23mm for this top cap. This version is 25mm in length.
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